High speed hybrid silicon evanescent Mach
... In order to introduce the necessary phase change inside the Mach-Zehnder interferometer for both the hybrid silicon modulator and switch, a III-V epitaxial wafer with doped QW and separate confinement heterostructure (SCH) layer [8] is bonded to patterned silicon waveguides. For such a structure wit ...
... In order to introduce the necessary phase change inside the Mach-Zehnder interferometer for both the hybrid silicon modulator and switch, a III-V epitaxial wafer with doped QW and separate confinement heterostructure (SCH) layer [8] is bonded to patterned silicon waveguides. For such a structure wit ...
Julie Cass - Stanford University
... spectrometer design, disagreements between the measured beam sizes and those calculated in the MATLAB simulation were anticipated due to limitations in the precision aligning of optics. We wished to determine the spectrometer tolerances achievable considering these limitations. For a more accurate r ...
... spectrometer design, disagreements between the measured beam sizes and those calculated in the MATLAB simulation were anticipated due to limitations in the precision aligning of optics. We wished to determine the spectrometer tolerances achievable considering these limitations. For a more accurate r ...
Optical Properties of Gold Nanorings
... integrals. In Fig. 2(b), the calculated extinction cross sections are plotted vs for disks (d) and for rings of different thickness as in the experiments (r1 to r3 ). The agreement between experiment and theory is excellent, both in terms of the peak positions and in the absolute and relative weig ...
... integrals. In Fig. 2(b), the calculated extinction cross sections are plotted vs for disks (d) and for rings of different thickness as in the experiments (r1 to r3 ). The agreement between experiment and theory is excellent, both in terms of the peak positions and in the absolute and relative weig ...
b. optical wave breaking in the pcf
... The SPM-induced chirp add to the GVD-induced chirp, as a result, the composite chirp is still nonlinear. Because of the nonlinear composite chirp, different parts of the pulse propagate at different speeds. Since the fiber exhibits normal dispersions at all wavelengths, the faster tail eventually ov ...
... The SPM-induced chirp add to the GVD-induced chirp, as a result, the composite chirp is still nonlinear. Because of the nonlinear composite chirp, different parts of the pulse propagate at different speeds. Since the fiber exhibits normal dispersions at all wavelengths, the faster tail eventually ov ...
lensed fiber
... Single-mode, PM, multimode, double-clad, PCF, POF, IR fibers with/without optical connectors Shape of the fiber end: cone (1). tapered cone (2), wedge(3), angled tip wedge (4), cone with flat top (5), ball (6), ball with large working distance (7), angled ball with large working distance and integra ...
... Single-mode, PM, multimode, double-clad, PCF, POF, IR fibers with/without optical connectors Shape of the fiber end: cone (1). tapered cone (2), wedge(3), angled tip wedge (4), cone with flat top (5), ball (6), ball with large working distance (7), angled ball with large working distance and integra ...
Instructional Software for Visualizing Optical Phenomena
... factor of 100). The intensity of the light is plotted as a height function whose central peak corresponds to maximum brightness at the observation screen. Right: geometric optics module. Distributions of rays at the source (on the left) are imaged onto the observation screen (on the right) after the ...
... factor of 100). The intensity of the light is plotted as a height function whose central peak corresponds to maximum brightness at the observation screen. Right: geometric optics module. Distributions of rays at the source (on the left) are imaged onto the observation screen (on the right) after the ...
MEMS for micro optics: from fiber optic communication to display
... released by selectively removing the silicon oxide in the hydrofluoric acid. As a result, MEMS scanner was made in a 2 mm by 3 mm chip as shown in Figure 5. The mirror is 600 microns in diameter, and the actuator plate on the side is 80 microns by 400 microns each. The supporting hinges were designe ...
... released by selectively removing the silicon oxide in the hydrofluoric acid. As a result, MEMS scanner was made in a 2 mm by 3 mm chip as shown in Figure 5. The mirror is 600 microns in diameter, and the actuator plate on the side is 80 microns by 400 microns each. The supporting hinges were designe ...
ULTRAFAST MEASUREMENT OF THE OPTICAL
... heated gold. In both experiments, changes in the optical properties of the materials are observed and in the case of gold, we attribute the changes to melt, hinting at the possibility of observing shockinduced phase changes with these techniques. ...
... heated gold. In both experiments, changes in the optical properties of the materials are observed and in the case of gold, we attribute the changes to melt, hinting at the possibility of observing shockinduced phase changes with these techniques. ...
Optical Fibre Communications
... availability of suitable low-loss dielectric material. The crucial material problem appears ...difficult but not impossible. Certainly, the required loss figure of around 20 dB/km is much higher than the lower limit of loss ...
... availability of suitable low-loss dielectric material. The crucial material problem appears ...difficult but not impossible. Certainly, the required loss figure of around 20 dB/km is much higher than the lower limit of loss ...
Paper
... layer inserted under the collector to improve the waveguiding properties of the device (0.74 A/W for TM), in fig. 1b light coupled to the substrate is reduced. Even more efficient light collection can be achieved with a modified structure: - first the absorbing layer should be thicker (0.5 µm) and t ...
... layer inserted under the collector to improve the waveguiding properties of the device (0.74 A/W for TM), in fig. 1b light coupled to the substrate is reduced. Even more efficient light collection can be achieved with a modified structure: - first the absorbing layer should be thicker (0.5 µm) and t ...
IOSR Journal of Humanities and Social Science (JHSS)
... artworks in this paper, that the technology is able to enter deeply even in the more things humanitarian(Art), influence it, and vulnerability by it, hence produces a works of art intensive in its concept, distinctive in its shape, new of its kind, and interacts with the time and place. Therefor we ...
... artworks in this paper, that the technology is able to enter deeply even in the more things humanitarian(Art), influence it, and vulnerability by it, hence produces a works of art intensive in its concept, distinctive in its shape, new of its kind, and interacts with the time and place. Therefor we ...
Selective photodissociation of tailored molecular - Beilstein
... interferometry to demonstrate the quantum wave nature of more than a dozen of different molecules and clusters [10-16], up to tailored porphyrin derivatives as massive as 10 kDa [17]. In these experiments, every single molecule contained 810 atoms and yet it still needed to be described by a quantum ...
... interferometry to demonstrate the quantum wave nature of more than a dozen of different molecules and clusters [10-16], up to tailored porphyrin derivatives as massive as 10 kDa [17]. In these experiments, every single molecule contained 810 atoms and yet it still needed to be described by a quantum ...
Three Lasers Converging at a Focal Point : A Demonstration
... 3. Now replace the glass block with the positive lens. Two things to note here: The center laser beam needs to go through the center of the lens, and the set up should have the screen placed at a distance away from the laser such that the three spots are similar in appearance as they were for the gl ...
... 3. Now replace the glass block with the positive lens. Two things to note here: The center laser beam needs to go through the center of the lens, and the set up should have the screen placed at a distance away from the laser such that the three spots are similar in appearance as they were for the gl ...
Full Text PDF
... host have been published by a number of authors (see [2, 3] and references tħerein). In most of these calculations the metallic spheres are approximated by dipoles, with a Drude-type polarisability, leading to an effective dielectric function for the composite medium via the Clausius—Mossotti equati ...
... host have been published by a number of authors (see [2, 3] and references tħerein). In most of these calculations the metallic spheres are approximated by dipoles, with a Drude-type polarisability, leading to an effective dielectric function for the composite medium via the Clausius—Mossotti equati ...
2.2 Basic Optical Laws and Definitions
... ¾ Two methods to theoretically study the propagation characteristics of light in an optical fiber : Ray-tracing approach; Mode Theory (Maxwell’ equations) ¾ Ray-tracing approach provides a good approximation to light acceptance and guiding properties of optical fiber when the ratio of fiber radius t ...
... ¾ Two methods to theoretically study the propagation characteristics of light in an optical fiber : Ray-tracing approach; Mode Theory (Maxwell’ equations) ¾ Ray-tracing approach provides a good approximation to light acceptance and guiding properties of optical fiber when the ratio of fiber radius t ...
Chapter 12: Optical Communications
... receiver considered above. If this room-link receiver were isotropic and intercepted only a single mode, its effective area Ae given by (12.1.2) would be 2×10-14 [m2]. The tiny effective area of such low-gain coherent optical antennas motivates use of incoherent photodetectors instead, which respond ...
... receiver considered above. If this room-link receiver were isotropic and intercepted only a single mode, its effective area Ae given by (12.1.2) would be 2×10-14 [m2]. The tiny effective area of such low-gain coherent optical antennas motivates use of incoherent photodetectors instead, which respond ...
Reports for the two projects on Bisosensors have been combined
... Biosensing in the Terahertz (THz) and Mid-Infrared (MIR) frequency range opens up a large field of scientific and application prospects, such as the detection and identification of biological and chemical substances [1]. Biomolecules such as DNA strands can be identified by monitoring their binding ...
... Biosensing in the Terahertz (THz) and Mid-Infrared (MIR) frequency range opens up a large field of scientific and application prospects, such as the detection and identification of biological and chemical substances [1]. Biomolecules such as DNA strands can be identified by monitoring their binding ...
SM - AIP FTP Server
... Figure 2 of this Supplementary Material shows calibrated spectra of a disk mechanical motion, obtained at different optical powers using the optomechanical measurement presented in the main article. For clarity, the contribution from the laser shot-noise is removed here to let the mechanical displac ...
... Figure 2 of this Supplementary Material shows calibrated spectra of a disk mechanical motion, obtained at different optical powers using the optomechanical measurement presented in the main article. For clarity, the contribution from the laser shot-noise is removed here to let the mechanical displac ...
Imaging properties of supercritical angle
... given optical system. When dealing with imaging of non-coherent fluorescent sources, this is equivalent to calculating the image of single dipole emitters as a function of their position in sample space. For aplanatic optical systems with high numerical aperture, an exact wave-optical approach for c ...
... given optical system. When dealing with imaging of non-coherent fluorescent sources, this is equivalent to calculating the image of single dipole emitters as a function of their position in sample space. For aplanatic optical systems with high numerical aperture, an exact wave-optical approach for c ...
A History of Imaging
... of signal processing. As indicated by the quantum imaging example, electronics and signal processing offer new dimensions in imaging that were not previously thought possible. The potential for advances in digital imaging is often referenced to Moore’s Law—that the number of transistors per area in a ...
... of signal processing. As indicated by the quantum imaging example, electronics and signal processing offer new dimensions in imaging that were not previously thought possible. The potential for advances in digital imaging is often referenced to Moore’s Law—that the number of transistors per area in a ...
Use of Broadband, Continuous-Wave Diode Lasers in Cavity Ring
... than more complicated tting routines.4 Absorption linewidths in the gas phase are typically 0.1 cm 2 1 or narrower, so a very narrow linewidth laser is necessary. Typical light sources used for gas-phase CRDS are thus either expensive pulsed lasers or very narrowband, continuous-wave (cw) diode la ...
... than more complicated tting routines.4 Absorption linewidths in the gas phase are typically 0.1 cm 2 1 or narrower, so a very narrow linewidth laser is necessary. Typical light sources used for gas-phase CRDS are thus either expensive pulsed lasers or very narrowband, continuous-wave (cw) diode la ...
Optical tweezers
Optical tweezers (originally called ""single-beam gradient force trap"") are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch to physically hold and move microscopic dielectric objects similar to tweezers. Optical tweezers have been particularly successful in studying a variety of biological systems in recent years.