LD Didactic (LEYBOLD) Scientific Teaching Manual
... state 4 to state 1 are prevented by very fast transitions almost excited using discharge lamps, optical pumpfrom state 4 to state 3 without radiation. The laser transiing with laser diodes is becoming more significant. tion takes place from level 3 into level 2 which is thermally 3. This is because ...
... state 4 to state 1 are prevented by very fast transitions almost excited using discharge lamps, optical pumpfrom state 4 to state 3 without radiation. The laser transiing with laser diodes is becoming more significant. tion takes place from level 3 into level 2 which is thermally 3. This is because ...
Theoretical modeling and evaluation of the axial resolution of the
... Confocal imaging systems are attractive because of their enhanced three-dimensional imaging capability.1 The optical system images light scattered from the regions in the neighborhood of the focal plane and this is focused onto a pinhole. The confocal pinhole selectively allows light from a specific ...
... Confocal imaging systems are attractive because of their enhanced three-dimensional imaging capability.1 The optical system images light scattered from the regions in the neighborhood of the focal plane and this is focused onto a pinhole. The confocal pinhole selectively allows light from a specific ...
PDF version
... elastic light scattering from small particles as a diagnostic tool. Elastic light scattering has an extremely large scattering cross-section, allowing for single particle interrogation. This is critical in applications where trace amounts of suspect particles are to be detected in a diverse backgrou ...
... elastic light scattering from small particles as a diagnostic tool. Elastic light scattering has an extremely large scattering cross-section, allowing for single particle interrogation. This is critical in applications where trace amounts of suspect particles are to be detected in a diverse backgrou ...
Fiber-Optic Chemical Sensors and Fiber-Optic Bio-Sensors
... This type of fibers compared with silica base fibers is more flexible and cheaper. Their numeric aperture (NA) (0.4–0.5) is higher than silica-based fiber (0.1–0.28) and the attenuation of POF is around of 1 dB/m at 650 nm. The sensor system using the microstructure polymer optical fiber was describ ...
... This type of fibers compared with silica base fibers is more flexible and cheaper. Their numeric aperture (NA) (0.4–0.5) is higher than silica-based fiber (0.1–0.28) and the attenuation of POF is around of 1 dB/m at 650 nm. The sensor system using the microstructure polymer optical fiber was describ ...
Mode-Matching Analysis of Whispering-Gallery
... microcavity analysis. With this technique, optical properties such as resonance wavelength, quality factor and electromagnetic field distribution of an arbitrarily shaped microcavity can be computed with high accuracy. To illustrate this, a mode matching analysis that involves a single propagating wh ...
... microcavity analysis. With this technique, optical properties such as resonance wavelength, quality factor and electromagnetic field distribution of an arbitrarily shaped microcavity can be computed with high accuracy. To illustrate this, a mode matching analysis that involves a single propagating wh ...
Fiber Optics
... several ways in which one can measure the beat length of a fiber. In this exercise, you will measure the beat length by observing the scattered light pattern coming out of the fiber. To perform this task in a rigorous way, you must first find the orientation of the fiber axes. You may use the same f ...
... several ways in which one can measure the beat length of a fiber. In this exercise, you will measure the beat length by observing the scattered light pattern coming out of the fiber. To perform this task in a rigorous way, you must first find the orientation of the fiber axes. You may use the same f ...
Development and Application of Time
... Gordon studied the interface electrochemical properties by SPR method for the first time in 1980 [49,50]. Two Swedish scientists, Nylander and Liedberg, firstly applied SPR technology to chemical sensors field in 1982 [51,52]. Meanwhile, they successfully used SPR technology for gas detection and re ...
... Gordon studied the interface electrochemical properties by SPR method for the first time in 1980 [49,50]. Two Swedish scientists, Nylander and Liedberg, firstly applied SPR technology to chemical sensors field in 1982 [51,52]. Meanwhile, they successfully used SPR technology for gas detection and re ...
The measurement of rough surface topography using coherence
... The purpose of this guide is to describe good practice for the measurement and characterisation of rough surface topography using coherence scanning interferometry (commonly referred to as vertical scanning white light interferometry). This guide is aimed at users of coherence scanning interferometr ...
... The purpose of this guide is to describe good practice for the measurement and characterisation of rough surface topography using coherence scanning interferometry (commonly referred to as vertical scanning white light interferometry). This guide is aimed at users of coherence scanning interferometr ...
The Temperature Dependence Of The Gain In
... links has been a major force behind research into solid ...
... links has been a major force behind research into solid ...
Effect of Vanadium Incorporation on Electrochemical Performance of
... edge energy for LiFe0.95V0.05PO4/C is between those of trivalent and tetravalent V compounds, revealing that the valence of V in this LiFe0.95V0.05PO4/C specimen should be between +3 and +4. The pre-edge features of V compounds are too complicated to interpret due to the stronger d/p hybridization t ...
... edge energy for LiFe0.95V0.05PO4/C is between those of trivalent and tetravalent V compounds, revealing that the valence of V in this LiFe0.95V0.05PO4/C specimen should be between +3 and +4. The pre-edge features of V compounds are too complicated to interpret due to the stronger d/p hybridization t ...
The Michelson Interferometer Wavelength Meter
... The Fourier-transform operation on the interferogram allows the wavelength of the signals to be separated and measured individually – i.e. each of the input signals is individually resolved both in frequency and in power The Fourier-transform operation does not compromise the wavelength accuracy of ...
... The Fourier-transform operation on the interferogram allows the wavelength of the signals to be separated and measured individually – i.e. each of the input signals is individually resolved both in frequency and in power The Fourier-transform operation does not compromise the wavelength accuracy of ...
Principles, Instrumentation, and Applications of Infrared Multispectral
... photodetectors (QWIPs). In the following section, characteristics, advantages, and limitations of four of the most widely used IR FPAs in IR multispectral imaging, i.e., InGaAs, InSb, HgCdTe, and QWIP, will be described. ...
... photodetectors (QWIPs). In the following section, characteristics, advantages, and limitations of four of the most widely used IR FPAs in IR multispectral imaging, i.e., InGaAs, InSb, HgCdTe, and QWIP, will be described. ...
Role of Pt-precursor on the performance of Pt/BaCO3/Al2O3·NOx
... quite good understanding of the NOx storage and sulphur poisoning mechanisms. However, it is not clearly known how to avoid the sulphur poisoning, improve the temperature stability and enhance the NOx storage capacity. Further research thus is required to solve these limitations. One interesting iss ...
... quite good understanding of the NOx storage and sulphur poisoning mechanisms. However, it is not clearly known how to avoid the sulphur poisoning, improve the temperature stability and enhance the NOx storage capacity. Further research thus is required to solve these limitations. One interesting iss ...
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... devices.7 In this paper we have explored the nonlinear optical properties of GaN and its interfaces. Several secondharmonic generation ~SHG! measurements of GaN ~Refs. 8–12! have been reported. These works measured the nonlinear susceptibility elements of GaN at a single fundamental wavelength of 10 ...
... devices.7 In this paper we have explored the nonlinear optical properties of GaN and its interfaces. Several secondharmonic generation ~SHG! measurements of GaN ~Refs. 8–12! have been reported. These works measured the nonlinear susceptibility elements of GaN at a single fundamental wavelength of 10 ...
Inverse Problems In Multiple Light Scattering
... between the optical field and the scattering structure. Thus, because ensemble averaging inherently destroys specific characteristics of random processes, one can only recover limited information about the medium. This dissertation discusses practical means that go beyond ensemble averaging to probe ...
... between the optical field and the scattering structure. Thus, because ensemble averaging inherently destroys specific characteristics of random processes, one can only recover limited information about the medium. This dissertation discusses practical means that go beyond ensemble averaging to probe ...
Length Scales Analysis of Wave Scattering from Rough Surfaces
... The aim is to study surface characteristics through scattered wave intensity in frame work of the Kirchhoff wave theory. There are three length scales which scaling behavior between them play role in rough surface scattering, wave-length (λ) of the incident wave, the roughness (σ) and the correlatio ...
... The aim is to study surface characteristics through scattered wave intensity in frame work of the Kirchhoff wave theory. There are three length scales which scaling behavior between them play role in rough surface scattering, wave-length (λ) of the incident wave, the roughness (σ) and the correlatio ...
Laser-based displays: a review - Optical Microsystems Laboratory
... Even though the idea of using lasers for displays was proposed in the 1960s [1], it is the availability of lasers emitting red, green, and blue colors that triggered the recent development of portable laser projectors. An immediate advantage of using spectrally pure laser light for displays is the w ...
... Even though the idea of using lasers for displays was proposed in the 1960s [1], it is the availability of lasers emitting red, green, and blue colors that triggered the recent development of portable laser projectors. An immediate advantage of using spectrally pure laser light for displays is the w ...
Laser Medicine and Medical Imaging – J. G. Fujimoto
... OCT Imaging Needle OCT applications have been limited to the surfaces or lumina of organ systems because the penetration depth of OCT is ~2-3 mm in most tissues. It has not been possible in the past to image structures inside solid tissues or organs. There are, however, many clinical scenarios where ...
... OCT Imaging Needle OCT applications have been limited to the surfaces or lumina of organ systems because the penetration depth of OCT is ~2-3 mm in most tissues. It has not been possible in the past to image structures inside solid tissues or organs. There are, however, many clinical scenarios where ...
Lecture 16 - EECS @ UMich
... to the resist layer + the process of forming an etching mask (i.e. the resist development and etc.) ...
... to the resist layer + the process of forming an etching mask (i.e. the resist development and etc.) ...
Full-Text PDF
... as q itself because so much of our world progresses geometrically rather than arithmetically. We call this procedure of plotting scattered intensity versus q double logarithmically “Q-space analysis”. We shall see that Q-space analysis has descriptive abilities that can compare the similarities and ...
... as q itself because so much of our world progresses geometrically rather than arithmetically. We call this procedure of plotting scattered intensity versus q double logarithmically “Q-space analysis”. We shall see that Q-space analysis has descriptive abilities that can compare the similarities and ...
de Sénarmont Bias Retardation in DIC Microscopy Introduction
... enabled the prisms to be physically located some distance away from the condenser and objective aperture conjugate planes. This modification allows the use of standard microscope optical components in modern DIC systems, and is currently enjoying widespread application (3-5). In a manner similar to ...
... enabled the prisms to be physically located some distance away from the condenser and objective aperture conjugate planes. This modification allows the use of standard microscope optical components in modern DIC systems, and is currently enjoying widespread application (3-5). In a manner similar to ...
Nonlinear polarization effects in optical fibers: polarization attraction
... [23–25]. A key breakthrough advance for the practical usage of nonlinear lossless polarizers in telecom applications consisted in the demonstration of 10 Gbit/s on–off-keying (OOK) signal repolarization induced by a sub-Watt CW pump in a few km long span of telecom nonzero-dispersion-shifted fiber ( ...
... [23–25]. A key breakthrough advance for the practical usage of nonlinear lossless polarizers in telecom applications consisted in the demonstration of 10 Gbit/s on–off-keying (OOK) signal repolarization induced by a sub-Watt CW pump in a few km long span of telecom nonzero-dispersion-shifted fiber ( ...
Ultrafast Carrier and Lattice Dynamics in Highly
... skills paired with a sixth sense for picking the “right” graduate students enable him to create an extremely collegial and friendly environment in his research group. Throughout the years in Eric’s group I was always happy to go to “lab” in the morning — even if it was not for the work sometimes, it ...
... skills paired with a sixth sense for picking the “right” graduate students enable him to create an extremely collegial and friendly environment in his research group. Throughout the years in Eric’s group I was always happy to go to “lab” in the morning — even if it was not for the work sometimes, it ...
pH Dependent Photocorrosion of GaAs/AlGaAs Quantum Well
... 11.2), the rate of oxide dissolution is much higher than the oxidation rate of GaAs and AlGaAs, resulting in a rapid etching of the QW microstructure as illustrated in Figure 5. At near neutral alkaline environment (pH 6−9.2), Ga2O3 and As2O3 oxides are less soluble and tend to accumulate on the sur ...
... 11.2), the rate of oxide dissolution is much higher than the oxidation rate of GaAs and AlGaAs, resulting in a rapid etching of the QW microstructure as illustrated in Figure 5. At near neutral alkaline environment (pH 6−9.2), Ga2O3 and As2O3 oxides are less soluble and tend to accumulate on the sur ...
Optical Nonlinearities in the Transparency Region of Bulk Semiconductors . W
... generality, we assume that the measurement is performed on beam 1, while beam 2 acts as an excitation source only. The first terms on the right-hand side of the preceding equations correspond to self-action (ie., single-beam experiments). The second terms correspond to the case of an excite-probe ex ...
... generality, we assume that the measurement is performed on beam 1, while beam 2 acts as an excitation source only. The first terms on the right-hand side of the preceding equations correspond to self-action (ie., single-beam experiments). The second terms correspond to the case of an excite-probe ex ...