SPIE2005 5754-12-b
... The physical limitations of lithographic imaging are ultimately imposed by the refractive indices of the materials involved. At oblique collection angles, the numerical aperture of an optical system is determined by nsin(θ) , where n is the lowest material refractive index (in the absence of any ref ...
... The physical limitations of lithographic imaging are ultimately imposed by the refractive indices of the materials involved. At oblique collection angles, the numerical aperture of an optical system is determined by nsin(θ) , where n is the lowest material refractive index (in the absence of any ref ...
Study of the temporal and spatial dynamics of
... of the properties of the medium. We show that a model obtained by upgrading the theory of the moving breakdown allows accurate interpretation of the experimental observations. ...
... of the properties of the medium. We show that a model obtained by upgrading the theory of the moving breakdown allows accurate interpretation of the experimental observations. ...
253.pdf
... cavity a damped oscillatory optical output is observed. This is accompanied by a similar perturbation in the carrier density, usually of smaller amplitude. The system behaves as a tuned circuit and a resonant condition can be achieved in the system transfer function, which is the ratio of the light ...
... cavity a damped oscillatory optical output is observed. This is accompanied by a similar perturbation in the carrier density, usually of smaller amplitude. The system behaves as a tuned circuit and a resonant condition can be achieved in the system transfer function, which is the ratio of the light ...
Using Complementary Acoustic and Optical Techniques for
... described as the film thickness that for a given refractive index of the adsorbed molecules would yield the measured shift in plasmon angle. It is for example typically assumed that n ≈ 1.45 is a good approximation for most proteins, although there are clear indications in the experimental and theor ...
... described as the film thickness that for a given refractive index of the adsorbed molecules would yield the measured shift in plasmon angle. It is for example typically assumed that n ≈ 1.45 is a good approximation for most proteins, although there are clear indications in the experimental and theor ...
REDCap Technical Overview Introduction REDCap Infrastructure
... To help protect and secure the data stored in REDCap’s back end database, the software application employs various methods to protect against malicious users who may attempt to identify and exploit any security vulnerabilities in the system. Such methods will be described here in technical detail. I ...
... To help protect and secure the data stored in REDCap’s back end database, the software application employs various methods to protect against malicious users who may attempt to identify and exploit any security vulnerabilities in the system. Such methods will be described here in technical detail. I ...
here - Optoelectronics Research Centre
... biological tissues [1, 2]. It is analogous to ultrasound B-scan imaging except that it uses light instead of acoustic vibration to create the image. The term A-scan and Bscan are used commonly in OCT and ultrasonography because of the similarities in the way both techniques are constructing their im ...
... biological tissues [1, 2]. It is analogous to ultrasound B-scan imaging except that it uses light instead of acoustic vibration to create the image. The term A-scan and Bscan are used commonly in OCT and ultrasonography because of the similarities in the way both techniques are constructing their im ...
Recent advances in transformation optics
... pursuits, it is impossible to develop a more efficient and directional radar antenna, a brighter light source, or an instrument with higher imaging resolution. One of the central aims of these devices is to control and direct electromagnetic fields. For instance, by optimizing the curvature of glass ...
... pursuits, it is impossible to develop a more efficient and directional radar antenna, a brighter light source, or an instrument with higher imaging resolution. One of the central aims of these devices is to control and direct electromagnetic fields. For instance, by optimizing the curvature of glass ...
Recent advances in transformation optics
... natural materials to fulfil such demands. For example, natural materials only show magnetism (m/m0 s 1) up to terahertz frequencies. Fortunately, the emerging field of metamaterials offers an entirely new route to design material properties at will, so that the transformation optical design could be ...
... natural materials to fulfil such demands. For example, natural materials only show magnetism (m/m0 s 1) up to terahertz frequencies. Fortunately, the emerging field of metamaterials offers an entirely new route to design material properties at will, so that the transformation optical design could be ...
Composite THz materials using aligned metallic
... size of the features making a composite is much smaller than the wavelength of light, then such a composite can be thought of as a homogeneous (however, anisotropic) medium [3,4] that can exhibit various unusual properties. One possible implementation of a THz metamaterial is in the form of the peri ...
... size of the features making a composite is much smaller than the wavelength of light, then such a composite can be thought of as a homogeneous (however, anisotropic) medium [3,4] that can exhibit various unusual properties. One possible implementation of a THz metamaterial is in the form of the peri ...
Variable xy-UV beam expander for high-power laser
... despite internal monitoring and crystal compensation, they are never 100% stable. For a finely tuned diffraction limited optical system, such input beam drift can be detrimental to the imaging performance. In the worst case, the laser needs to be replaced after its power has dropped below an irrecov ...
... despite internal monitoring and crystal compensation, they are never 100% stable. For a finely tuned diffraction limited optical system, such input beam drift can be detrimental to the imaging performance. In the worst case, the laser needs to be replaced after its power has dropped below an irrecov ...
Get PDF - OSA Publishing
... the nonlinear wave-mixing process [1–6]. Under EIT conditions FWM signals can be allowed to transmit through the atomic medium and also the fluorescence induced by spontaneous emission can be generated [7–10]. Due to the two counter propagating coupling fields, the EIT-based nonlinear schemes can be ...
... the nonlinear wave-mixing process [1–6]. Under EIT conditions FWM signals can be allowed to transmit through the atomic medium and also the fluorescence induced by spontaneous emission can be generated [7–10]. Due to the two counter propagating coupling fields, the EIT-based nonlinear schemes can be ...
Laser Ignition in Internal Combustion Engines
... Laser ignition, or laser-induced ignition, is the process of starting combustion by the stimulus of a laser light source. Basically, energetic interactions of a laser with a gas may be classified into one of the following four schemes as described in [5]: • thermal breakdown • non-resonant breakdown ...
... Laser ignition, or laser-induced ignition, is the process of starting combustion by the stimulus of a laser light source. Basically, energetic interactions of a laser with a gas may be classified into one of the following four schemes as described in [5]: • thermal breakdown • non-resonant breakdown ...
Size Influence on the Propagation Loss Induced by Sidewall
... functions on a single substrate. As silicon is transparent at wavelengths larger than 1.1 m, including the optical communication bands, the silicon film of SOI substrates can be used to fabricate low-loss submicrometer optical waveguides [1], [2]. Silicon–silicon dioxide (Si–SiO ) waveguides benefit ...
... functions on a single substrate. As silicon is transparent at wavelengths larger than 1.1 m, including the optical communication bands, the silicon film of SOI substrates can be used to fabricate low-loss submicrometer optical waveguides [1], [2]. Silicon–silicon dioxide (Si–SiO ) waveguides benefit ...
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... can hold, which is required for the specific waves in question. For example, for a frequency ω1 , where (ω1 ) = 0 , only one transverse wave can propagate in chiral media. The wave is circularly polarized, and the sense of rotation depends on the sign of the chirality parameter α . This wave is an a ...
... can hold, which is required for the specific waves in question. For example, for a frequency ω1 , where (ω1 ) = 0 , only one transverse wave can propagate in chiral media. The wave is circularly polarized, and the sense of rotation depends on the sign of the chirality parameter α . This wave is an a ...
2. Measurement of refractive index of liquids using fiber optic
... The paper describes a technique to determine the refractive index of liquids using reflective type fiber optic displacement sensor. The sensor consists of two multimode step index fibers and a mirror. The output light intensity from the receiving fiber is measured as a function of displacement of th ...
... The paper describes a technique to determine the refractive index of liquids using reflective type fiber optic displacement sensor. The sensor consists of two multimode step index fibers and a mirror. The output light intensity from the receiving fiber is measured as a function of displacement of th ...
CHAPTER 4---
... Figure 5.1-5 Spectral dependence of the gain and phase-shift coefficients for an optical amplifier with Lorentzian lineshape function ...
... Figure 5.1-5 Spectral dependence of the gain and phase-shift coefficients for an optical amplifier with Lorentzian lineshape function ...
Planar Integrated Optical Waveguide Spectroscopy
... waveguiding technologies, such as fiber-optic-based communications, are widespread. Spectroscopists routinely use attenuated total reflection (ATR) to obtain FTIR spectra of thin films and the surfaces of bulk materials. The confinement of a light beam according to the principle of total internal re ...
... waveguiding technologies, such as fiber-optic-based communications, are widespread. Spectroscopists routinely use attenuated total reflection (ATR) to obtain FTIR spectra of thin films and the surfaces of bulk materials. The confinement of a light beam according to the principle of total internal re ...
fabrication, characterization and application of dispersive gradient
... phase” to form a transform limited pulse [5]. This means that the pulse is then travelling in a dispersive medium, and phase changes have to be compensated to maintain it short. Several different methods have been proposed over the years. Most of them are based on diffraction gratings [6], prism pai ...
... phase” to form a transform limited pulse [5]. This means that the pulse is then travelling in a dispersive medium, and phase changes have to be compensated to maintain it short. Several different methods have been proposed over the years. Most of them are based on diffraction gratings [6], prism pai ...
Beam manipulation: prisms vs. mirrors
... positioning issues and alignment complexity can quickly become worrisome. ...
... positioning issues and alignment complexity can quickly become worrisome. ...
Experimental demonstration of a light-ray-direction
... properties not usually observed in nature. Although they fit some definitions of metamaterials, METATOYs are not metamaterials in the usual sense, and they do not have wave-optical-metamaterial properties such as amplification of evanescent waves that can turn a sliver of negative-refractive-index m ...
... properties not usually observed in nature. Although they fit some definitions of metamaterials, METATOYs are not metamaterials in the usual sense, and they do not have wave-optical-metamaterial properties such as amplification of evanescent waves that can turn a sliver of negative-refractive-index m ...
3D optical data storage
3D optical data storage is the term given to any form of optical data storage in which information can be recorded and/or read with three-dimensional resolution (as opposed to the two-dimensional resolution afforded, for example, by CD).This innovation has the potential to provide petabyte-level mass storage on DVD-sized discs (120mm). Data recording and readback are achieved by focusing lasers within the medium. However, because of the volumetric nature of the data structure, the laser light must travel through other data points before it reaches the point where reading or recording is desired. Therefore, some kind of nonlinearity is required to ensure that these other data points do not interfere with the addressing of the desired point.No commercial product based on 3D optical data storage has yet arrived on the mass market, although several companies are actively developing the technology and claim that it may become available ""soon"".