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FIBER OPTICS
... reflection and are guided through the core without refraction. Rays of greater inclination to the fiber axis lose part of their power into the cladding at each reflection and are not guided. As a result of recent technological advances in fabrication, light can be guided through 1 km of glass fiber ...
... reflection and are guided through the core without refraction. Rays of greater inclination to the fiber axis lose part of their power into the cladding at each reflection and are not guided. As a result of recent technological advances in fabrication, light can be guided through 1 km of glass fiber ...
PASSION FOR PRECISION
... quantities such as length or voltage into a frequency in order to make accurate measurement. This is what my friend and mentor Arthur Schawlow at Stanford University had in mind when he advised his students: “Never measure anything but frequency!” Measuring a frequency, i.e. counting the number of c ...
... quantities such as length or voltage into a frequency in order to make accurate measurement. This is what my friend and mentor Arthur Schawlow at Stanford University had in mind when he advised his students: “Never measure anything but frequency!” Measuring a frequency, i.e. counting the number of c ...
fabrication, characterization and application of dispersive gradient
... rapidly in time, we need as short as possible light pulses, as they define time the resolution of our experiments or setups. Laser sources exceeding long pulses were a breakthrough [1, 2]. Only several decades had passed until the first ultrashort pulses were demonstrated using passive-mode synchron ...
... rapidly in time, we need as short as possible light pulses, as they define time the resolution of our experiments or setups. Laser sources exceeding long pulses were a breakthrough [1, 2]. Only several decades had passed until the first ultrashort pulses were demonstrated using passive-mode synchron ...
Optical Fabrication - University of Arizona
... Most optical fabrication processes begin with the extremely important consideration of holding onto the part during subsequent fabrication steps. Numerous factors must be considered when choosing the support method: part size, thickness, shape, expansion coefficient, and the direction and magnitude ...
... Most optical fabrication processes begin with the extremely important consideration of holding onto the part during subsequent fabrication steps. Numerous factors must be considered when choosing the support method: part size, thickness, shape, expansion coefficient, and the direction and magnitude ...
ABSTRACT Title of Document:
... hand, atmospheric attenuation is quite variable with losses of anywhere between 0.2 dB/km to 350 dB/km. This makes FSO links highly variable and unpredictable, usually making 99.999% availability difficult if not impossible for FSO links across any significant distance. One would normally think to ...
... hand, atmospheric attenuation is quite variable with losses of anywhere between 0.2 dB/km to 350 dB/km. This makes FSO links highly variable and unpredictable, usually making 99.999% availability difficult if not impossible for FSO links across any significant distance. One would normally think to ...
Biomedical Imaging and Applied Optics Laboratory
... More than 85% of all cancers originate in the epithelium that lines the internal surfaces of organs throughout the body. Before they become invasive, at stages known as dysplasia and carcinoma in situ, early cancer cells alter the epithelial-cell architecture. More specifically, the number of cells, ...
... More than 85% of all cancers originate in the epithelium that lines the internal surfaces of organs throughout the body. Before they become invasive, at stages known as dysplasia and carcinoma in situ, early cancer cells alter the epithelial-cell architecture. More specifically, the number of cells, ...
INTRODUCTION ...
... and either gain or lose kinetic energy. In this it is conceptually very similar to Raman scattering, but there are significant differences. The major difference is that photons (electromagnetic radiation) interact primarily with the electrons of a sample, while neutrons interact with the nuclei. The ...
... and either gain or lose kinetic energy. In this it is conceptually very similar to Raman scattering, but there are significant differences. The major difference is that photons (electromagnetic radiation) interact primarily with the electrons of a sample, while neutrons interact with the nuclei. The ...
workshop on laser-matter interaction 2010
... It is a real pleasure to welcome you to this second edition of the Workshop on Laser-Matter Interaction. After Luminy in 2008, we are pleased to see that this meeting is growing in size, becoming international, and attracting new generations of scientists. This second international edition will hope ...
... It is a real pleasure to welcome you to this second edition of the Workshop on Laser-Matter Interaction. After Luminy in 2008, we are pleased to see that this meeting is growing in size, becoming international, and attracting new generations of scientists. This second international edition will hope ...
Mirror contamination in space I: mirror modelling
... orbit, it became clear that the transmission loss or degradation is dependent on the scan angle (of the scan mirror) (Krijger et al., 2005b; Tilstra et al., 2012). This has been referred to as the scan-angle-dependent degradation. This problem is becoming more pressing with the increasing number of ...
... orbit, it became clear that the transmission loss or degradation is dependent on the scan angle (of the scan mirror) (Krijger et al., 2005b; Tilstra et al., 2012). This has been referred to as the scan-angle-dependent degradation. This problem is becoming more pressing with the increasing number of ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... Zinc oxide (ZnO) is a semiconductor compound of the II-VI family, with wide and direct band gap of (3.37 eV) and large exiton binding energy (60 meV) at room temperature in the ultraviolet (UV) range[1]. ZnO has a great potential for applications in short wavelength optoelectronics, laser, detectors ...
... Zinc oxide (ZnO) is a semiconductor compound of the II-VI family, with wide and direct band gap of (3.37 eV) and large exiton binding energy (60 meV) at room temperature in the ultraviolet (UV) range[1]. ZnO has a great potential for applications in short wavelength optoelectronics, laser, detectors ...
Controlled Variables: Psychology as the Center Fielder Views It
... (Marken, 1993; Powers, 1973b). For example, the apparent cause-effect relationship between window opening and furnace actuating does not reveal the fact that the thermostat is controlling room temperature. The same cause-effect relationship would be seen if the thermostat were controlling some other ...
... (Marken, 1993; Powers, 1973b). For example, the apparent cause-effect relationship between window opening and furnace actuating does not reveal the fact that the thermostat is controlling room temperature. The same cause-effect relationship would be seen if the thermostat were controlling some other ...
Quadrature phase-shift error analysis using a homodyne laser
... Detection methods based on two or more signals in phase quadrature allow nano-resolution and high-dynamic-range displacement measurements with a constant sensitivity [1]. The quadrature signals can be obtained in various laser interferometers [2–5] as well as in other types of displacement-measuring ...
... Detection methods based on two or more signals in phase quadrature allow nano-resolution and high-dynamic-range displacement measurements with a constant sensitivity [1]. The quadrature signals can be obtained in various laser interferometers [2–5] as well as in other types of displacement-measuring ...
Direct observation of light focusing by single photoreceptor cell nuclei
... of the light sensitive cells called photoreceptors to show that these segments act as optical fibres [6–8]. The description of the outer segments as optical fibres then seemed to rationalise the curious directional sensitivity of the retina known as the Stiles-Crawford effect [9, 10]. Such an optimi ...
... of the light sensitive cells called photoreceptors to show that these segments act as optical fibres [6–8]. The description of the outer segments as optical fibres then seemed to rationalise the curious directional sensitivity of the retina known as the Stiles-Crawford effect [9, 10]. Such an optimi ...
Silicon photonics
Silicon photonics is the study and application of photonic systems which use silicon as an optical medium. The silicon is usually patterned with sub-micrometre precision, into microphotonic components. These operate in the infrared, most commonly at the 1.55 micrometre wavelength used by most fiber optic telecommunication systems. The silicon typically lies on top of a layer of silica in what (by analogy with a similar construction in microelectronics) is known as silicon on insulator (SOI).Silicon photonic devices can be made using existing semiconductor fabrication techniques, and because silicon is already used as the substrate for most integrated circuits, it is possible to create hybrid devices in which the optical and electronic components are integrated onto a single microchip. Consequently, silicon photonics is being actively researched by many electronics manufacturers including IBM and Intel, as well as by academic research groups such as that of Prof. Michal Lipson, who see it is a means for keeping on track with Moore's Law, by using optical interconnects to provide faster data transfer both between and within microchips.The propagation of light through silicon devices is governed by a range of nonlinear optical phenomena including the Kerr effect, the Raman effect, two photon absorption and interactions between photons and free charge carriers. The presence of nonlinearity is of fundamental importance, as it enables light to interact with light, thus permitting applications such as wavelength conversion and all-optical signal routing, in addition to the passive transmission of light.Silicon waveguides are also of great academic interest, due to their ability to support exotic nonlinear optical phenomena such as soliton propagation.