Dynamic pulsed-beam shaping using a TAG lens in the
... Spatial light modulators are generally limited to refresh rates of less than 100 Hz, while galvanometers and acousto-optic modulators are primarily capable of deflecting and not shaping beams. Mirror arrays can be fast and effective, however they are expensive and subject to pixelation effects. Tuna ...
... Spatial light modulators are generally limited to refresh rates of less than 100 Hz, while galvanometers and acousto-optic modulators are primarily capable of deflecting and not shaping beams. Mirror arrays can be fast and effective, however they are expensive and subject to pixelation effects. Tuna ...
A Novel Modified Omega-K Algorithm for Synthetic Aperture Imaging Lidar through the Atmosphere
... principle of synthetic aperture radar (SAR) were successfully demonstrated in laboratory [3]. If we want to bring the experiments to the outside for long-range application, e.g., air-borne or space-borne synthetic aperture imaging lidar (SAIL), many effects should be taken into account [5]. Fortunat ...
... principle of synthetic aperture radar (SAR) were successfully demonstrated in laboratory [3]. If we want to bring the experiments to the outside for long-range application, e.g., air-borne or space-borne synthetic aperture imaging lidar (SAIL), many effects should be taken into account [5]. Fortunat ...
properties of laser beams
... called mode locking, it is possible to produce light pulses whose duration is roughly equal to the inverse of the linewidth of the laser transition 2→1. • If the line width is narrow the pulse width is very short~ 0.1-1 ns some flash lamps can emit light pulses with a duration of somewhat less than ...
... called mode locking, it is possible to produce light pulses whose duration is roughly equal to the inverse of the linewidth of the laser transition 2→1. • If the line width is narrow the pulse width is very short~ 0.1-1 ns some flash lamps can emit light pulses with a duration of somewhat less than ...
Vacuum-ultraviolet to infrared supercontinuum in hydrogen
... of fiber filled with hydrogen at 5 bar and pumped by pulses of 2.5 μJ. At this pressure the zero-dispersion point is at 446 nm [Fig. 1(e)]. The supercontinuum spans from 124 to beyond 1200 nm—measurements with a mid-IR spectrometer (with uncalibrated absolute response) showed a strong signal from 10 ...
... of fiber filled with hydrogen at 5 bar and pumped by pulses of 2.5 μJ. At this pressure the zero-dispersion point is at 446 nm [Fig. 1(e)]. The supercontinuum spans from 124 to beyond 1200 nm—measurements with a mid-IR spectrometer (with uncalibrated absolute response) showed a strong signal from 10 ...
Photonic band structure and emission characteristics of a metal-backed
... 关DOI: 10.1063/1.1496497兴 Semiconducting conjugated polymers are attractive gain media for optoelectronic devices due to their broad spectral emission range, good luminescence qualities, and ease of processing from solution. These properties suggest that it should be possible to construct compact ele ...
... 关DOI: 10.1063/1.1496497兴 Semiconducting conjugated polymers are attractive gain media for optoelectronic devices due to their broad spectral emission range, good luminescence qualities, and ease of processing from solution. These properties suggest that it should be possible to construct compact ele ...
High-speed addressable confocal microscopy for functional imaging
... mirrors, to sequentially build up a complete image. In such mirror-based systems, the scanning mirrors also direct the fluorescence emission collected by the same objective lens back to the central optical axis, so that a stationary pinhole located in an image plane can act as a spatial filter for p ...
... mirrors, to sequentially build up a complete image. In such mirror-based systems, the scanning mirrors also direct the fluorescence emission collected by the same objective lens back to the central optical axis, so that a stationary pinhole located in an image plane can act as a spatial filter for p ...
Signal-to-Signal-to-Noise-Ratio of Full-Field Fourier
... (DFT). This concept implementation has been recently demonstrated as spectral-domain OCT (SD-OCT) [4,5] and swept-source OCT (SS-OCT) [6]. It has been also demonstrated that the signal-to-noise ratio (SNR) of this new parallel data acquisition approach is improved as compared with that of TD-OCT, wh ...
... (DFT). This concept implementation has been recently demonstrated as spectral-domain OCT (SD-OCT) [4,5] and swept-source OCT (SS-OCT) [6]. It has been also demonstrated that the signal-to-noise ratio (SNR) of this new parallel data acquisition approach is improved as compared with that of TD-OCT, wh ...
Main presentation title goes here.
... Project overview and motivations The integration of optical components into a glass cantilever for high resolution force sensing An variable attenuator compatible with piezoelectric actuation A platform for manipulating particles or cells with optical forces Demonstration of novel physical dicing m ...
... Project overview and motivations The integration of optical components into a glass cantilever for high resolution force sensing An variable attenuator compatible with piezoelectric actuation A platform for manipulating particles or cells with optical forces Demonstration of novel physical dicing m ...
Nanowire Grid Polarizers for Mid- and Long-Wavelength
... The wire grid polarizer (WGP) remains one of the most useful optical components in the field and is prevalent in applications ranging from imaging and displays to communications and scientific instrumentation. The WGP typically consists of an array of metallic lines with sub-wavelength pitch support ...
... The wire grid polarizer (WGP) remains one of the most useful optical components in the field and is prevalent in applications ranging from imaging and displays to communications and scientific instrumentation. The WGP typically consists of an array of metallic lines with sub-wavelength pitch support ...
Total Reflection X-Ray Fluorescence Spectrometer
... The idea and first demonstration of TXRF were presented in 1971,1 and since then many publications have appeared describing both methodological developments and applications. The present state of TXRF was given by authors of some reviews.24 In the TXRF spectrometers a very small part only of the x- ...
... The idea and first demonstration of TXRF were presented in 1971,1 and since then many publications have appeared describing both methodological developments and applications. The present state of TXRF was given by authors of some reviews.24 In the TXRF spectrometers a very small part only of the x- ...
P1X
... Requirements for Laser action (Y&F 38.6): Theoretical laser: • We want a three level system in which the intermediate state is metastable (ie. the time for transition is much longer than the time for transition to other states). • If we can optically pump a three level system such that electrons a ...
... Requirements for Laser action (Y&F 38.6): Theoretical laser: • We want a three level system in which the intermediate state is metastable (ie. the time for transition is much longer than the time for transition to other states). • If we can optically pump a three level system such that electrons a ...
Chapter 5 : Diffraction and Beam Formation Using arrays
... Fourier transform relation is still valid by using the new aperture function C ( x ) . On the other hand, the Fourier transform of the radiation pattern (i.e., the scaled aperture function) can be viewed as the spatial frequency spectrum. ...
... Fourier transform relation is still valid by using the new aperture function C ( x ) . On the other hand, the Fourier transform of the radiation pattern (i.e., the scaled aperture function) can be viewed as the spatial frequency spectrum. ...
(FT-IR) Microspectroscopic Measurements of Intact Spheres
... spectra that would be recorded for PMMA spheres with radii of 2.5 lm and 5 lm are plotted in Fig. 2C. Several trends are obvious in these predictions. The imaginary part of the refractive index strongly influences the measured absorbance, as is expected from Beer’s law. Mie scattering, however, stro ...
... spectra that would be recorded for PMMA spheres with radii of 2.5 lm and 5 lm are plotted in Fig. 2C. Several trends are obvious in these predictions. The imaginary part of the refractive index strongly influences the measured absorbance, as is expected from Beer’s law. Mie scattering, however, stro ...
Three-dimensional imaging of a phase object from a single sample... Chien-Chun Chen, Huaidong Jiang, Lu Rong,
... To perform 3D CDI, it is necessary to acquire a sequence of 2D diffraction patterns by either tilting a sample at multiple orientations or using many identical copies of the sample.9,12,15,25,30 In some applications, however, it is very desirable to obtain the 3D structure of an object without requi ...
... To perform 3D CDI, it is necessary to acquire a sequence of 2D diffraction patterns by either tilting a sample at multiple orientations or using many identical copies of the sample.9,12,15,25,30 In some applications, however, it is very desirable to obtain the 3D structure of an object without requi ...
a 100-fold improvement in lithography resolution realized
... understand how a waveguide operates. A waveguide is a physical structure capable of transmitting electromagnetic signals. As opposed to transmitting electromagnetic signals through the air, with a waveguide electromagnetic energy is confined between the guide’s walls. While conventional waveguides h ...
... understand how a waveguide operates. A waveguide is a physical structure capable of transmitting electromagnetic signals. As opposed to transmitting electromagnetic signals through the air, with a waveguide electromagnetic energy is confined between the guide’s walls. While conventional waveguides h ...
Thermodynamic Limits of Spatial Resolution in Active Thermography
... surface is a prominent example of an inverse problem. An inverse problem is a general framework that is used to convert observed measurements into information about a physical object or system. Inverse problems are typically ill-posed, as opposed to the well-posed problems more typical when modeling ...
... surface is a prominent example of an inverse problem. An inverse problem is a general framework that is used to convert observed measurements into information about a physical object or system. Inverse problems are typically ill-posed, as opposed to the well-posed problems more typical when modeling ...
Acidity Test Kit Alkalinity Test Kit 9
... Alkalinity is the quantitative capacity of a water sample to neutralize an acid to a set pH. This measurement is very important in determining the corrosive characteristics of water due primarily to hydroxide, carbonate, and bicarbonate ions. Other sources of alkalinity can be from anions that can b ...
... Alkalinity is the quantitative capacity of a water sample to neutralize an acid to a set pH. This measurement is very important in determining the corrosive characteristics of water due primarily to hydroxide, carbonate, and bicarbonate ions. Other sources of alkalinity can be from anions that can b ...
Selective plane illumination microscopy techniques in
... Photomultiplier. Glass vacuum tube in which a cascade of electrons is induced by the arrival of a single photon; fast, single channel detector commonly used in confocal microscopy. Positioning stages. Micromotors to control the position of the sample. Three motors can move the sample in all three di ...
... Photomultiplier. Glass vacuum tube in which a cascade of electrons is induced by the arrival of a single photon; fast, single channel detector commonly used in confocal microscopy. Positioning stages. Micromotors to control the position of the sample. Three motors can move the sample in all three di ...
TO THE POSSIBILITY OF CALCULATION
... ray theory) fail to explain this fact and further research has yet to be made. This work ascribes this capability to a combination of spatial diversity of the information and cooperative detection, and aims to explore its usage in imaging systems. We have developed a method that uses spatial diversi ...
... ray theory) fail to explain this fact and further research has yet to be made. This work ascribes this capability to a combination of spatial diversity of the information and cooperative detection, and aims to explore its usage in imaging systems. We have developed a method that uses spatial diversi ...
Associate Professor Shien
... multiplexing (WDM) technologies can provide high speed and secure optical links that are immune to EM interference and that can transmit information to long distance without using electronic repeaters. Among them, erbium-doped fiber amplifier (EDFA) is the most commercial product to date. However, i ...
... multiplexing (WDM) technologies can provide high speed and secure optical links that are immune to EM interference and that can transmit information to long distance without using electronic repeaters. Among them, erbium-doped fiber amplifier (EDFA) is the most commercial product to date. However, i ...
Our single crystal CVD diamond opens the way to new
... absorption and birefringence for your application. These CVD diamond components can then be processed into virtually any shape and even mounted to enable you to get the best performance out of your system. ...
... absorption and birefringence for your application. These CVD diamond components can then be processed into virtually any shape and even mounted to enable you to get the best performance out of your system. ...
SHS_OH_flame_ApplOpt_revision_RJB
... The SHS instrument is illustrated in Figure 2 in the boxed area. It consists of a spectral bandpass filter (~ 3 nm FWHM), a beamsplitter, and two matched gratings aligned at an angle of ~5.3 degrees. The remainder of the experimental set-up is also pictured in Figure 2. The light source is a Deuter ...
... The SHS instrument is illustrated in Figure 2 in the boxed area. It consists of a spectral bandpass filter (~ 3 nm FWHM), a beamsplitter, and two matched gratings aligned at an angle of ~5.3 degrees. The remainder of the experimental set-up is also pictured in Figure 2. The light source is a Deuter ...
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... typical DLS experiments, as it is set by the time required by the scatterers to move over a distance q⫺1, where q is the wave vector. Thus, DWS is suitable for investigations of much slower dynamic processes, such as those developed in glassy systems, and this property of DWS opens a new field of ap ...
... typical DLS experiments, as it is set by the time required by the scatterers to move over a distance q⫺1, where q is the wave vector. Thus, DWS is suitable for investigations of much slower dynamic processes, such as those developed in glassy systems, and this property of DWS opens a new field of ap ...