Optical forces through guided light deflections
... contrast to perfect reflection, the partial refractions and reflections at the material interfaces is a less efficient way of transferring momentum. For example, light reflection on silver microbeads at NA = 1.25 can produce axial forces with efficiencies up to Q ~3.5. Reflections off metallic beads ...
... contrast to perfect reflection, the partial refractions and reflections at the material interfaces is a less efficient way of transferring momentum. For example, light reflection on silver microbeads at NA = 1.25 can produce axial forces with efficiencies up to Q ~3.5. Reflections off metallic beads ...
A low reference spur quadrature phase
... Abstract: This paper presents a low phase noise and low reference spur quadrature phase-locked loop (QPLL) circuit that is implemented as a part of a frequency synthesizer for China UWB standard systems. A glitch-suppressed charge pump (CP) is employed for reference spur reduction. By forcing the ph ...
... Abstract: This paper presents a low phase noise and low reference spur quadrature phase-locked loop (QPLL) circuit that is implemented as a part of a frequency synthesizer for China UWB standard systems. A glitch-suppressed charge pump (CP) is employed for reference spur reduction. By forcing the ph ...
Dispersion Trimming in a Reconfigurable Wavelength Selective Switch
... wavelength processor (DWP) have been devoted to adjusting the power of the optical signal on a wavelength selective basis and switching to specified ports. For example, attenuation control for a channel is achieved by setting the phase pattern on the LCOS such that the light is split into two compon ...
... wavelength processor (DWP) have been devoted to adjusting the power of the optical signal on a wavelength selective basis and switching to specified ports. For example, attenuation control for a channel is achieved by setting the phase pattern on the LCOS such that the light is split into two compon ...
Just like capacitors, we have types of resistors
... DIODE This is a semi-conductor device that allows current to flow only in one direction, (depending on how it is connected in the circuit). It can be connected in either forward or reverse direction. CIRCUIT SYMBOL ...
... DIODE This is a semi-conductor device that allows current to flow only in one direction, (depending on how it is connected in the circuit). It can be connected in either forward or reverse direction. CIRCUIT SYMBOL ...
Optical Broadband Angular Selectivity Yichen Shen, Dexin Ye, Ivan Celanovic,
... ith stack, where a0 = 140 nm and r = 1.165. For index matching purposes, the whole sample was immersed into a colorless liquid with dielectric constant ✏liquid = ✏1 = 2.18 (Cargille Labs) (Fig. 3A). The sample could work in the air by adding a coupling prism or by using a porous material for ✏1 that ...
... ith stack, where a0 = 140 nm and r = 1.165. For index matching purposes, the whole sample was immersed into a colorless liquid with dielectric constant ✏liquid = ✏1 = 2.18 (Cargille Labs) (Fig. 3A). The sample could work in the air by adding a coupling prism or by using a porous material for ✏1 that ...
mm {0.84 M PASS
... light source 202 is coupled to a region of ?ber-optic 200 in the neighborhood of left-end 206 by ?ber-optic 210. Fiber-optic 210 has a diameter, such as 20 micrometers, which is less than one-half of the diameter, such as 75 ...
... light source 202 is coupled to a region of ?ber-optic 200 in the neighborhood of left-end 206 by ?ber-optic 210. Fiber-optic 210 has a diameter, such as 20 micrometers, which is less than one-half of the diameter, such as 75 ...
Mechanical mapping with chemical specificity by confocal Brillouin
... fluoride substrate and stored in a freezer (–80°C) until required for analysis. It was then removed for the microscopic analysis. The thickness of the air dried section was approximately 5 m. Brillouin spectra were collected with a microfocused setup26 using a tandem 3+3 Fabry-Perot interferometer. ...
... fluoride substrate and stored in a freezer (–80°C) until required for analysis. It was then removed for the microscopic analysis. The thickness of the air dried section was approximately 5 m. Brillouin spectra were collected with a microfocused setup26 using a tandem 3+3 Fabry-Perot interferometer. ...
Fabrication and Application of Phase only Holograms for High
... 4. Beam shaping with binary phase only holograms Although the ability of ITO coatings to withstand high cw power levels is crucial for the envisioned applications it is equally important to evaluate the diffraction efficiency as well as beam shaping capabilities of such holograms. The reported diffr ...
... 4. Beam shaping with binary phase only holograms Although the ability of ITO coatings to withstand high cw power levels is crucial for the envisioned applications it is equally important to evaluate the diffraction efficiency as well as beam shaping capabilities of such holograms. The reported diffr ...
An 868 MHz Low Power, Low Phase Noise LC VCO in 0
... around room temperatures. Transistors M21M25 serve as start-up for the bandgap core. In the second stage, the reference voltage VBG is forced across off-chip buffer resistor Rbuf via buffer op-amp to yield constant current. In addition to being mirrored to the PLL blocks with required ratios, this g ...
... around room temperatures. Transistors M21M25 serve as start-up for the bandgap core. In the second stage, the reference voltage VBG is forced across off-chip buffer resistor Rbuf via buffer op-amp to yield constant current. In addition to being mirrored to the PLL blocks with required ratios, this g ...
Optical response of plasmonic relief meta-surfaces
... reflection spectra for a silver surface patterned with intaglio metamaterial arrays of crossed 300 nm slots (unit cell size 400 nm) cut to a range of depths to achieve a variety of polarization- and viewing-angle-independent colours as shown in the upper row of optical microscope images, where each ...
... reflection spectra for a silver surface patterned with intaglio metamaterial arrays of crossed 300 nm slots (unit cell size 400 nm) cut to a range of depths to achieve a variety of polarization- and viewing-angle-independent colours as shown in the upper row of optical microscope images, where each ...
Enhancement of absorption and color contrast in
... (Received 23 June 2013; accepted 19 August 2013; published online 4 September 2013) Recently a new class of optical interference coatings was introduced which comprises ultra-thin, highly absorbing dielectric layers on metal substrates. We show that these lossy coatings can be augmented by an additi ...
... (Received 23 June 2013; accepted 19 August 2013; published online 4 September 2013) Recently a new class of optical interference coatings was introduced which comprises ultra-thin, highly absorbing dielectric layers on metal substrates. We show that these lossy coatings can be augmented by an additi ...
THE FARADAY AND KERR EFFECTS The Faraday and Kerr Effects
... Light is electromagnetic radiation that varies in wavelength ranging from around 4,000 (violet) to around 7,700 (red) angstroms. This kind of light may be apparent to the average unaided human eye. Light vibrates at different frequencies and travels at different speeds. When light in which electroma ...
... Light is electromagnetic radiation that varies in wavelength ranging from around 4,000 (violet) to around 7,700 (red) angstroms. This kind of light may be apparent to the average unaided human eye. Light vibrates at different frequencies and travels at different speeds. When light in which electroma ...
- vjs.ac.vn
... coordinate, x̂ is the unit vector of the polarization along the x direction, k 2 / is the wave number, 0 is the carrier frequency, is the pulse duration, c is the light speed. After propagating through the Kerr medium, this Gaussian beam will be redistributed by the self-focusing effect and ...
... coordinate, x̂ is the unit vector of the polarization along the x direction, k 2 / is the wave number, 0 is the carrier frequency, is the pulse duration, c is the light speed. After propagating through the Kerr medium, this Gaussian beam will be redistributed by the self-focusing effect and ...
Interferometry
Interferometry is a family of techniques in which waves, usually electromagnetic, are superimposed in order to extract information about the waves. Interferometry is an important investigative technique in the fields of astronomy, fiber optics, engineering metrology, optical metrology, oceanography, seismology, spectroscopy (and its applications to chemistry), quantum mechanics, nuclear and particle physics, plasma physics, remote sensing, biomolecular interactions, surface profiling, microfluidics, mechanical stress/strain measurement, and velocimetry.Interferometers are widely used in science and industry for the measurement of small displacements, refractive index changes and surface irregularities. In analytical science, interferometers are used in continuous wave Fourier transform spectroscopy to analyze light containing features of absorption or emission associated with a substance or mixture. An astronomical interferometer consists of two or more separate telescopes that combine their signals, offering a resolution equivalent to that of a telescope of diameter equal to the largest separation between its individual elements.