Full text - Simon Fraser University
... Two-dimensional materials, single-layer crystals of atomic thickness, including graphene and boron nitride, have attracted much interest in the last few decades. When electrons are confined to move in two dimensions, several extraordinary applications arise due to this physical effect. For example, th ...
... Two-dimensional materials, single-layer crystals of atomic thickness, including graphene and boron nitride, have attracted much interest in the last few decades. When electrons are confined to move in two dimensions, several extraordinary applications arise due to this physical effect. For example, th ...
Optical Resonators and Mode Matching
... This laboratory experiment is designed to explore the properties of an optical resonator; properties that are common to nearly every optical resonator. Furthermore it is designed to provide some experience in aligning an optical resonator and with getting laser light into an optical resonator –a pro ...
... This laboratory experiment is designed to explore the properties of an optical resonator; properties that are common to nearly every optical resonator. Furthermore it is designed to provide some experience in aligning an optical resonator and with getting laser light into an optical resonator –a pro ...
Recent advances in diffuse optical imaging
... techniques. CW sources have been used to investigate the head, testes and breast by viewing light which has been transmitted through the body since at least as far back as the early nineteenth century (Bright 1831, Curling 1843, Cutler 1929). CW transillumination of the breast (or ‘diaphanography’) ...
... techniques. CW sources have been used to investigate the head, testes and breast by viewing light which has been transmitted through the body since at least as far back as the early nineteenth century (Bright 1831, Curling 1843, Cutler 1929). CW transillumination of the breast (or ‘diaphanography’) ...
Quantitative spectroscopic photoacoustic imaging
... so that the whole tissue is flooded with light.18 An array of (ideally) omnidirectional point ultrasound detectors (or an array synthesized from many single-point measurements) is used to record the resulting PA waves. For the highest quality images, the array should enclose the object being imaged, ...
... so that the whole tissue is flooded with light.18 An array of (ideally) omnidirectional point ultrasound detectors (or an array synthesized from many single-point measurements) is used to record the resulting PA waves. For the highest quality images, the array should enclose the object being imaged, ...
Changes in spatial extent and peak double optical density of human
... macular degeneration [7–9]. Macular pigment optical density (MPOD) has been demonstrated to increase after diets rich in zeaxanthin and lutein [10–16]. Measurements of MPOD as a function of age have been carried out using different techniques. Some studies using fundus reflectance spectroscopy found ...
... macular degeneration [7–9]. Macular pigment optical density (MPOD) has been demonstrated to increase after diets rich in zeaxanthin and lutein [10–16]. Measurements of MPOD as a function of age have been carried out using different techniques. Some studies using fundus reflectance spectroscopy found ...
Optical Fiber Sensors Guide
... gratings were made in the fiber core by standing wave of 488nm argon laser light. The grating exposure in this case was shown to be a two-photon process. The field did not progress until 1989, when Gerry Meltz et al. [2] of United Technologies proposed that fiber gratings could be formed by exposure ...
... gratings were made in the fiber core by standing wave of 488nm argon laser light. The grating exposure in this case was shown to be a two-photon process. The field did not progress until 1989, when Gerry Meltz et al. [2] of United Technologies proposed that fiber gratings could be formed by exposure ...
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Optical fiber cables[edit]
... Daniel Colladon first described this “light fountain” or “light pipe” in an 1842 article titled On the reflections of a ray of light inside a parabolic liquid stream. This particular illustration comes from a later article by Colladon, in 1884. Fiber optics, though used extensively in the modern wor ...
... Daniel Colladon first described this “light fountain” or “light pipe” in an 1842 article titled On the reflections of a ray of light inside a parabolic liquid stream. This particular illustration comes from a later article by Colladon, in 1884. Fiber optics, though used extensively in the modern wor ...
A mobile, high-precision atom-interferometer and its
... (GAIN) project has been started to meet this requirement and to provide best possible accuracy at the same time. It aims to realize an alternative to other types of gravimeters and to combine important qualities such as high sensitivity and absolute accuracy in one instrument. The GAIN sensor is bas ...
... (GAIN) project has been started to meet this requirement and to provide best possible accuracy at the same time. It aims to realize an alternative to other types of gravimeters and to combine important qualities such as high sensitivity and absolute accuracy in one instrument. The GAIN sensor is bas ...
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS (G02F takes
... to the light guide is altered by the application of an external field are classified in G02F. Backlights characterised by the light guides for liquid crystal display panels are classified in G02B 6/0001 - G02B 6/0096. Light amplifying light guides are classified in H01S. Systems for communication ar ...
... to the light guide is altered by the application of an external field are classified in G02F. Backlights characterised by the light guides for liquid crystal display panels are classified in G02B 6/0001 - G02B 6/0096. Light amplifying light guides are classified in H01S. Systems for communication ar ...
Design of an Optical Position Sensor for Microfiber
... causes the electrical frequencies to fluctuate each of the oscillator circuits. A sensing controller in the circuit can correlate the differences at different places on the capacitive layer to detect and infer the point or points of contact and movement [18]. However, the range of the capacitive sen ...
... causes the electrical frequencies to fluctuate each of the oscillator circuits. A sensing controller in the circuit can correlate the differences at different places on the capacitive layer to detect and infer the point or points of contact and movement [18]. However, the range of the capacitive sen ...
Optical amplifier
An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from the cavity is suppressed. Optical amplifiers are important in optical communication and laser physics.There are several different physical mechanisms that can be used to amplify a light signal, which correspond to the major types of optical amplifiers. In doped fibre amplifiers and bulk lasers, stimulated emission in the amplifier's gain medium causes amplification of incoming light. In semiconductor optical amplifiers (SOAs), electron-hole recombination occurs. In Raman amplifiers, Raman scattering of incoming light with phonons in the lattice of the gain medium produces photons coherent with the incoming photons. Parametric amplifiers use parametric amplification.