Ultrashort free-carrier lifetime in low-loss silicon
... silicon microring resonators,” Appl. Phys. Lett. 92(15), 151104 (2008). 44. T. J. Johnson, and O. J. Painter, “Passive Modification of Free Carrier Lifetime in High-Q Silicon-on-Insulator Optics,” in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical ...
... silicon microring resonators,” Appl. Phys. Lett. 92(15), 151104 (2008). 44. T. J. Johnson, and O. J. Painter, “Passive Modification of Free Carrier Lifetime in High-Q Silicon-on-Insulator Optics,” in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical ...
Modeling and simulation of surface profile forming process of
... focal length often requires syringe pump and pressure sensor connected to the microlenses. It adds the complexity of the device, especially for array structure. In addition, they are normally fabricated piece by piece, not very suitable for batch fabrication. UV lithography of SU-8 has been widely u ...
... focal length often requires syringe pump and pressure sensor connected to the microlenses. It adds the complexity of the device, especially for array structure. In addition, they are normally fabricated piece by piece, not very suitable for batch fabrication. UV lithography of SU-8 has been widely u ...
Zemax, LLC Getting Started With OpticStudio 16
... software, the Zemax License Manager (ZLM). A dialog box may also ask for your permission to modify the firewall settings of your computer to allow remote users of your computer to run OpticStudio using Remote Desktop. If you want to authorize this, click "Yes", otherwise click "No". To change this s ...
... software, the Zemax License Manager (ZLM). A dialog box may also ask for your permission to modify the firewall settings of your computer to allow remote users of your computer to run OpticStudio using Remote Desktop. If you want to authorize this, click "Yes", otherwise click "No". To change this s ...
Left-Right Ambiguity Resolution of a Towed Array Sonar
... beamformer (see section 1.2.4) and the beam pattern is formed (see section 1.2.4.3). Acoustic data from the array will often be used over several octaves in frequency. If an array of length L = 750m is used, then at frequency of 100Hz we have λ = 15m so λ/L = 1/50. Despite the fact that sound at 50H ...
... beamformer (see section 1.2.4) and the beam pattern is formed (see section 1.2.4.3). Acoustic data from the array will often be used over several octaves in frequency. If an array of length L = 750m is used, then at frequency of 100Hz we have λ = 15m so λ/L = 1/50. Despite the fact that sound at 50H ...
Wavelength Converter Technology
... Wavelength converters will be placed in the network nodes where they can be operated with either a fixed input wavelength and a variable output wavelength or a variable input and a fixed output wavelength. Only special cases will require variable in- and output wavelengths at the same time. A conver ...
... Wavelength converters will be placed in the network nodes where they can be operated with either a fixed input wavelength and a variable output wavelength or a variable input and a fixed output wavelength. Only special cases will require variable in- and output wavelengths at the same time. A conver ...
Modeling Light Scattering in Tissue as Continuous Random Media
... the diffraction limit (about half the wavelength). Some very clever techniques have been developed to sidestep this issue, including STED, STORM, and other super resolution methods [1]. These methods enable imaging or reconstruction of extraordinary detail, but typically require contrast agents and ...
... the diffraction limit (about half the wavelength). Some very clever techniques have been developed to sidestep this issue, including STED, STORM, and other super resolution methods [1]. These methods enable imaging or reconstruction of extraordinary detail, but typically require contrast agents and ...
Color-changing and color-tunable photonic bandgap fiber textiles
... and polymer-based PBG fibers [42] are now available and can be used for textile applications. At this point, however, the cost of textiles based on such fibers would be prohibitively high as the price of such fibers ranges in hundreds of dollars per meter due to complexity of their fabrication. We b ...
... and polymer-based PBG fibers [42] are now available and can be used for textile applications. At this point, however, the cost of textiles based on such fibers would be prohibitively high as the price of such fibers ranges in hundreds of dollars per meter due to complexity of their fabrication. We b ...
Inducing and Controlling Particle Motion in an Optical Trap
... As outlined previously, optical trapping has been shown to be an effective tool for controlling micro- and nanoscale particles [22]. Stable three dimensional optical trapping of individual microscale plasmonic Janus particles, however, has been challenging for most geometries. This is due to strong ...
... As outlined previously, optical trapping has been shown to be an effective tool for controlling micro- and nanoscale particles [22]. Stable three dimensional optical trapping of individual microscale plasmonic Janus particles, however, has been challenging for most geometries. This is due to strong ...
Investigation of the presence of rod-shaped bacteria on food surface
... emit photons for detection. Historically, most of the optics-based quality control of the produce was targeted at discriminating the firmness or sugar content using single wavelength [19-22] or multi-spectral methods [2329] rather than directly detecting the source of the contamination. Recently, so ...
... emit photons for detection. Historically, most of the optics-based quality control of the produce was targeted at discriminating the firmness or sugar content using single wavelength [19-22] or multi-spectral methods [2329] rather than directly detecting the source of the contamination. Recently, so ...
Digital Signal Processing for Optical Coherent Communication
... Since 2007, coherent detection has been considered as the key technology of optical communication systems [2]. Major challenge for future optical transmission systems is the strict frequency band usage limitation, which is measured by spectral efficiency (SE). In order to improve spectral efficiency ...
... Since 2007, coherent detection has been considered as the key technology of optical communication systems [2]. Major challenge for future optical transmission systems is the strict frequency band usage limitation, which is measured by spectral efficiency (SE). In order to improve spectral efficiency ...
Relation between nonlinear refractive index and
... communication networks1 in which ultrafast switching, signal regeneration, and high-speed demultiplexing would be performed all-optically through the use of thirdorder optical nonlinearities. Thus, in recent years, thirdorder nonlinearities have been studied experimentally in a large variety of arti ...
... communication networks1 in which ultrafast switching, signal regeneration, and high-speed demultiplexing would be performed all-optically through the use of thirdorder optical nonlinearities. Thus, in recent years, thirdorder nonlinearities have been studied experimentally in a large variety of arti ...
Applications of spatial light modulators for optical trapping and
... Using a special object chamber, which provides an almost flat air-liquid interface, we demonstrate the versatility of HOT by different experiments. For instance, we demonstrate efficient transfer of orbital angular momentum from specific SLM generated light modes to matter. The resulting fast rotat ...
... Using a special object chamber, which provides an almost flat air-liquid interface, we demonstrate the versatility of HOT by different experiments. For instance, we demonstrate efficient transfer of orbital angular momentum from specific SLM generated light modes to matter. The resulting fast rotat ...
Adaptive Speckle Imaging Interferometry, a new technique for a
... insufficient time-averaging [6]. In the cell-scanning technique [7] and the two cells technique [8] (or its rotating-frosty-glass variant [9]) a point-like detector is illuminated sequentially by different speckles, either by scanning the beam through the sample or by “scrambling” the scattered phot ...
... insufficient time-averaging [6]. In the cell-scanning technique [7] and the two cells technique [8] (or its rotating-frosty-glass variant [9]) a point-like detector is illuminated sequentially by different speckles, either by scanning the beam through the sample or by “scrambling” the scattered phot ...
Various Indoor OFDM Optical Wireless Communication Systems and
... (OFDM) uses a large number of parallel narrowband subcarriers instead of a single wide-band carrier to transport information .In wireless communication short range-communication is one of the most important field. Now a days a large scale of research and developments are progressing with the increme ...
... (OFDM) uses a large number of parallel narrowband subcarriers instead of a single wide-band carrier to transport information .In wireless communication short range-communication is one of the most important field. Now a days a large scale of research and developments are progressing with the increme ...
Experimental approach to transverse wave
... PBS2, PM3, PM2, and the crystal is held on a rigid and stable Invar plate which is also shielded from air currents so that the optical path difference between active and stabilization resonators is kept constant except for small drifts. The stability of the system is very good, although in rare occa ...
... PBS2, PM3, PM2, and the crystal is held on a rigid and stable Invar plate which is also shielded from air currents so that the optical path difference between active and stabilization resonators is kept constant except for small drifts. The stability of the system is very good, although in rare occa ...
Chapter 5 Experimental Apparatus II
... to suppression of the absorption of rescattered light in the MOT. The second-hand absorption of photons that have already been spontaneously scattered by MOT atoms, or “radiation trapping,” leads to temperature and density limitations in free-space MOTs [Sesko91; Ellinger94]. These rescattering even ...
... to suppression of the absorption of rescattered light in the MOT. The second-hand absorption of photons that have already been spontaneously scattered by MOT atoms, or “radiation trapping,” leads to temperature and density limitations in free-space MOTs [Sesko91; Ellinger94]. These rescattering even ...
Polarization of Light: from Basics to Instruments
... • Instead of cutting out one polarization and keeping the other one (polaroid), split the 2 polarization states and keep them both • Use a Wollaston prism as an analyzer • Disadvantages: need 2 detectors (PMTs, APDs) or an array; end up with 2 ‘pixels’ with different gain • Solution: rotate the Woll ...
... • Instead of cutting out one polarization and keeping the other one (polaroid), split the 2 polarization states and keep them both • Use a Wollaston prism as an analyzer • Disadvantages: need 2 detectors (PMTs, APDs) or an array; end up with 2 ‘pixels’ with different gain • Solution: rotate the Woll ...
Fiber-based optical parametric amplifiers and their applications
... P. A. Andrekson is with Chalmers University of Technology, SE-412 96 Göteborg, Sweden and also with CENiX Inc., Allentown, PA 18106 USA. M. Westlund and P.-O. Hedekvist are with Chalmers University of Technology, SE-412 96 Göteborg, Sweden. J. Li is with Chalmers University of Technology, SE-412 96 ...
... P. A. Andrekson is with Chalmers University of Technology, SE-412 96 Göteborg, Sweden and also with CENiX Inc., Allentown, PA 18106 USA. M. Westlund and P.-O. Hedekvist are with Chalmers University of Technology, SE-412 96 Göteborg, Sweden. J. Li is with Chalmers University of Technology, SE-412 96 ...
Method and apparatus for gas discharge laser output light
... suring the bandWidths of an output laser beam comprising output laser light in the range of beloW 500 femtometers at accuracies Within tens of femtometers. The homogeniZer may comprise a rotating diffuser Which may be a ground glass diffuser Which may also be etched. The Wavemeter may also comprise ...
... suring the bandWidths of an output laser beam comprising output laser light in the range of beloW 500 femtometers at accuracies Within tens of femtometers. The homogeniZer may comprise a rotating diffuser Which may be a ground glass diffuser Which may also be etched. The Wavemeter may also comprise ...
Director of laser and plasma research center, University of Baghdad
... 13- Effect of N2 laser flounce on Lactic acid production by Streptococcus thermopiles, Iraqi J. Laser, part B, Vol. 1, No. 1, (2002), pp. (55-62). 14- Lasing line excitation mechanism in hollow cathode plasma. Iraqi J.Sci, Vol.43-c, No.1, 2002. 15- Fluorescence lifetime measurement of C6H6 and C6D6, ...
... 13- Effect of N2 laser flounce on Lactic acid production by Streptococcus thermopiles, Iraqi J. Laser, part B, Vol. 1, No. 1, (2002), pp. (55-62). 14- Lasing line excitation mechanism in hollow cathode plasma. Iraqi J.Sci, Vol.43-c, No.1, 2002. 15- Fluorescence lifetime measurement of C6H6 and C6D6, ...
An Introduction to Pulsed Dye Lasers Introduction Light amplification
... dye laser, operate on a "three level system". In this case laser emission occurs to another excited state and not the ground state. The common red He-Ne laser operates by exciting He atoms that then transfer their energy during collisions into an excited state of the Ne atom (Figure 3). Laser emissi ...
... dye laser, operate on a "three level system". In this case laser emission occurs to another excited state and not the ground state. The common red He-Ne laser operates by exciting He atoms that then transfer their energy during collisions into an excited state of the Ne atom (Figure 3). Laser emissi ...
PCF Based Sensor with High Sensitivity, High
... typically consists of a transparent core surrounded by cladding of lower refractive index (air holes). The light is retained inside the core based on the total internal reflection, however the internally reflected light actually penetrates, for a small distance, into the cladding region. In an evane ...
... typically consists of a transparent core surrounded by cladding of lower refractive index (air holes). The light is retained inside the core based on the total internal reflection, however the internally reflected light actually penetrates, for a small distance, into the cladding region. In an evane ...