Laser beam shaping in industrial applications Wei-Yuen Tan 84717925
... My beam is bigger than yours ...
... My beam is bigger than yours ...
Sidelobe decline in single-photon 4Pi microscopy by Toraldo rings
... coherently illuminating and detecting the same point of a fluorescent specimen. The resulting PSF has an axial main peak that is about four times narrower than its confocal counterpart. However, the narrowing of the main peak is accompanied by a severe enlargement of the secondary axial sidelobes, w ...
... coherently illuminating and detecting the same point of a fluorescent specimen. The resulting PSF has an axial main peak that is about four times narrower than its confocal counterpart. However, the narrowing of the main peak is accompanied by a severe enlargement of the secondary axial sidelobes, w ...
Advanced Optics Lab at San Jose State University Ramen
... given liquid • In this project the students measure the refractive index of several liquids. The principle is based on the well known "Apparent depth technique" but with better precision. • (a) Expansion and collimation of the laser beam A He-Ne laser is used as a source of light. The laser light is ...
... given liquid • In this project the students measure the refractive index of several liquids. The principle is based on the well known "Apparent depth technique" but with better precision. • (a) Expansion and collimation of the laser beam A He-Ne laser is used as a source of light. The laser light is ...
used to cook Infrared - “heat waves” Visible Light
... "When images of illuminated objects ... penetrate through a small hole into a very dark room ... you will see [on the opposite wall] these objects in their proper form and color, reduced in size ... in a reversed position, owing to the intersection of the rays". Da Vinci ...
... "When images of illuminated objects ... penetrate through a small hole into a very dark room ... you will see [on the opposite wall] these objects in their proper form and color, reduced in size ... in a reversed position, owing to the intersection of the rays". Da Vinci ...
Nineteen Ways to do 3-Dimensional Imaging
... Speckle interferometry is also known as electronic speckle pattern interferometry or as TV holography. It depends on the object being imaged to have a diffusely reflecting (i.e., rough) surface to create the speckle pattern. It also requires a reference surface which must also be diffusely reflectin ...
... Speckle interferometry is also known as electronic speckle pattern interferometry or as TV holography. It depends on the object being imaged to have a diffusely reflecting (i.e., rough) surface to create the speckle pattern. It also requires a reference surface which must also be diffusely reflectin ...
Topic 16: Geometric Optics
... caused by wave amplitude (like sound and water waves) and not the frequency. However, both mechanical waves and light waves have energy and momentum and both refract and interfere, thus showing that some characteristics are the same. ...
... caused by wave amplitude (like sound and water waves) and not the frequency. However, both mechanical waves and light waves have energy and momentum and both refract and interfere, thus showing that some characteristics are the same. ...
Microscope and Cell Lab Review
... http://biowithoutwalls.files.wordpress.com/2008/12/a_red_blood_cell_in_a_capillary_pancreatic_tissue_-_tem.jpg ...
... http://biowithoutwalls.files.wordpress.com/2008/12/a_red_blood_cell_in_a_capillary_pancreatic_tissue_-_tem.jpg ...
Fraunhofer Diffraction
... On the other hand, the double-slit interference pattern is sinusoidal, so it does not represent any finer details about the structure, such as e.g. sharp borders between bright and dark sections of the grating, are represented in the image. These details are conveyed by higher order diffraction maxi ...
... On the other hand, the double-slit interference pattern is sinusoidal, so it does not represent any finer details about the structure, such as e.g. sharp borders between bright and dark sections of the grating, are represented in the image. These details are conveyed by higher order diffraction maxi ...
ChE 393 Course Notes
... upon of the resist. When the optical system’s modulation transfer function (MTF) equals M, we can get proper exposure. MTF depends on spatial frequency of the object (i.e., how many lines/mm), photon wavelength, numerical aperture (or f-number) of lens, and the light’s coherence. Coherent and inco ...
... upon of the resist. When the optical system’s modulation transfer function (MTF) equals M, we can get proper exposure. MTF depends on spatial frequency of the object (i.e., how many lines/mm), photon wavelength, numerical aperture (or f-number) of lens, and the light’s coherence. Coherent and inco ...
Visible Wavelength Fiber Bragg Grating Arrays for
... As depicted in Fig. 1, a serial array of strong (R>90%), broadband (bandwidth>10nm) visible fiber Bragg gratings is used to map wavelength bins into time slots [3]. This design can resolve wavelengths to within 1-10 nanometers over a wide configurable spectral bandwidth. When a broadband pulse of li ...
... As depicted in Fig. 1, a serial array of strong (R>90%), broadband (bandwidth>10nm) visible fiber Bragg gratings is used to map wavelength bins into time slots [3]. This design can resolve wavelengths to within 1-10 nanometers over a wide configurable spectral bandwidth. When a broadband pulse of li ...
Phase Contrast
... Pinhole prevents out-of-focus light getting to the sensor(s) (PMT - Photomultiplier) (30 – 70 µm) Multi Photon does not require pinhole (90 – 500 µm) ...
... Pinhole prevents out-of-focus light getting to the sensor(s) (PMT - Photomultiplier) (30 – 70 µm) Multi Photon does not require pinhole (90 – 500 µm) ...
Advanced Live Cell Microscopy at the W. M. Keck Center for Cellular
... FRET = molecular communication Donor ...
... FRET = molecular communication Donor ...
Module syllabus: Advanced light microscope techniques
... The main objective of this module is to teach the basic knowledge of the advanced light microscopy techniques that are used in studies of plant cells. The basic concepts of light microscopy, construction and principles of microscopy operation and the proper techniques of light microscopy to analyse ...
... The main objective of this module is to teach the basic knowledge of the advanced light microscopy techniques that are used in studies of plant cells. The basic concepts of light microscopy, construction and principles of microscopy operation and the proper techniques of light microscopy to analyse ...
Electron Microscope
... the resolution for the scanning electron microscope is poorer than for the transmission electron microscope (5-20nm) ...
... the resolution for the scanning electron microscope is poorer than for the transmission electron microscope (5-20nm) ...
Assignment #2 - Rose
... in the z = 0 plane, with the beam waist radii w0x and w0y in the x and y-directions respectively. The contours of constant intensity are therefore ellipses instead of circles. Write expressions for the beam depth of focus, angular divergence, and radii of curvature in the x and y-directions, as func ...
... in the z = 0 plane, with the beam waist radii w0x and w0y in the x and y-directions respectively. The contours of constant intensity are therefore ellipses instead of circles. Write expressions for the beam depth of focus, angular divergence, and radii of curvature in the x and y-directions, as func ...
Microscopy - BlackSage.com
... Described cork with “cells” – first use of “cell” to describe structure of living organism Used compound microscope ...
... Described cork with “cells” – first use of “cell” to describe structure of living organism Used compound microscope ...
ders plani - Ventspils Centra sākumskola
... Aims of the lesson: Build up awareness about the structure of the plant cell by developing students` approach to investigations in a scientific way by working with the microscope and making a drawing. ...
... Aims of the lesson: Build up awareness about the structure of the plant cell by developing students` approach to investigations in a scientific way by working with the microscope and making a drawing. ...
Click To
... Background: A high-average-power solid-state laser is typically pumped by injecting light from high-power two-dimensional semiconductor laser arrays. The laser arrays are frequently fitted with lenses that separately collimate the output of the bars so that the pump light is collimated well enough f ...
... Background: A high-average-power solid-state laser is typically pumped by injecting light from high-power two-dimensional semiconductor laser arrays. The laser arrays are frequently fitted with lenses that separately collimate the output of the bars so that the pump light is collimated well enough f ...
How to turn your microscope into a phase contrast microscope
... professional phase contrast devices, but it can serve its purpose quite well. Note that, in the absence of any object with shifted phases, the image will always be dark. If there is an object, we will see light, but that does not reveal whether the phase shift is positive or negative. To make the si ...
... professional phase contrast devices, but it can serve its purpose quite well. Note that, in the absence of any object with shifted phases, the image will always be dark. If there is an object, we will see light, but that does not reveal whether the phase shift is positive or negative. To make the si ...
Optical and digital microscopic imaging techniques and
... Despite having superior spatial resolution over the optical microscopes, electron microscopes must work under the vacuum environment. Thus, they cannot be used to observe living biology samples. In addition, the electron beam can damage the illuminated specimens. Other issues (i.e., the optimal cont ...
... Despite having superior spatial resolution over the optical microscopes, electron microscopes must work under the vacuum environment. Thus, they cannot be used to observe living biology samples. In addition, the electron beam can damage the illuminated specimens. Other issues (i.e., the optimal cont ...
D - Purdue Physics
... Compound microscope Amount of light (brightness of image) depends on numerical aperture of the objective: NA = nisinmax ...
... Compound microscope Amount of light (brightness of image) depends on numerical aperture of the objective: NA = nisinmax ...
Study Guide Quiz 1 Biol-10
... read your notes, recaps and study guides to score good grade in Quiz 1. 3. Compound Microscope: major parts, especially names and functions. 4. 4-Basic Rules a) support with both hands and cord coiled around arm b) Use only lens paper. Use sweeping motion to clean. Do not use circular or to-and-fro ...
... read your notes, recaps and study guides to score good grade in Quiz 1. 3. Compound Microscope: major parts, especially names and functions. 4. 4-Basic Rules a) support with both hands and cord coiled around arm b) Use only lens paper. Use sweeping motion to clean. Do not use circular or to-and-fro ...
Provedení, principy činnosti a základy výpočtu pro výměníky tepla
... Foil SG. Metallic wire (e.g. constantan) included in a thin plastic sheet. The foil is bonded to surface of measured object e.g. by cyanoacrylate glue. Typical gauge factor is 2 and resistance 120 (almost the same as resistance of Pt100 thermometers. Therefore the same technique for measurement of ...
... Foil SG. Metallic wire (e.g. constantan) included in a thin plastic sheet. The foil is bonded to surface of measured object e.g. by cyanoacrylate glue. Typical gauge factor is 2 and resistance 120 (almost the same as resistance of Pt100 thermometers. Therefore the same technique for measurement of ...
Confocal microscopy
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 and typical applications are in life sciences, semiconductor inspection and materials science.