In this lab you will use the phenomenon of interference... thickness of thin films. Two interference techniques, Michelson and... Thin Film Measurement 1 Introduction
... Two measuring techniques are used and compared with this set-up. The first involves using the micrometer on the mirror to measure the difference in zero path length between the thin film and no film. The second technique uses the step height change in the interference pattern much like the Fizeau te ...
... Two measuring techniques are used and compared with this set-up. The first involves using the micrometer on the mirror to measure the difference in zero path length between the thin film and no film. The second technique uses the step height change in the interference pattern much like the Fizeau te ...
A list of some commonly used formulas in optics
... incoming light beam (see figure). In the case that n1 is smaller than n2, the light is bent towards the normal. If n1 is greater than n2, the light is bent away from the normal (see figure below). Snell’s Law is expressed as n1sinθ1 = n2sinθ2. ...
... incoming light beam (see figure). In the case that n1 is smaller than n2, the light is bent towards the normal. If n1 is greater than n2, the light is bent away from the normal (see figure below). Snell’s Law is expressed as n1sinθ1 = n2sinθ2. ...
Hyperfine Structure of Rubidium
... generator to the piezo input on the laser power supply and to a different oscilloscope input. Also connect the function generator’s sync out to the Aux In on the oscilloscope and set the oscilloscope to trigger on Aux In. Set the function generator to triangle wave at 1 Vp-p and 1 Hz. Observe the re ...
... generator to the piezo input on the laser power supply and to a different oscilloscope input. Also connect the function generator’s sync out to the Aux In on the oscilloscope and set the oscilloscope to trigger on Aux In. Set the function generator to triangle wave at 1 Vp-p and 1 Hz. Observe the re ...
High-speed spectral-domain optical coherence tomography at 1.3
... nm (w = 0.5). The y-offset of 109.25 dB represents the sensitivity at zero depth and agrees well with the theoretically expected value of 110.3 dB based on Eq. (1). The fit value of 0.104 nm was larger than the predicted value by diffraction theory (0.063 nm). We attribute the discrepancy to aberra ...
... nm (w = 0.5). The y-offset of 109.25 dB represents the sensitivity at zero depth and agrees well with the theoretically expected value of 110.3 dB based on Eq. (1). The fit value of 0.104 nm was larger than the predicted value by diffraction theory (0.063 nm). We attribute the discrepancy to aberra ...
Geometrical and diffraction optics
... The étendue never increases in any optical system. A perfect optical system produces an image with the same étendue as the source. Shrinking the field size A makes the beam faster ( bigger). Area A=h2; Solid angle given by the marginal ray. ...
... The étendue never increases in any optical system. A perfect optical system produces an image with the same étendue as the source. Shrinking the field size A makes the beam faster ( bigger). Area A=h2; Solid angle given by the marginal ray. ...
Optical Sources
... • More electrons in higher energy level • Necessary to achieve optical amplification ...
... • More electrons in higher energy level • Necessary to achieve optical amplification ...
Fiber Optic Communications
... – Turns the amplifier into an oscillator – Accomplished by fabricating mirrors at each end of the medium causing the photons to bounce back and forth from one end to the other ...
... – Turns the amplifier into an oscillator – Accomplished by fabricating mirrors at each end of the medium causing the photons to bounce back and forth from one end to the other ...
Space-Time-Wavelength Mapping Based
... corresponds to 200 ps separation in time domain. Dispersed pulses are then passed through an electro-optic modulator to manipulate the power spectral density of the laser as desired, by using RF waveforms. The time-wavelength mapped pulses are then coupled to a diffraction grating with 600 lines/mm ...
... corresponds to 200 ps separation in time domain. Dispersed pulses are then passed through an electro-optic modulator to manipulate the power spectral density of the laser as desired, by using RF waveforms. The time-wavelength mapped pulses are then coupled to a diffraction grating with 600 lines/mm ...
LxxA, Overview of Microscopy methods, part a
... • Chemical composition of materials can be obtained using electron microprobes to produce characteristic X-ray emissions and electron energy losses. • Imaging (surface) can be characterized using secondary electrons, backscattered electrons, photo-electron, Auger electrons and ion scattering. • Crys ...
... • Chemical composition of materials can be obtained using electron microprobes to produce characteristic X-ray emissions and electron energy losses. • Imaging (surface) can be characterized using secondary electrons, backscattered electrons, photo-electron, Auger electrons and ion scattering. • Crys ...
肖连团 - 山西大学
... c, Schematic diagrams of the optical set-up. d, A laser scan image of a single molecule, showing a FWHM spot of 370 nm. ...
... c, Schematic diagrams of the optical set-up. d, A laser scan image of a single molecule, showing a FWHM spot of 370 nm. ...
... are optically active, including all amino acids. Specific rotation (also called rotary power) is defined to be the actual rotation per unit concentration and per unit length for solutions of the pure material. Specific rotations are published for many optically active substances at various temperatu ...
PROJECT TEM
... The first step in phase identification before the analysis of the diffraction patterns is a chemical analysis that can been done in a TEM microscope by X-rays energy dispersive spectrometry EDS, or electron energy loss spectrometry EELS. In addition to many other advantages such as the possibility o ...
... The first step in phase identification before the analysis of the diffraction patterns is a chemical analysis that can been done in a TEM microscope by X-rays energy dispersive spectrometry EDS, or electron energy loss spectrometry EELS. In addition to many other advantages such as the possibility o ...
Optical tweezers using a diode laser
... injected beam fills the back aperture. To move a spot of minimum size across the object plane requires that the approximately collimated beam at the back aperture be steered in angle while always filling the aperture. Moving a point source (from a focused laser beam for example) in the objective ima ...
... injected beam fills the back aperture. To move a spot of minimum size across the object plane requires that the approximately collimated beam at the back aperture be steered in angle while always filling the aperture. Moving a point source (from a focused laser beam for example) in the objective ima ...
Airway Luminal Diameter and Shape Measurement by Means of an
... (λ1 peak, the fixed distance between the pinhole and the point of diffraction (d), and the variable distance in Association. All rights reserved. question from the optical axis to the luminal surface (y ). E, The same geometry as in panel D shown from a simplified bird’s-eye ...
... (λ1 peak, the fixed distance between the pinhole and the point of diffraction (d), and the variable distance in Association. All rights reserved. question from the optical axis to the luminal surface (y ). E, The same geometry as in panel D shown from a simplified bird’s-eye ...
HeNe The Helium-Neon Laser - University of Toronto Physics
... mode at low power, reflect some of the laser beam into the spectrometer so as to measure the central wavelength of the light. Use the spectrometer with the entrance slit narrowed and without the focusing lens, in order to avoid overloading the detector. Make a search at higher sensitivity for other ...
... mode at low power, reflect some of the laser beam into the spectrometer so as to measure the central wavelength of the light. Use the spectrometer with the entrance slit narrowed and without the focusing lens, in order to avoid overloading the detector. Make a search at higher sensitivity for other ...
Microsoft Word Format - University of Toronto Physics
... mode at low power, reflect some of the laser beam into the spectrometer so as to measure the central wavelength of the light. Use the spectrometer with the entrance slit narrowed and without the focusing lens, in order to avoid overloading the detector. Make a search at higher sensitivity for other ...
... mode at low power, reflect some of the laser beam into the spectrometer so as to measure the central wavelength of the light. Use the spectrometer with the entrance slit narrowed and without the focusing lens, in order to avoid overloading the detector. Make a search at higher sensitivity for other ...
Demonstration of Optical Rotatory Dispersion of Sucrose
... in intervals of 1.0 cm. The intensity of the scattered beam was recorded as a function of distance. It is also possible to keep the detector fixed and to use a light pipe in which one end can be moved down the tube while the other end is attached to the monochromator. No measurements were taken near ...
... in intervals of 1.0 cm. The intensity of the scattered beam was recorded as a function of distance. It is also possible to keep the detector fixed and to use a light pipe in which one end can be moved down the tube while the other end is attached to the monochromator. No measurements were taken near ...
Bioluminescence Microscopy
... Advantages and Challenges In bioluminescence microscopy we detect light that is produced due to a chemical reaction of an enzyme (luciferase) with its substrate (luciferin). Similar to the much better known fluorescence approaches, bioluminescence is a technique that can be used for non-invasive ana ...
... Advantages and Challenges In bioluminescence microscopy we detect light that is produced due to a chemical reaction of an enzyme (luciferase) with its substrate (luciferin). Similar to the much better known fluorescence approaches, bioluminescence is a technique that can be used for non-invasive ana ...
Compact Adaptive Optics Line Scanning Ophthalmoscope
... consisting of a lenslet array and CCD camera is typically used for rapid detection of ocular aberrations [31], but other techniques such as interferometry can also be used. Likewise, there are several methods to achieve wavefront correction including MEMS- ...
... consisting of a lenslet array and CCD camera is typically used for rapid detection of ocular aberrations [31], but other techniques such as interferometry can also be used. Likewise, there are several methods to achieve wavefront correction including MEMS- ...
lecture 3 Introduction to Laser
... More Electrons in higher energy level Pumping: Process to achieve population inversion usually through external energy source In general if N2 > N1 then MEDIA IS SAID TO BE ACTIVE ...
... More Electrons in higher energy level Pumping: Process to achieve population inversion usually through external energy source In general if N2 > N1 then MEDIA IS SAID TO BE ACTIVE ...
11-17_MICROBE_SAMPLE2
... 2. What is the range of magnification for this microscope? 3. A student prepares a slide with the letter "d" and positions it on the stage in the normal reading position. When viewed, how will the "d" will appear? Draw it on your answer sheet. 4. Which part of this microscope is used to control the ...
... 2. What is the range of magnification for this microscope? 3. A student prepares a slide with the letter "d" and positions it on the stage in the normal reading position. When viewed, how will the "d" will appear? Draw it on your answer sheet. 4. Which part of this microscope is used to control the ...
Observing AgNP Bacterial Cell Interactions
... If your research requires a better understanding of how nanomaterials interact with pathogenic specimens or other biological or materials based matrixes, CytoViva's Enhanced Darkfield Hyperspectral Microscope can serve to quickly advance your work. In addition, the high contrast images produced by t ...
... If your research requires a better understanding of how nanomaterials interact with pathogenic specimens or other biological or materials based matrixes, CytoViva's Enhanced Darkfield Hyperspectral Microscope can serve to quickly advance your work. In addition, the high contrast images produced by t ...
1. Wave Nature of Light
... 2. Gaussian beam in a cavity with spherical mirrors Consider an optical cavity formed b two aligned spherical mirrors facing each other as shown in Figure 1.1. Such an optical cavity is called a spherical mirror resonator, and is most commonly used in gas lasers. Sometimes, one of the reflectors is ...
... 2. Gaussian beam in a cavity with spherical mirrors Consider an optical cavity formed b two aligned spherical mirrors facing each other as shown in Figure 1.1. Such an optical cavity is called a spherical mirror resonator, and is most commonly used in gas lasers. Sometimes, one of the reflectors is ...
1489_1.pdf
... As discussed, although the best SNR is obtained when the detection and generation spots are superimposed, the detection should be separated from the generation by a certain distance. On the contrary, the depth evaluation becomes very difficult if on uses too wide separation (too large incident and d ...
... As discussed, although the best SNR is obtained when the detection and generation spots are superimposed, the detection should be separated from the generation by a certain distance. On the contrary, the depth evaluation becomes very difficult if on uses too wide separation (too large incident and d ...
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.