ABSTRACT Dissertation: STUDIES OF
... plasma. A plasma is a neutral ionized gas. Electrons are free in the ionized medium. A plasmon is the quasi-particle resulting from the quantization of plasma oscillations. Plasmons are collective waves of the free electron gas density, which often occur at optical frequencies. A collective wave is ...
... plasma. A plasma is a neutral ionized gas. Electrons are free in the ionized medium. A plasmon is the quasi-particle resulting from the quantization of plasma oscillations. Plasmons are collective waves of the free electron gas density, which often occur at optical frequencies. A collective wave is ...
Switching between positive and negative
... into account as the plasma exhibits increasingly dielectric behavior. The optical modulation signal can be selected based on the bandgap and absorption spectra of the photoconductive material. The carrier generation can be as large as 1020 cm−3 , for a laser with a wavelength of 500 nm and an intens ...
... into account as the plasma exhibits increasingly dielectric behavior. The optical modulation signal can be selected based on the bandgap and absorption spectra of the photoconductive material. The carrier generation can be as large as 1020 cm−3 , for a laser with a wavelength of 500 nm and an intens ...
Comparison of two-color methods based on wavelength and
... The refractive index of air can significantly affect length measurements because the refractive index of air is a function of several air parameters such as temperature, pressure, humidity, and CO2 concentration. For example, when the temperature increases by 1◦ C, the optical length decreases by ap ...
... The refractive index of air can significantly affect length measurements because the refractive index of air is a function of several air parameters such as temperature, pressure, humidity, and CO2 concentration. For example, when the temperature increases by 1◦ C, the optical length decreases by ap ...
Laser ranging: a critical review of usual techniques
... onto an object and to process the reflected or scattered signal to determine the distance. If a high resolution rangefinder is needed, an optical source must be chosen because radio and ultrasonic waves cannot be focused adequately. In addition to absolute distance measurement, laser rangefinding de ...
... onto an object and to process the reflected or scattered signal to determine the distance. If a high resolution rangefinder is needed, an optical source must be chosen because radio and ultrasonic waves cannot be focused adequately. In addition to absolute distance measurement, laser rangefinding de ...
Demonstration of a large-scale optical exceptional point structure Liang Feng, Xuefeng Zhu,
... of non-absorbing transparent dielectric materials. Most recently, it has been suggested that the use of highly-absorbing dielectrics could result in intriguing optical phenomena [1]. If material losses are further designed intercorrelated with the index of refraction, unique optical functionalities ...
... of non-absorbing transparent dielectric materials. Most recently, it has been suggested that the use of highly-absorbing dielectrics could result in intriguing optical phenomena [1]. If material losses are further designed intercorrelated with the index of refraction, unique optical functionalities ...
Time-Delay Interferometry - Center for Gravitational Wave Physics
... from the two arms are combined at the detector any instability in the laser light is common and cancels exactly • Because of orbital dynamics, however, LISA will necessarily have unequal and time-variable arms lengths • In unequal arm length cases, signals from each arm return at different times. St ...
... from the two arms are combined at the detector any instability in the laser light is common and cancels exactly • Because of orbital dynamics, however, LISA will necessarily have unequal and time-variable arms lengths • In unequal arm length cases, signals from each arm return at different times. St ...
Full text
... Quantum Cascade Lasers (QCLs) have been the focus of much investigation over the past decade because of their many desirable properties. They can be operated in both continuous and pulsed mode with higher performance than traditional semiconductor lasers at the same wavelength. Pulsed operation can ...
... Quantum Cascade Lasers (QCLs) have been the focus of much investigation over the past decade because of their many desirable properties. They can be operated in both continuous and pulsed mode with higher performance than traditional semiconductor lasers at the same wavelength. Pulsed operation can ...
IMAGING WITH THZ PULSES TX 7725
... THz imaging is an emerging technology that permits threedimensional tomographic imaging of non-metallic objects. Numerous applications have been demonstrated where THz imaging could be a valuable complement to existing technologies for non-invasive testing, including the detection of faults or delam ...
... THz imaging is an emerging technology that permits threedimensional tomographic imaging of non-metallic objects. Numerous applications have been demonstrated where THz imaging could be a valuable complement to existing technologies for non-invasive testing, including the detection of faults or delam ...
Kogelnik and Li
... of apertures are neglected. The latter will be discussed in Section 4. The results derived here are applicable to optical systems with“large apertures,” i.e., with apertures that intercept only a negligible portion of the beam power. A theory of light beams or “beam waves” of this kind was first giv ...
... of apertures are neglected. The latter will be discussed in Section 4. The results derived here are applicable to optical systems with“large apertures,” i.e., with apertures that intercept only a negligible portion of the beam power. A theory of light beams or “beam waves” of this kind was first giv ...
Viewing Microstructures of Materials using the Optical Microscope
... the image due to the spherical nature of the lenses, and the chromatic aberration arises from the variation of refractive indices over the wide range of wavelengths found in visible light. One drawback of the optical microscope is the relatively small depth of field (also known as the depth of focus ...
... the image due to the spherical nature of the lenses, and the chromatic aberration arises from the variation of refractive indices over the wide range of wavelengths found in visible light. One drawback of the optical microscope is the relatively small depth of field (also known as the depth of focus ...
Optical Properties of Gold Nanorings
... associated electromagnetic field confinement effects in Au nanorings with radii of the order 60 nm. We emphasize the intrinsic surface plasmon resonances (SPR) of the rings, which are experimentally observed by recording the extinction spectra of disordered layers of identical nanoparticles deposi ...
... associated electromagnetic field confinement effects in Au nanorings with radii of the order 60 nm. We emphasize the intrinsic surface plasmon resonances (SPR) of the rings, which are experimentally observed by recording the extinction spectra of disordered layers of identical nanoparticles deposi ...
Optical Data Storage.pdf
... Writing by 2-photon absorption can also be achieved by the action of two lasers in coincidence. This method is typically used to achieve the parallel writing of information at once. One laser passes through the media, defining a line or plane. The second laser is then directed at the points on that ...
... Writing by 2-photon absorption can also be achieved by the action of two lasers in coincidence. This method is typically used to achieve the parallel writing of information at once. One laser passes through the media, defining a line or plane. The second laser is then directed at the points on that ...
