Helicity-dependent three-dimensional optical trapping of chiral
... considered as basic ingredients for optical trapping. Indeed, the angular momentum of light has been merely used so far as a tool for addressing the rotational degrees of freedom of optically trapped transparent or absorbing objects, which may be set into spinning and/or orbiting motions5 10. Here w ...
... considered as basic ingredients for optical trapping. Indeed, the angular momentum of light has been merely used so far as a tool for addressing the rotational degrees of freedom of optically trapped transparent or absorbing objects, which may be set into spinning and/or orbiting motions5 10. Here w ...
PHYS 1400 Lab_ Estimates and Measurements - UCA
... 2. Did you over- or under-estimate? By how much (an error of about 5-10% would be pretty good). Look at your data and note if there is a pattern in your estimates: do you tend to consistently over- or under-estimate, or is there randomness (some over-, some underestimates)? 3. In general, were your ...
... 2. Did you over- or under-estimate? By how much (an error of about 5-10% would be pretty good). Look at your data and note if there is a pattern in your estimates: do you tend to consistently over- or under-estimate, or is there randomness (some over-, some underestimates)? 3. In general, were your ...
Polarization microscopy with the LC-PolScope
... source (e.g. arc lamp with interference filter) and the condenser lens. The analyzer for circularly polarized light is placed after the objective lens. The universal compensator is built from two variable retarder plates and a linear polarizer (see text box The Universal Compensator). The variable r ...
... source (e.g. arc lamp with interference filter) and the condenser lens. The analyzer for circularly polarized light is placed after the objective lens. The universal compensator is built from two variable retarder plates and a linear polarizer (see text box The Universal Compensator). The variable r ...
Dispersion Trimming in a Reconfigurable Wavelength Selective Switch
... onto the ROADM itself, to slow down the fast growth in inventory requirements for reconfigurable optical networks. Recently, a promising tunable dispersion compensator was demonstrated with a potential capability for wavelength division multiplexing (WDM) [5]. It is based on virtually imaged phased ...
... onto the ROADM itself, to slow down the fast growth in inventory requirements for reconfigurable optical networks. Recently, a promising tunable dispersion compensator was demonstrated with a potential capability for wavelength division multiplexing (WDM) [5]. It is based on virtually imaged phased ...
Comparison of the sensitivity of air and dielectric
... we use Rc = 0.50a for the dielectric mode and Rc = 0.36a for the air mode. Following the design of [15], adaptation rings are added around the core to smooth the variation in hole radius from the core to the bulk crystal and so increase the Q factor, with minimal change in the modal volume. Double- ...
... we use Rc = 0.50a for the dielectric mode and Rc = 0.36a for the air mode. Following the design of [15], adaptation rings are added around the core to smooth the variation in hole radius from the core to the bulk crystal and so increase the Q factor, with minimal change in the modal volume. Double- ...
as PDF
... will only allow very limited amount of light to enter your spectrometer. So, if your design requires a slit of 5 – 10 microns or less you could consider the following: • loosening your requirement for the resolution • choosing a wider detector and choosing a grating with a higher ...
... will only allow very limited amount of light to enter your spectrometer. So, if your design requires a slit of 5 – 10 microns or less you could consider the following: • loosening your requirement for the resolution • choosing a wider detector and choosing a grating with a higher ...
The mechanism for continuum polarization in laser induced
... asymmetric profiles in both P and α0. There is a hint of such asymmetry in the fs data as well, although the poorer signal/noise ratio makes this effect more difficult to discern. In all the experiments described so far, the laser was incident at an oblique angle 30° from the normal, and the emission ...
... asymmetric profiles in both P and α0. There is a hint of such asymmetry in the fs data as well, although the poorer signal/noise ratio makes this effect more difficult to discern. In all the experiments described so far, the laser was incident at an oblique angle 30° from the normal, and the emission ...
A new approach to sum frequency generation of single
... light, the conversion efficiency is limited by the input power available from the interacting lasers. Higher conversion efficiency can be obtained by resonating one or both interacting beams in a high-finesse resonator. This can be achieved by placing the nonlinear crystal inside the cavity of a las ...
... light, the conversion efficiency is limited by the input power available from the interacting lasers. Higher conversion efficiency can be obtained by resonating one or both interacting beams in a high-finesse resonator. This can be achieved by placing the nonlinear crystal inside the cavity of a las ...
PDF
... Alternatively, the free-carrier lifetime limitation in silicon can be overcome by the use of a MOS capacitor structure [7], [8]. MOS capacitor structures are in some ways much like p-n junctions, except they are formed from three distinct layers: a poly-Si layer, an oxide layer, and an SOI silicon l ...
... Alternatively, the free-carrier lifetime limitation in silicon can be overcome by the use of a MOS capacitor structure [7], [8]. MOS capacitor structures are in some ways much like p-n junctions, except they are formed from three distinct layers: a poly-Si layer, an oxide layer, and an SOI silicon l ...
Dual-color total internal reflection fluorescence cross
... significantly improved selectivity and applicability.8 FCCS institutes two differently colored labels and realizes the distinction between coinciding and separated occurrence of these labels. It thus introduces a useful tool to monitor various biological assays including molecular binding between tw ...
... significantly improved selectivity and applicability.8 FCCS institutes two differently colored labels and realizes the distinction between coinciding and separated occurrence of these labels. It thus introduces a useful tool to monitor various biological assays including molecular binding between tw ...
Large-Scale Optical-Field Measurements with Geometric Fibre Constructs
... the dark current and hence of the device noise. For films of thickness much smaller than the fiber diameter but equal to a few penetration depths at a given wavelength of illumination, the dark current is drastically reduced while the amount of light absorbed, and so the photo-current, remain nearly ...
... the dark current and hence of the device noise. For films of thickness much smaller than the fiber diameter but equal to a few penetration depths at a given wavelength of illumination, the dark current is drastically reduced while the amount of light absorbed, and so the photo-current, remain nearly ...
Diffraction of light by a single slit and gratings
... wavelet of the second half will have a partner wavelet in the first half with precisely a halfwavelength optical path difference. This, however, means that at the point of observation all wavelets from the slit add with their partner wavelets to zero because of their 180° phase difference. As a resu ...
... wavelet of the second half will have a partner wavelet in the first half with precisely a halfwavelength optical path difference. This, however, means that at the point of observation all wavelets from the slit add with their partner wavelets to zero because of their 180° phase difference. As a resu ...
Laser Cutting
... possibility of a process called Light Amplification. If enough excited atoms could be put together then a passing photon could encourage the production of duplicate photons, thousands even millions or billions of them. Of course this was all theoretical, it was not until the 1950s that the detail o ...
... possibility of a process called Light Amplification. If enough excited atoms could be put together then a passing photon could encourage the production of duplicate photons, thousands even millions or billions of them. Of course this was all theoretical, it was not until the 1950s that the detail o ...
An Introduction to Optical Window Design
... the allowable deterioration of a plane wavefront through the entire aperture of the window. This allowable deterioration varies depending on the system application and can vary from 1 wave peak to valley (P-V) at 0.63 µm for a viewing window all the way down to 0.05 wave P-V at 0.63 µm for a high pe ...
... the allowable deterioration of a plane wavefront through the entire aperture of the window. This allowable deterioration varies depending on the system application and can vary from 1 wave peak to valley (P-V) at 0.63 µm for a viewing window all the way down to 0.05 wave P-V at 0.63 µm for a high pe ...
Fluorescence Fidelity Depends on Filters
... fluorescence microscopy, due to the fact that small diameter pinholes are used. However, this source of optical noise should be minimized in microscopy applications where pinholes are not used, such as in widefield and multiphoton microscopy. Optical noise originating from stray light reflections of ...
... fluorescence microscopy, due to the fact that small diameter pinholes are used. However, this source of optical noise should be minimized in microscopy applications where pinholes are not used, such as in widefield and multiphoton microscopy. Optical noise originating from stray light reflections of ...
Get
... geometrically scaled to ~120nm in the sample), DMD patterns that corresponding to submicron features could be made. As shown in Fig. 2, via 10 pulses, we were able to fabricate complex structures with <1μm features. As the experimental system was not a perfect imaging system (i.e. not all of the hig ...
... geometrically scaled to ~120nm in the sample), DMD patterns that corresponding to submicron features could be made. As shown in Fig. 2, via 10 pulses, we were able to fabricate complex structures with <1μm features. As the experimental system was not a perfect imaging system (i.e. not all of the hig ...
Chapter 2 - Handbook of Optics
... The phase difference changes by 2π every time the OPD increases by a wavelength. The OPD is therefore constant along a fringe. Constructiy e interference occurs when the two waves are in phase, and a bright fringe or maximum in the intensity pattern results. This corresponds to a phase difference of ...
... The phase difference changes by 2π every time the OPD increases by a wavelength. The OPD is therefore constant along a fringe. Constructiy e interference occurs when the two waves are in phase, and a bright fringe or maximum in the intensity pattern results. This corresponds to a phase difference of ...
All-angle negative refraction and imaging in a visible region
... engineering the dispersion of photonic bands in dielectric and metallic PCs [8-15], proving that negative refraction can exist without a negative refractive index. So far, demonstration of negative refraction and imaging in bulk materials at visible frequencies still remains very challenging [16-19 ...
... engineering the dispersion of photonic bands in dielectric and metallic PCs [8-15], proving that negative refraction can exist without a negative refractive index. So far, demonstration of negative refraction and imaging in bulk materials at visible frequencies still remains very challenging [16-19 ...
AY 105 Lab Experiment #3: Optical aberrations
... • Review basic concepts in optical abberation (i.e. deviation from the simple paraxial optical theory we have been using thus far) such as: spherical aberration, astigmatism, coma, field curvature, distortion, chromatic aberration, lateral color. Background Diffraction, refraction, reflection, and s ...
... • Review basic concepts in optical abberation (i.e. deviation from the simple paraxial optical theory we have been using thus far) such as: spherical aberration, astigmatism, coma, field curvature, distortion, chromatic aberration, lateral color. Background Diffraction, refraction, reflection, and s ...
the Quantifying Scatter PDF
... Scatter signals can be easily quantified as scattered light power per unit solid angle (in watts per steradian); however, in order to make the results more meaningful, these signals are usually normalized, in some fashion, by the light incident on the scatter source. The three ways commonly employed ...
... Scatter signals can be easily quantified as scattered light power per unit solid angle (in watts per steradian); however, in order to make the results more meaningful, these signals are usually normalized, in some fashion, by the light incident on the scatter source. The three ways commonly employed ...
Anti-reflective coating
An antireflective or anti-reflection (AR) coating is a type of optical coating applied to the surface of lenses and other optical elements to reduce reflection. In typical imaging systems, this improves the efficiency since less light is lost. In complex systems such as a telescope, the reduction in reflections also improves the contrast of the image by elimination of stray light. This is especially important in planetary astronomy. In other applications, the primary benefit is the elimination of the reflection itself, such as a coating on eyeglass lenses that makes the eyes of the wearer more visible to others, or a coating to reduce the glint from a covert viewer's binoculars or telescopic sight.Many coatings consist of transparent thin film structures with alternating layers of contrasting refractive index. Layer thicknesses are chosen to produce destructive interference in the beams reflected from the interfaces, and constructive interference in the corresponding transmitted beams. This makes the structure's performance change with wavelength and incident angle, so that color effects often appear at oblique angles. A wavelength range must be specified when designing or ordering such coatings, but good performance can often be achieved for a relatively wide range of frequencies: usually a choice of IR, visible, or UV is offered.