Design of a video interface controller for color sequential liquid
... one of the many optical devices or materials that change the state of polarization state of the light propagating inside these types of plates. The half wave plate used to rotate the polarization state of a polarized light which has a phase retardation of Γ=π, rotates polarization of a linearly pola ...
... one of the many optical devices or materials that change the state of polarization state of the light propagating inside these types of plates. The half wave plate used to rotate the polarization state of a polarized light which has a phase retardation of Γ=π, rotates polarization of a linearly pola ...
Magnetic hyperbolic optical metamaterials ARTICLE
... (emissivity). The unpolarized portion of emission is shown in grey, whereas the total emissivity is shown in orange above the unpolarized part. Line represents the corresponding theoretical calculation for the total emissivity. (b–d) Experimentally measured directionality of thermal emissivity at wa ...
... (emissivity). The unpolarized portion of emission is shown in grey, whereas the total emissivity is shown in orange above the unpolarized part. Line represents the corresponding theoretical calculation for the total emissivity. (b–d) Experimentally measured directionality of thermal emissivity at wa ...
Single Longitudinal Mode Blue-Violet Laser Diode for Data Storage
... longitudinal modes and have thus a sub-millimeter coherence length. Optical data storage technologies requiring coherent interference, such as holographic e.g., will benefit from having a compact blue-violet laser diode source with a long coherence length and some level of wavelength tuning. Prior a ...
... longitudinal modes and have thus a sub-millimeter coherence length. Optical data storage technologies requiring coherent interference, such as holographic e.g., will benefit from having a compact blue-violet laser diode source with a long coherence length and some level of wavelength tuning. Prior a ...
Long-distance vision
... example of such a hybrid cable solution is provided by the Fibreco Telecommunications network which links together the major cities of South Africa. The network, which stretches over a total distance of 12,000km, includes a 2,000-km link between Johannesburg and Cape Town connecting Bloemfontein, Ea ...
... example of such a hybrid cable solution is provided by the Fibreco Telecommunications network which links together the major cities of South Africa. The network, which stretches over a total distance of 12,000km, includes a 2,000-km link between Johannesburg and Cape Town connecting Bloemfontein, Ea ...
Mode selective fiber Bragg gratings
... However, many high power fiber laser systems rely on large mode area (LMA) fibers. FBG inscription by conventional means is challenging here, because for large, actively doped fiber cores, the necessary prior photo sensitivity treatment comes to its limits. Additionally, fibers with larger core diameter ...
... However, many high power fiber laser systems rely on large mode area (LMA) fibers. FBG inscription by conventional means is challenging here, because for large, actively doped fiber cores, the necessary prior photo sensitivity treatment comes to its limits. Additionally, fibers with larger core diameter ...
Customer-Made 3×3 Polymer Optical Fiber Splitter Based on Green
... glass is also used as a medium of data transmission. But it’s characteristic of having a small diameter cause the optical fiber glass to be not flexible. In addition, the installation of optical fiber glass requires a special handling and care, thus resulting in high installation cost. However, it c ...
... glass is also used as a medium of data transmission. But it’s characteristic of having a small diameter cause the optical fiber glass to be not flexible. In addition, the installation of optical fiber glass requires a special handling and care, thus resulting in high installation cost. However, it c ...
Spectral Domain Optical Coherence Tomography
... bandwidths enable axial resolutions better than standard SLD,14 the principal disadvantage of the current femtosecond titanium-sapphire laser technology is still its high cost and complexity, which currently precludes its widespread clinical use.2 A more fundamental limitation of this current ultra- ...
... bandwidths enable axial resolutions better than standard SLD,14 the principal disadvantage of the current femtosecond titanium-sapphire laser technology is still its high cost and complexity, which currently precludes its widespread clinical use.2 A more fundamental limitation of this current ultra- ...
Subwavelength-diameter silica wires for low
... uniformity of diameter. Light can be launched into these wires by optical evanescent coupling. The wires allow single-mode operation, and have an optical loss of less than 0.1 dB mm21. We believe that these wires provide promising building blocks for future microphotonic devices with subwavelength-w ...
... uniformity of diameter. Light can be launched into these wires by optical evanescent coupling. The wires allow single-mode operation, and have an optical loss of less than 0.1 dB mm21. We believe that these wires provide promising building blocks for future microphotonic devices with subwavelength-w ...
... Analysis has been done for comparison the atmospheric turbulence effect between two classical methods, Rytov approximation and Andrews's method. The SNR was calculated for not weak turbulence employing Tailor series at different strength of scintillation. These calculations run for communications of ...
Micro- and Nanotechnologies for Optical Neural Interfaces
... obtained by top-down fabrication process (Zorzos et al., 2010), with aluminum-coated multiple silicon oxynitride waveguides ending with corner mirrors to direct light laterally with respect to the implant direction. Each waveguide was coupled to external sources with single mode fibers, for overall ...
... obtained by top-down fabrication process (Zorzos et al., 2010), with aluminum-coated multiple silicon oxynitride waveguides ending with corner mirrors to direct light laterally with respect to the implant direction. Each waveguide was coupled to external sources with single mode fibers, for overall ...
Suppression of optical damage at 532 nm in
... Lithium niobate (LN) is one of the most technologically important optical ferroelectrics used in a wide variety of applications including highly efficient periodically poled nonlinear waveguides, optical modulators, Q- switches, and beam deflectors [1–3]. With a wide transparency range, LN seems lik ...
... Lithium niobate (LN) is one of the most technologically important optical ferroelectrics used in a wide variety of applications including highly efficient periodically poled nonlinear waveguides, optical modulators, Q- switches, and beam deflectors [1–3]. With a wide transparency range, LN seems lik ...
Get
... with stretching and dying process so that protection films are required at one side of the PVA film. The conventional protection film applies a tri-acetyle cellulous (TAC) because of optically zero retardation and reliability; however, it is highly expensive. In order to reduce the polarizer cost, a ...
... with stretching and dying process so that protection films are required at one side of the PVA film. The conventional protection film applies a tri-acetyle cellulous (TAC) because of optically zero retardation and reliability; however, it is highly expensive. In order to reduce the polarizer cost, a ...
Beyond Optical Molasses: 3D Raman Sideband Cooling of Atomic Cesium to High Phase-Space Density.
... initially polarized in the F 苷 3, mF 苷 3 ground state in a high-lying vibrational level n of the lattice. A small magnetic field is used to bring this state jF 苷 3, mF 苷 3; n典 into degeneracy with j3, 2; n 2 1典 and j3, 1; n 2 2典. Twophoton degenerate Raman transitions induce a coupling between these ...
... initially polarized in the F 苷 3, mF 苷 3 ground state in a high-lying vibrational level n of the lattice. A small magnetic field is used to bring this state jF 苷 3, mF 苷 3; n典 into degeneracy with j3, 2; n 2 1典 and j3, 1; n 2 2典. Twophoton degenerate Raman transitions induce a coupling between these ...
INTEGRATED OPTOELECTRONICS
... Diffraction of light ..................................................................................... 20 ...
... Diffraction of light ..................................................................................... 20 ...
Helicity-dependent three-dimensional optical trapping of chiral
... Lw ¼ 1 are trapped only for small enough sizes. In contrast, our results show that all types of chiral particles can be selectively 3D trapped using an appropriate light field whatever their sizes. Results Chiral light field. Our proposal for helicity driven selective 3D optical trapping of transpar ...
... Lw ¼ 1 are trapped only for small enough sizes. In contrast, our results show that all types of chiral particles can be selectively 3D trapped using an appropriate light field whatever their sizes. Results Chiral light field. Our proposal for helicity driven selective 3D optical trapping of transpar ...
Simultaneous calibration of optical tweezers spring constant and
... may be considerable variability in the axial position of the particle with respect to the tweezers center which affects the lateral calibration coefficients and which can only be minimized by sufficient averaging. This situation was remedied by Vermeulen et al. [8] who acquired the detector response ...
... may be considerable variability in the axial position of the particle with respect to the tweezers center which affects the lateral calibration coefficients and which can only be minimized by sufficient averaging. This situation was remedied by Vermeulen et al. [8] who acquired the detector response ...
... modulators have been demonstrated, they require large device footprints of the order of millimeters as a result of weak non-linear electro-optical properties. The modulation strength can be increased by deploying a high-Q resonator, however with the trade-off of significantly sacrificing bandwidth. ...
Fifty years of laser: world and Latvian experience
... Stimulated Emission of Radiation) refers also to light amplifiers not only to light oscillators. As known, every amplifier can be turned in oscillator by appropriate feedback. This presentation is an attempt to give a brief history of laser including operation principles and main applications. Speci ...
... Stimulated Emission of Radiation) refers also to light amplifiers not only to light oscillators. As known, every amplifier can be turned in oscillator by appropriate feedback. This presentation is an attempt to give a brief history of laser including operation principles and main applications. Speci ...
Spectral Characteristics of Semiconductor Lasers with Optical
... 2(a) and (b)], only one mode is present, but at the highest feedback level [Fig. 2(c)], (3) is satisfied for multiple values of k. Note, however, that changing the phase of the feedback, e.g., by varying L by a fraction of a wavelength, is equivalent to translating the ripple in the curves diagonall ...
... 2(a) and (b)], only one mode is present, but at the highest feedback level [Fig. 2(c)], (3) is satisfied for multiple values of k. Note, however, that changing the phase of the feedback, e.g., by varying L by a fraction of a wavelength, is equivalent to translating the ripple in the curves diagonall ...
- vjs.ac.vn
... The optical tweezer is used to trap the micro dielectric particle, which is embedded in a medium as gas, fluid [1, 2, 3]. Usually, the tweezers in many experiments are conducted using the CW laser. It is well known that the CW laser with the power of a few milliwatt can only produce the radiation fo ...
... The optical tweezer is used to trap the micro dielectric particle, which is embedded in a medium as gas, fluid [1, 2, 3]. Usually, the tweezers in many experiments are conducted using the CW laser. It is well known that the CW laser with the power of a few milliwatt can only produce the radiation fo ...
Laser Molecular Spectroscopy CHE466 Fall 2007
... The other process necessary for a laser is the effect of amplifying the stimulated emission process. For such a process the lasing medium must be enclosed in an accurately aligned optical cavity, in which the emitted photons are confined to bounce back to the sample to stimulate further emission (op ...
... The other process necessary for a laser is the effect of amplifying the stimulated emission process. For such a process the lasing medium must be enclosed in an accurately aligned optical cavity, in which the emitted photons are confined to bounce back to the sample to stimulate further emission (op ...
Numerical Analysis of Orbital Angular Momentum Based Next
... mutual opposite numbers of the two beams, their spiral directions of optical strength distributions are opposite (Fig. ...
... mutual opposite numbers of the two beams, their spiral directions of optical strength distributions are opposite (Fig. ...
Direct Laser Writing: Versatile Tool for Microfabrication of Lithium
... Hz) and high pulse energy (up to microjoules)[9-11]. Such source was capable of inducing strong local photorefractive effect at the focus even by a single laser pulse. However, only a fraction (several nanojoules) of the available pulse energy (nearly one milijoule) could be exploited without induci ...
... Hz) and high pulse energy (up to microjoules)[9-11]. Such source was capable of inducing strong local photorefractive effect at the focus even by a single laser pulse. However, only a fraction (several nanojoules) of the available pulse energy (nearly one milijoule) could be exploited without induci ...
Ultrafast Lasers Based on Quantum Dot Structures
... tend to be rather bulky and inefficient. Semiconductor lasers represent one of the most exciting options for the generation of femtosecond optical pulses because these offer admirable potential for compactness and integrability as well as excellent prospects for direct electrical control. The mode lo ...
... tend to be rather bulky and inefficient. Semiconductor lasers represent one of the most exciting options for the generation of femtosecond optical pulses because these offer admirable potential for compactness and integrability as well as excellent prospects for direct electrical control. The mode lo ...
Apodized Chirped Fiber Bragg Gratings for Wavelength Shift Compensation under... Level
... design. They can effectively be used for dispersion compensation in high-bit-rate, long-haul fiber communication links. The main peak in the reflection spectrum of a finite length Bragg gratings with uniform modulation of the index of refraction is accompanied by a series of side lobes at adjacent w ...
... design. They can effectively be used for dispersion compensation in high-bit-rate, long-haul fiber communication links. The main peak in the reflection spectrum of a finite length Bragg gratings with uniform modulation of the index of refraction is accompanied by a series of side lobes at adjacent w ...
Fiber-optic communication
Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fiber. The light forms an electromagnetic carrier wave that is modulated to carry information. First developed in the 1970s, fiber-optic communication systems have revolutionized the telecommunications industry and have played a major role in the advent of the Information Age. Because of its advantages over electrical transmission, optical fibers have largely replaced copper wire communications in core networks in the developed world. Optical fiber is used by many telecommunications companies to transmit telephone signals, Internet communication, and cable television signals. Researchers at Bell Labs have reached internet speeds of over 100 petabit×kilometer per second using fiber-optic communication.The process of communicating using fiber-optics involves the following basic steps: Creating the optical signal involving the use of a transmitter, relaying the signal along the fiber, ensuring that the signal does not become too distorted or weak, receiving the optical signal, and converting it into an electrical signal.