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Confocal microscopy basics

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Confocal microscopy The confocal microscope improves contrast in a specimen and enables optical sectioning The basic concept of confocal microscopy was originally developed by Marvin Minsky in the mid-1950s (patented in 1957) when he was a postdoctoral student at Harvard University. Minsky wanted to image neural networks in unstained preparations of brain tissue and was driven by the desire to image biological events at they occur in living systems Topics such as the confocal pinhole and optical sectioning will be outlined. Specific components that comprise a confocal microscope such as lasers, detectors, and the confocal scan head will be introduced, and basic imaging parameters required for the acquisition of a confocal image will be discussed

Confocal microscopy, most frequently confocal laser scanning microscopy (CLSM) or laser confocal scanning microscopy (LCSM), is an optical imaging technique for increasing optical resolution and contrast of a micrograph by means of using a spatial pinhole to block out-of-focus light in image formation Confocal microscopy is a powerful tool that creates sharp images of a specimen that would otherwise appear blurred when viewed under a conventional microscope Confocal microscopes use dichromatic mirrors to bounce light from the objective lens onto a second mirror and past a laser that separates the different colors of light waves. When a fluorescent dyed sample passes through the laser, the microscope separates the unwanted light bands from those required to view a specific part of the sample Principle of Confocal Microscope Confocal Microscope uses fluorescence lights to create micrographs of specimens. In a confocal microscope, the laser light is focused onto a defined spot at a specific depth within the sample. As a result, fluorescent lights are started to emit from the exact point

Confocal laser scanning microscope - set up: The system is composed of a a regular ßorescence microscope and the confocal part, including scan head, laser optics, computer. Higher z-resolution and reduced out-of-focus-blur make confocal pictures crisper and clearer. Only a small volume can be visualized by confocal microscopes at once Confocal Raman Microscopy Confocal Raman microscopy offers a number of significant advantages over other spectroscopic or visible microscopy techniques. First, Raman microscopy can be used for chemical or molecular analysis of unknown compounds in a small area, down to less than a micron Basic principles Confocal microscopy is an imaging technique that allows in vivo examination of corneal structures at high magnification and resolution. Building off of imaging principles developed for neuronal imaging, confocal microscopy was first used to study the cornea in the 1990s (9-10) Discover the LSM 9 family for confocal 4D imaging with high sensitivity and spectral flexibility. Add Airyscan 2 with its new Multiplex mode to profit from smart detection schemes and parallel pixel acquisition. Gently image dynamic processes in larger fields of view in superresolution and with acquisition times shorter than ever before

Confocal microscopy is broadly used to resolve the detailed structure of specific objects within the cell. Similar to widefield fluorescence microscopy, various components of living and fixed cells or tissue sections can be specifically labeled using immunofluorescence, for example, and then visualized in high resolution Basics of Confocal Microscopy Basics of Confocal Microscopy Confocal microscopy has advantages over widefield microscopy. The reduction of out-of-focus light from the focal plane, which leads to images only from the in-focus planes, reduces haziness, and increases the resolution of images The specimen was imaged with a 100x oil immersion objective (without zoom) using the largest pinhole diameter setting on a confocal laser scanning biological microscope in combination with a 405-nanometer violet diode laser (Hoechst), a 488-nanometer argon-ion laser (Alexa Fluor 488), and a 543-nanometer helium-neon laser (MitoTracker)

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Confocal Scanning Microscope - Better Examine Dense Tissue

Basic Concepts in Laser Scanning Confocal Microscopy (PDF; 2.8 Mb) - Laser scanning confocal microscopy has become an invaluable tool for a wide range of investigations in the biological and medical sciences for imaging thin optical sections in living and fixed specimens ranging in thickness up to 100 micrometers. Modern instruments are. Aberrations in Confocal Microscopy Refinements in design have simplified confocal microscopy to the extent that it has become a standard research tool in cell biology. However, as confocal microscopes have become more powerful, they have also become more demanding of their optical components other animations at http://www.toutestquantique.fr/en/ Production : Physics Reimagined group (LPS, CNRS Universite Paris-Sud) with funding of Labex PALM

Basic concepts of microscopy Confocal Aperture Decreasing the pinhole size rejects more out of focus light, therefore improving contrast and effective z resolution. Decreasing the pinhole will increase x,y resolution (1.3x wide field) Decreasing pinhole size decreases the amount of the Airy disk that reaches the detector Confocal microscopy is a non-invasive imaging modality that visualizes skin lesions with cellular resolution resolution both in vivo and ex vivo Recommended Books on Confocal Microscopy - A surprisingly limited number of books dealing with various aspects of laser scanning and spinning disk confocal microscopy and related techniques are currently available from the booksellers. This section lists the FluoView Resource Center website development team's top 12 recommended books

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  1. This unit introduces the reader to the basic principles of confocal microscopy and the design and capabilities of current confocal microscopes. The advantages and disadvantages of confocal microscopy as compared to other techniques for fluorescence imaging are described. There are also practical gui
  2. ology; recognize clinical indications and limitations in the use of RCM, including diagnostic sensitivity and specificity, pre-surgical cancer margin mapping, recognition of.
  3. The publication of Basic Confocal Microscopy reflects the burgeoning need to train new students, technologists, and faculty wishing to use confocal microscopy in their research. A direct outgrowth of the authors' five-day intensive course in the subject begun in 2005, this book covers the basics and includes all the information required to.
  4. Confocal beam path The decisive design feature of a confocal LSM compared with a conventional microscope is the confocal aperture (usually called pinhole) arranged in a plane conjugate to the intermediate image plane and, thus, to the object plane of the micro-scope. As a result, the detector (PMT) can only detect light that has passed the pinhole

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The Principles of Microscopy • BMS 524 - Introduction to Confocal Microscopy and Image Analysis Purdue University Department of Basic Medical Sciences, School of Veterinary Medicine J.Paul Robinson, Ph.D. • Professor of Immunopharmacology • Director, Purdue University Cytometry Laboratories These slides are intended for use in a. View and Download Zeiss LSM 880 basic user's manual online. Confocal Light Microscopy with Airyscan. LSM 880 microscope pdf manual download The Basics of Confocal Microscopy Vineeta Rai and Nrisingha Dey * Institute of Life Sciences, Labora tory of Plant Biotechnology, Dept. of Gene Function & Regulation, Bhubaneswar (Orissa) India 1. Introduction Confocal microscopy is a powerful tool that creates sharp images of a specimen that would. The Basics of Confocal Microscopy 79 Now-a-days these filters are rapidly replaced by active optical devices such as acousto-optical devices

BACKGROUND: Confocal microscopy is a widely employed methodology in cellular biology, commonly used for investigating biological organization at the cellular and sub-cellular level. Most basic confocal microscopes are equipped to cleanly discriminate no more than four fluorophores in a given sample, limiting the utility of this method for co. This makes widefield microscopy the counterpart to confocal microscopy, where pinholes are used to block most of the light to and from the sample. This article will discuss widefield imaging and the most widely-used widefield techniques in microscopy, including brightfield, phase-contrast and widefield fluorescence microscopy The basic principle behind confocal microscopy is this use of spatial filtering to generate a focused spot of illumination. However, this solution only provides information about a single point at one time. In order to build an image, the focused spot of light must be scanned across the specimen The Basic Principle of Airyscanning Author: Klaus Weisshart Date: July 2014 Airyscanning is a technique based on confocal laser scanning microscopy. We introduce a detector concept that drastically improves signal by utilizing light that otherwise is rejected by the confocal pinhole. The increase

Confocal Microscope The Department of Biology at Saint Louis University offers a Leica SP8 confocal microscope with resonant scanner for academic and commercial use. Live-cell imaging can be performed using a stage incubator with programmable gas (O2, CO2 and N2) and temperature controls A confocal microscope follows a similar basic principle as a classic fluorescence microscope. The beam from a light source, usually a laser for confocal, is reflected by a dichroic mirror and focused by an objective lens on the sample. This light excites the fluorophores to emit a different wavelength, which travels back through the objective. Confocal microscopy is an advanced light microscopy method which utilises a 'pinhole' to eliminate out of focus light and is suitable for both live and fixed cells and tissues. The advantage of a confocal microscope over conventional wide-field microscopes is that discrete optical sections can be collected while eliminating the out of focus. Confocal microscopy, most frequently confocal laser scanning microscopy (CLSM) or laser confocal scanning microscopy (LCSM), is an optical imaging technique for increasing optical resolution and contrast of a micrograph by means of using a spatial pinhole to block out-of-focus light in image formation. Capturing multiple two-dimensional images at different depths in a sample enables the. The basic concept of confocal microscopy was developed originally by Minsky in the 1950s. Egger and Petran produced the first mechanical scanning confocal laser microscope (a multiple-beam confocal microscope with a Nipkow disk) 10 years later. Advances in computer and laser technology enabled improvements to the system, and the first.

Confocal microscopy improves on standard fluorescence microscopy by using pinholes to reject out-of-focus light (figure 1), which results in greater resolution, greater contrast and reduced noise. However, this pinhole only images a tiny area of a sample (approx. 100 nm) and consequently needs to be scanned across the whole sample, which takes. INTRODUCTION Confocal microscopy : (having the same focus ) An optical imaging technique for increasing optical resolution and contrast of a micrograph. Radiations emitted from laser cause sample to fluoresce. Uses pinhole screen to produce high resolution images. Eliminates out of focus. So images have better contrast and are less hazy. A. Basic Confocal Microscopy, Second Edition builds on the successful first edition by keeping the same format and reflecting relevant changes and recent developments in this still-burgeoning field.This format is based on the Confocal Microscopy Workshop that has been taught by several of the authors for nearly 20 years and remains a popular workshop for gaining basic skills in confocal microscopy This unit introduces the reader to the basic principles of confocal microscopy and the design and capabilities of current confocal microscopes. The advantages and disadvantages of confocal microscopy compared to other techniques for fluorescence imaging are described. There are also practical guidelines for sample preparation and optimization. Basic confocal microscopy. Smith CL(1). Author information: (1)National Institute of Neurological Disorders and Stroke, Bethesda, Maryland, USA. This unit introduces the reader to the basic principles of confocal microscopy and the design and capabilities of current confocal microscopes

Optical Microscopy Basics Reading: Novotny and Hecht Chapter 4. Point spread function 1. Spatial Resolution Resolution limits Axial resolution The benefit of confocal microscopy lies in the axial sectioning capabilities in dense samples. Experimental set-up of confocal microscopy A total of 20,000 copies of Basics of Light Microscopy & Imaging were printed, more than double the normal print run of Imaging & Microscopy. With this, we would like to underline that we are just Confocal Microscopy And Multiphoton Excitation Microscopy: The Genesis of Live Cell Imaging, SPIE Press Monograph Vol. PM161, USA. [7. Basic technical principle. With a confocal microscope, a point light source is generated with the help of a pinhole aperture. The light returning from the object passes through a second pinhole aperture, or the same aperture a second time, and impinges on the detector, as a rule a video camera

Basic Confocal Microscopy - We Did the Research for Yo

  1. The confocal microscopy core facility is located in the Department of Cell Biology and Anatomy which is located in the Basic Science Building. Facility Co-Directors: Patric K. Stanton, Ph.D. Department of Cell Biology And Anatomy patric_stanton@nymc.edu 914-594-4883. William Ross, Ph.D. Department of Physiology william_ross@nymc.edu (914) 594-411
  2. ating out-of-focus light in specimens thicker than the focal plane. This type of microscopy is ideal for localization of organelles or molecules in a sample or reconstructing 3.
  3. These basic principles of magnification underlie the operation and construction of the compound microscope. The elaboration of these principles has led to the development, over the past several hundred years, of today's sophisticated instruments capable of producing high-quality images from low to high magnification
  4. Join Dr Ann Wheeler as she reviews the basic principles of confocal microscopy. Review best practice for confocal microscopy: from sample preparation through to data analysis, common pitfalls and problems, optimizing instrument set up and the advanced applications for which confocal microscopy can be used
  5. ated are a cone of light above and below the focal (dark blue) point (Fig. 9A). Together the confocal microscope's two pinholes sig
  6. MICROSCOPY DAY 2011: Basics of Microscopy Imperial CollegeLondon Martin Spitaler • Properties of light: • Magnification and defraction limit • Contrasting techniques in transmitted light microscopy • Fluorescence microscopy techniques: •Eppqifluorescence technique • Widefield microscopes • Confocal microscopes • Light as a tool

Potential users can learn more about our system by viewing the seminar below, The ISU Confocal Microscopy Core Facility: overview and applications for biological research. Part 1. Basic overview of the Leica SP8 Confocal system; lightpath; White Light Laser; Synergy among components. 15 min The publication of Basic Confocal Microscopy reflects the burgeoning need to train new students, technologists, and faculty wishing to use confocal microscopy in their research. A direct outgrowth of the authors’ five-day intensive course in the subject begun in 2005, this book covers the basics and includes all the informatio Laser Scanning Confocal Microscopy. Laser scanning confocal microscopes employ a pair of pinhole apertures to limit the specimen focal plane to a confined volume approximately a micron in size. Relatively thick specimens can be imaged in successive volumes by acquiring a series of sections along the optical (z) axis of the microscope

The C2+ confocal microscope is a basic model within the family of Nikon confocal products. The C2+ is designed as an essential microscopy tool for the laboratory, providing powerful and robust imaging capabilities. The high-efficiency scan heads and detectors, coupled with Nikon's unrivaled optics, provide superior confocal images In 1957, Marvin Minsky applied for a patent in which the basic principle of confocal microscopy is described for the first time. But it took another 30 years and the development of the laser as a light source until confocal microscopy became a standard microscopy technique. The following is a brief overview of confocal microscopy as it is used today in laboratories and industrial applications 3. Some confocal platforms can be used effectively on live specimens as well as live-cell imaging. 4. Confocal is the clear best choice in some cases, like with tissue slices. 5. Confocal microscopy provides more resolution in the z-axis, or depth. For advances in confocal microscopes, Ferrand mentions GE Healthcare's EDGE Confocal on the IN. Memorial Sloan Kettering Cancer Center, 2nd Annual Basic Course in Reflectance Confocal Microscopy: Non-Invasive Diagnosis of Skin Cancer, 9/22/2019 8:00:00 AM - 9/22/2019 5:35:00 PM, Reflectance Confocal Microscopy (RCM) is a non-invasive device that images skin lesions at high resolution in vivo, similar to traditional pathology. This course will help attendees develop familiarity with the. Non-contact measurement of surface roughness, flatness, topography & thickness. Learn mor

2.1 Turn on the power to the microscope. (1) Turn on the power to the motorized stage. POWER (2) Turn on the power to the piezo Z stage. (3) Turn on the power to the halogen lamp (for visual diascopic microscopy). (4) Turn on the power to the mercury lamp (for visual fluorescence microscopy). INTENSILIGHT C-HGFIE LAMP POWER RUN TIME hrs Confocal microscopy of colloids V Prasad, D Semwogerere, ER Weeks, J. Phys.: Cond. Mat. 19, 113102 (2007) View abstract / PDF version / Journal web page. I realize many people reading this page aren't interested in colloids per se, but part of this article covers the same material as this web page. To start with, you need to understand. Confocal microscopy would also be useful in ascertaining the diagnosis of various atypical endotheliopathies, such as posterior polymorphous dystrophy and iridocorneal endothelial syndrome. The presence or absence of the sub-basal nerve plexus allows the clinician to stage the severity of neurotrophic keratopathy Confocal microscopy is limited to the epidermis and very superficial papillary dermis, so it is not ideal for evaluating dermal based lesions, and I still recommend tissue biopsy of nodular lesions. Although this is a limitation, a majority of skin cancers originate in the epidermis or dermoepidermal junction, so for most lesions, confocal. Principles and Practices of Laser Scanning Confocal Microscopy Stephen W. Paddock* Abstract The laser scanning confocal microscope (LSCM) is an essential tool for many biomedical imaging appli-cations at the level of the light microscope. The basic principles of confocal microscopy and the evolution o

A confocal microscope is a device that utilizes a pinhole aperture to block incoming light of certain angles. This light-limiting system allows imaging of specimens that are thicker than the focal plane of the objective by restricting the out-of-focus light that comes from above and below the focal plane Confocal microscope software helps you do this. By giving you the details of your lenses, and what resolution you will achieve with what sampling (i.e. 1024 x 1024 or 4096 x 4096 pixels). You should choose to sample at a pixel rate that gives you twice the resolution (half the micron) that the specific lens gives you Confocal laser scanning microscopy (clsm) 1. Confocal Laser Scanning Microscopy (CLSM) Nethravathi R 2. The optical details of the confocal microscope are complex, but the basic idea is simple. CLSM is classified under Single beam scanning microscopy, as the specimen s illuminated and scanned using only 1 light source MARVIN MINSKY awarded confocal patent focal scanning microscope in 1957, US. Talk Overview. This talk introduces confocal microscopy, and discusses optical sectioning, reconstruction of 3D images, and how the laser-scanning confocal microscope and spinning disk confocal microscope work

Stochastic Optical Reconstruction Microscopy (STORM

Covers brightfield microscopy, fluorescence microscopy, and electron microscopy. Introduction to microscopes and how they work. Covers brightfield microscopy, fluorescence microscopy, and electron microscopy. If you're seeing this message, it means we're having trouble loading external resources on our website. Basic cell structures He also teaches both basics and advances on confocal microscope, trying to help students to understand the mechanics of the microscope. He is always improving the facility and maintain the facility in an excellent shape. Nikon researchers are also helpful and they give us quick useful feedback when we have some questions and concerns on the. We have adapted a tandem scanning confocal microscope for real‐time, non‐invasive imaging of cells under in vivo conditions. This form of in vivo confocal imaging relies on the optical sectioning abilities of the confocal microscope to obtain en face, sequential, reflected light images of cells at various depths, up to 1 mm, within opaque organs in living animals

Microscopy Basics - Confoca

CONFOCAL MICROSCOPY - LINE SCANNING SETUP WITH HIGH BRIGHTNESS LED A Thesis Presented by Ali Vakili to 3.4 Basics of interferometry. Based on the optical path length, beams from reference and source arms interfere constructively (on the right) or destructively (on the left). 44 xi The CALM lectures 17th Oct Intro to Light Microscopy (Kurt Anderson) Auditorium 1 @10:00 24th Oct Intro to Confocal Microscopy (Matt Renshaw) Auditorium 1 @10:00 31st Oct Intro to Live Cell Imaging (Deborah Aubyn) Seminar room 4 @10:00 7th Nov Intro to Optical Sectioning (Donald Bell) Seminar room 3 & 4 @11:00 14th Nov Intro to Light Sheet Microscopy (Alessandro Ciccarelli

Confocal Microscopy - Introduction Olympus L

Spinning Disk Confocal Microscopy - Spinning disk confocal microscopy is rapidly emerging as the technique of choice for investigation of dynamics in living cells. Modern commercial instruments and high-performance camera systems are capable of providing high acquisition speeds with acceptable contrast and minimal photobleaching at the low light levels available with this technique Basics of conventional fluorescence microscope I n Fluorescence Microscopy, reflected light gives much better results, so almost all fluorescence microscope take this configuration. The configuration of a reflected light fluorescence (also known as epi-fluorescence) microscope is schematically shown on the left

The Basics of Microscopy Introduction. This webpage gives a short introduction to the basic principles of light microscopy. Brightfield Microscopy. best correction for aberrations and is the objective you should use for confocal microscopy and color image microscopy. A Plan-Neofluar is the best universal objective, it has a high. This course will provide the participants with an overview about the basics of microscopy (light and optics, contrast techniques and imaging). The confocal part will include multicolor, 3D and time lapse imaging as well as spectral imaging, photobleaching (FRAP, FLIP, FLAP) and photoactivation techniques The amazing power of a confocal microscope lies in its ability to isolate a single plane of focus from thick samples or overlapping objects, BUT the lasers need a straight optical path from their source to your specimen and back to the light detectors to achieve this. The Basic Confocal Light Path 1. Laser light (in blue) is focused by th

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Video: Basics of Confocal Microscopy - ZEIS

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Confocal microscopy - Wikipedi

Lesson 6 - Principles in Confocal Microscopy. There are two types of confocal microscopes - single pinhole confocal, or point scanners, where a single pinhole will discard the out of focus light and multiple point confocal, or spinning disks, where multiple pinholes will discard the out of focus light Reflectance confocal microscopy (RCM) is an exciting new imaging tool that helps clinicians in monitoring and diagnosis of skin lesions, including skin cancer. He also actively trains residents and medical students on the basics of confocal image interpretation which is a unique attribute of our program Confocal Microscopy: Basic Principles and Architectures / Tony Wilson; 3. Two-Photon Microscopy: Basic Principles and Architectures / Alberto Diaspro and Colin J. R. Sheppard; 4. Cross-Sections of Fluorescent Molecules in Multiphoton Microscopy / Chris Xu; 5. Resolution and Contrast in Confocal and Two-Photon Microscopy / James E. N. Jonkman. A brief description of the principles of confocal microscopy The confocal microscope has its name from the arrangement of the light path. In a confocal microscope, the illumination and detection lightpaths share a common focal plane, which is achieved by 2 pinholes that are equidistant to the specimen (see figure)

(PDF) The Basics of Confocal Microscopy - ResearchGat

The Confocal Microscope is a unique instrument that combines elements of light microscopy with a scanning system to allow visualization of a biologic specimen in three-dimensions. Using two lenses and a very precisely placed pinhole, the confocal microscope only allows in-focus light to pass through to the photo detector The confocal facility of the CCMI has 7 microscopes including basic confocal, swept field, light sheet, 2-photon and super resolution. In addition, 4 image workstations are available dedicated to image analysis Confocal microscopy is an optical imaging technique for increasing optical resolution and contrast of a micrograph by means of adding a spatial pinhole placed at the confocal plane of the lens to eliminate out-of-focus light. It enables the reconstruction of three-dimensional structures from the obtained images.This technique has gained popularity in the scientific and industrial communities.

Basic Principle of Confocal Microscope - Laser Scanning

Buy Basic Confocal Microscopy: NHBS - Robert L Price, W Gray (Jay) Jerome, Springer Natur Widefield microscopy (WF) refers to a basic sample illumination principle in microscopy. Since widefield microscopy permanently illuminates the whole sample (Figure 1). Typically, widefield microscopy utilizes light sources such as halogen, metal halide lamps or LED for sample illumination. Detection is performed through oculars or with the help of a digital camera Diagram: Confocal Microscope Light Path. The concept of how confocal microscopy actually works is relatively simple. The specific functionality and features of each system will vary but here's a general overview: An excitation laser or LED light source is focused to a narrow beam of light that is passed through the microscopes' objective and through a clear tissue such as a mouse brain. Optical technology at its best - The multi-functional and high-performance Optelics HYBRID Confocal with Nikon Optics White Light Confocal + Laser Confocal. In 1985, Lasertec released the first RBG confocal laser-scanning microscope. Decades later, the Optelics HYBRID Confocal with Nikon's legendary optics are continuing the legacy Introduction to confocal microscopy and fluorescence. The Science Creative Quarterly's overview of confocal microscopy - high res images also available. Kurt Thorn's short talk: Optical Sectioning and Confocal Microscopy Introduction to Spinning Disk Confocal Microscopy - Zeiss Campus; Starting 1985: Laser point scanners with beam scannin

Confocal Microscope Principle, Uses, Parts, Advantages

This review oversees the basic principles of FM, its confocal modes CFM and FCPM; for an at‐depth consideration of SRFM, see the article Super‐Resolution Optical Microscopy by J. Werner and A. Shreve. 2 Principles and Practical Aspects of Confocal Fluorescence Microscopy 2.1 Fluorescenc The confocal microscope room houses laser beams ranging from 402nm to 832nm the light (IR, visible and UV) from each is coupled by fiber optic to the confocal scanner, which moves a highly convergent low power beam across the specimen. Interlocks are in place to prevent users being exposed directly to the beam through the eyepieces. Authorized.

The Confocal Microscopy Facility of the Department of Biochemistry and Molecular Biophysics is open to Washington University researchers. The facility has a Zeiss LSM 510 laser-scanning microscope equipped with an argon ion laser and two Helium/Neon lasers which allow excitation over the blue-red visible spectrum. Two fluorescence detectors and a transmitted light detector are supplemented by. A new Zeiss LSM 980 plus Airyscan 2 high-resolution confocal system is up and running and is available for all New York Medical College (NYMC) clinical and basic science researchers including clients at BioInc@NYMC for near super-resolution imaging of cells and specimens as well as to quantitatively visualize dynamic processes in living specimens gently over extended periods of time (4D imaging) Confocal microscopy has become a primary method in many laboratories for visualizing microscopic structure in the third and fourth dimensions. However, in many cases individual users are expected to operate complex confocal scanning laser microscopes (CSLM) without being given the opportunity to learn basic principals The basic scheme here is known as confocal laser scanning fluorescence microscopy, where a laser at one wavelength excites fluorescent tags bound to structures in a sample The basic function of a Raman system Confocal Raman microscopy without pinhole optics The use of a stigmatic spectrograph and stigmatic microscope-spectrometer coupling optics creates two additional conjugate image planes at the slit and CCD eliminating the need for pinhole optics Light Microscopy Core Facility (LMCF) 4215 French Family Science Center 124 Science Drive Durham, NC 27708 lmcf@duke.edu (919) 660.123

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