Optical Metrology vs SEM. Range, Accuracy, Repeatability
... We have compared Flux-Area measurements to standard optical edge-to-edge measurements and shown that Flux-Area measurements are able to accurately measure small features well below the limit of conventional techniques. However the multipoint calibration of conventional systems does serve to hide som ...
... We have compared Flux-Area measurements to standard optical edge-to-edge measurements and shown that Flux-Area measurements are able to accurately measure small features well below the limit of conventional techniques. However the multipoint calibration of conventional systems does serve to hide som ...
Single Particle Spectroscopy Study of Metal-Film
... wavelength in the range 450-490 nm. Figure 1b shows a typical spectrum from a Ag nanoparticle on the glass substrate, with a peak scattering wavelength of 490 nm. This wavelength lies close to the single particle resonance wavelength observed in solution phase (430 nm). The difference in resonance f ...
... wavelength in the range 450-490 nm. Figure 1b shows a typical spectrum from a Ag nanoparticle on the glass substrate, with a peak scattering wavelength of 490 nm. This wavelength lies close to the single particle resonance wavelength observed in solution phase (430 nm). The difference in resonance f ...
Spontaneous, stimulated, coherent and incoherent nonlinear wave
... two-photon induced techniques: second harmonic generation, hyper-Rayleigh scattering, two photon fluorescence and hyper-Raman are described within the same framework. ...
... two-photon induced techniques: second harmonic generation, hyper-Rayleigh scattering, two photon fluorescence and hyper-Raman are described within the same framework. ...
Bistable localized emission states in a 200 μm broad
... Small-area bistable lasing spots, indicators of cavity solitons, can be created at different positions within the aperture of a broad-area VCSEL with frequencyselective feedback. These spots can be switched on and off with an incoherent injected field. Introduction Recent years showed remarkable pro ...
... Small-area bistable lasing spots, indicators of cavity solitons, can be created at different positions within the aperture of a broad-area VCSEL with frequencyselective feedback. These spots can be switched on and off with an incoherent injected field. Introduction Recent years showed remarkable pro ...
Single Particle Spectroscopy Study of Metal-Film
... wavelength in the range 450-490 nm. Figure 1b shows a typical spectrum from a Ag nanoparticle on the glass substrate, with a peak scattering wavelength of 490 nm. This wavelength lies close to the single particle resonance wavelength observed in solution phase (430 nm). The difference in resonance f ...
... wavelength in the range 450-490 nm. Figure 1b shows a typical spectrum from a Ag nanoparticle on the glass substrate, with a peak scattering wavelength of 490 nm. This wavelength lies close to the single particle resonance wavelength observed in solution phase (430 nm). The difference in resonance f ...
Photonic crystal slot nanobeam slow light
... This gives a sensitivity of 7 ⫻ 102 nm/ RIU, which has been confirmed several times later. A sensitivity close to the predicted value of 724 nm/RIU, implies that the calculated mode pattern agrees with experiment. Previously the high intensity in a different slot structure was measured by locally pr ...
... This gives a sensitivity of 7 ⫻ 102 nm/ RIU, which has been confirmed several times later. A sensitivity close to the predicted value of 724 nm/RIU, implies that the calculated mode pattern agrees with experiment. Previously the high intensity in a different slot structure was measured by locally pr ...
School of Physics & Astronomy
... Physics & Astronomy - 2000 Level modules AS2001 Astronomy and Astrophysics Credits: ...
... Physics & Astronomy - 2000 Level modules AS2001 Astronomy and Astrophysics Credits: ...
IOSR Journal of Applied Physics (IOSR-JAP) e-ISSN: 2278-4861.
... width W = 500 nm and height h = 260 nm) with a silica substrate (blue region). The distance between the holes of the mirrors is a = 375 nm and the radius of the holes is r = 0.28a. The radii of the holes in the tapers are 0.24a, 0.22a and 0.19a, respectively. The diameter and the height of the gold ...
... width W = 500 nm and height h = 260 nm) with a silica substrate (blue region). The distance between the holes of the mirrors is a = 375 nm and the radius of the holes is r = 0.28a. The radii of the holes in the tapers are 0.24a, 0.22a and 0.19a, respectively. The diameter and the height of the gold ...
Mechanical mapping with chemical specificity by confocal Brillouin
... relevant to understanding the pathogenesis of the disease and clinical outcome. This information can be achieved by vibrational spectroscopy such as Raman scattering or IR absorption when coupled to a microscope.19, 20 Raman microscopy has the advantage of narrow bands, low scattering of water and s ...
... relevant to understanding the pathogenesis of the disease and clinical outcome. This information can be achieved by vibrational spectroscopy such as Raman scattering or IR absorption when coupled to a microscope.19, 20 Raman microscopy has the advantage of narrow bands, low scattering of water and s ...
Low-Coherence Fibre-Optic Interferometric Sensors
... tion about the measurand as it is shown in Fig. 1. It can be noted that if ∆φ = 0, then there is no spectral modulation (Fig. 1a). If the phase difference between the interfering beams varies from zero, then the function takes the form of the cosine curve (Fig. 1b). The spacing of adjacent transmiss ...
... tion about the measurand as it is shown in Fig. 1. It can be noted that if ∆φ = 0, then there is no spectral modulation (Fig. 1a). If the phase difference between the interfering beams varies from zero, then the function takes the form of the cosine curve (Fig. 1b). The spacing of adjacent transmiss ...
Absorption Measurements in Microfluidic Devices using Ring-down Spectroscopy
... then fed into a fast lock-in amplifier (Stanford Research Systems, SR 844) and referenced to the driving current of the laser diode. To reduce radio frequency interference, all the cables are shielded. The laser dye ADS805(American Dye Source) was used without further purification and had an absorp ...
... then fed into a fast lock-in amplifier (Stanford Research Systems, SR 844) and referenced to the driving current of the laser diode. To reduce radio frequency interference, all the cables are shielded. The laser dye ADS805(American Dye Source) was used without further purification and had an absorp ...
Effect of the refractive index change kinetics of
... One of the most promising photosensitive materials for the recording of high-efficiency robust diffractive optical elements is photo-thermo-refractive (PTR) glass [3]. Such material is a multicomponent silicate glass that exhibits RIC after successive UV exposure and thermal treatment at temperature ...
... One of the most promising photosensitive materials for the recording of high-efficiency robust diffractive optical elements is photo-thermo-refractive (PTR) glass [3]. Such material is a multicomponent silicate glass that exhibits RIC after successive UV exposure and thermal treatment at temperature ...
E, EE - OSA Publishing
... Determination of the spatial coherence of the laser field requires both amplitude and phase information, which makes it necessary to solve a wave equation. London et al. 5 have treated coherence by solving a paraxial wave equation in terms of normal modes, which is valid only for unsaturated gain. F ...
... Determination of the spatial coherence of the laser field requires both amplitude and phase information, which makes it necessary to solve a wave equation. London et al. 5 have treated coherence by solving a paraxial wave equation in terms of normal modes, which is valid only for unsaturated gain. F ...
Photonic Devices I Purpose of the Lab
... to have too much attenuation. As a result the grating was moved to a waveguide layer immediately adjacent (below) the cavity. The evernescent field accompanying the light wave in the cavity extends into the adjacent layer and interacts with the grating to produce the desired effect. ...
... to have too much attenuation. As a result the grating was moved to a waveguide layer immediately adjacent (below) the cavity. The evernescent field accompanying the light wave in the cavity extends into the adjacent layer and interacts with the grating to produce the desired effect. ...
Waves & Oscillations Physics 42200 Spring 2015 Semester Lecture 36 – Interference
... Multiple Beam Interference • In many situations, a coherent beam can interfere with itself multiple times • Consider a beam incident on a thin film – Some component of the light will be reflected at each surface and some will be transmitted Incident light ...
... Multiple Beam Interference • In many situations, a coherent beam can interfere with itself multiple times • Consider a beam incident on a thin film – Some component of the light will be reflected at each surface and some will be transmitted Incident light ...
Holographic 3-D Displays - Electro-holography within
... to reconstruct the wave field of a 3-D scene in space with coherent light. Such displays must operate at or near video rate to merit the name of video holography. Furthermore, real-time holography must not only display the hologram at video rate but also compute the hologram frames in real time to e ...
... to reconstruct the wave field of a 3-D scene in space with coherent light. Such displays must operate at or near video rate to merit the name of video holography. Furthermore, real-time holography must not only display the hologram at video rate but also compute the hologram frames in real time to e ...
Optimal Measurement of Multimode Squeezed Light via Eigenmode
... The ten largest eigenvalues of the squeezing for a pump pulse long compared to the nonlinear response time (∆ωTχ=0.1) and with an intensity such that the gain-length product at the peak of the pump is 4. For the case of phase velocity mismatch, ∆kL was chosen to be 2π . For the case of group velocit ...
... The ten largest eigenvalues of the squeezing for a pump pulse long compared to the nonlinear response time (∆ωTχ=0.1) and with an intensity such that the gain-length product at the peak of the pump is 4. For the case of phase velocity mismatch, ∆kL was chosen to be 2π . For the case of group velocit ...
Procedure - K Street Studio
... types and amounts of phases present in a specimen and many other things where the spacing of the obstacles, in this case the atoms, is on the scale of the wavelength of the x-rays, typically 1 to 3 nm. If a longer wavelength is used then one can use diffraction to investigate the structures where th ...
... types and amounts of phases present in a specimen and many other things where the spacing of the obstacles, in this case the atoms, is on the scale of the wavelength of the x-rays, typically 1 to 3 nm. If a longer wavelength is used then one can use diffraction to investigate the structures where th ...
Dual-color total internal reflection fluorescence cross
... excitation and single-photon detection. Nonetheless, for several applications, TIR illumination can provide further benefits, for instance when ligands interacting with receptors immobilized onto a surface are to be studied.9–12 First, in TIRFCCS the molecules are only excited near the glass-sample ...
... excitation and single-photon detection. Nonetheless, for several applications, TIR illumination can provide further benefits, for instance when ligands interacting with receptors immobilized onto a surface are to be studied.9–12 First, in TIRFCCS the molecules are only excited near the glass-sample ...
PPT - Purdue University Cytometry Laboratories
... Some Key issues with regard to light • When you use a very bright light source to excite molecules in a cell, you also produce a large amount of reflected light • This light is what we measure when we measure forward and side scatter • Typically it can be 105 or 106 times the fluorescence signal pr ...
... Some Key issues with regard to light • When you use a very bright light source to excite molecules in a cell, you also produce a large amount of reflected light • This light is what we measure when we measure forward and side scatter • Typically it can be 105 or 106 times the fluorescence signal pr ...