7th-ATF2-urakawa
... facility. First meas. of e-cloud build-up using instrumented sections in dipoles and drifts sections (large emittance). ...
... facility. First meas. of e-cloud build-up using instrumented sections in dipoles and drifts sections (large emittance). ...
Multi-photon absorption and third-order
... where I00 is the peak intensity, z is the sample position, z0 = πω02 / λ is the Rayleigh length; ω0 is the beam waist at the focal point (z = 0), λ is the laser wavelength; effective path lengths in the sample for three-photon absorption (3PA) and four-photon absorption (4PA) are given as Leff′ = [ ...
... where I00 is the peak intensity, z is the sample position, z0 = πω02 / λ is the Rayleigh length; ω0 is the beam waist at the focal point (z = 0), λ is the laser wavelength; effective path lengths in the sample for three-photon absorption (3PA) and four-photon absorption (4PA) are given as Leff′ = [ ...
here - Optoelectronics Research Centre
... one dimensional, axial profile obtained at a point location while B-scan is a two dimensional, cross sectional image of the sample that is built up from a laterally displaced A-scans. OCT has less penetration depth than ultrasound techniques but its main advantage is that it can provide micron level ...
... one dimensional, axial profile obtained at a point location while B-scan is a two dimensional, cross sectional image of the sample that is built up from a laterally displaced A-scans. OCT has less penetration depth than ultrasound techniques but its main advantage is that it can provide micron level ...
SLR-17-03e
... Regulation No. 128 par. 3.7.1. to colour definitions in Regulation No. 48 should be updated, once available; One of the principles behind the light sources simplification is that light source regulations refer to R.E.5 but R.E.5 should not refer back. This is to increase the chance that other system ...
... Regulation No. 128 par. 3.7.1. to colour definitions in Regulation No. 48 should be updated, once available; One of the principles behind the light sources simplification is that light source regulations refer to R.E.5 but R.E.5 should not refer back. This is to increase the chance that other system ...
High optical efficiency and photon noise limited sensitivity of microwave
... determined the aperture efficiency by comparing the measured NEP to the NEP expected for a perfect absorber with the same area as a single pixel. The latter was determined using the geometrical throughput between the detector and the illuminating aperture. However, this approach is only valid if the ...
... determined the aperture efficiency by comparing the measured NEP to the NEP expected for a perfect absorber with the same area as a single pixel. The latter was determined using the geometrical throughput between the detector and the illuminating aperture. However, this approach is only valid if the ...
full text pdf
... a function of d2 is shown in Fig. 6. In Fig. 6 we can find that the coupling capability decreases with the increase of d2 . When l = 1550 nm, the transmittance of the central core first decreases and then increases with the increase of d2 , since when the d2 is shorter than 8000 nm, the coupling cap ...
... a function of d2 is shown in Fig. 6. In Fig. 6 we can find that the coupling capability decreases with the increase of d2 . When l = 1550 nm, the transmittance of the central core first decreases and then increases with the increase of d2 , since when the d2 is shorter than 8000 nm, the coupling cap ...
Absolute phase and amplitude mapping of surface acoustic wave
... classical solutions include the Sagnac interferometer proposed by Tachizaki et al. [5], also used by Hashimoto et al. [6], or another setups by Kokkonnen et al. [7], Martinussen et al. [8], Graebner et al. [9]. In this paper, an alternative approach is proposed, using amplitude splitting heterodyne ...
... classical solutions include the Sagnac interferometer proposed by Tachizaki et al. [5], also used by Hashimoto et al. [6], or another setups by Kokkonnen et al. [7], Martinussen et al. [8], Graebner et al. [9]. In this paper, an alternative approach is proposed, using amplitude splitting heterodyne ...
Three-dimensional imaging of a phase object from a single sample... Chien-Chun Chen, Huaidong Jiang, Lu Rong,
... calculated Fourier moduli within a spherical shell. Compared to phase retrieval in coherent diffraction imaging, the convergence speed in ankylographic reconstruction is slower and more iterations are required. To make ankylographic reconstructions more efficient, we performed ∼10 independent recons ...
... calculated Fourier moduli within a spherical shell. Compared to phase retrieval in coherent diffraction imaging, the convergence speed in ankylographic reconstruction is slower and more iterations are required. To make ankylographic reconstructions more efficient, we performed ∼10 independent recons ...
of refraction
... Light very often travels in straight lines. We represent light using rays, which are straight lines emanating from an object. This is an idealization, but is very useful for geometric optics. ...
... Light very often travels in straight lines. We represent light using rays, which are straight lines emanating from an object. This is an idealization, but is very useful for geometric optics. ...
Wave-front reconstruction from multidirectional
... the obtained interference fringes can only lead to the wave-front derivative in the direction of shear. To avoid error propagation, reconstruction methods based on the least-squares estimation require the wave-front derivative in two orthogonal directions. Thus, with these LSIs, two measurements mus ...
... the obtained interference fringes can only lead to the wave-front derivative in the direction of shear. To avoid error propagation, reconstruction methods based on the least-squares estimation require the wave-front derivative in two orthogonal directions. Thus, with these LSIs, two measurements mus ...
Introduction: When waves encounter obstacles (or openings), they
... The zone plate has got multiple foci on either side of the plate. Hence, the intensity of the image formed will be much less. Convex lens has only one focus. As all the light is focused at one point, the intensity of the image will be more. In a zone plate, waves reaching the image point through any ...
... The zone plate has got multiple foci on either side of the plate. Hence, the intensity of the image formed will be much less. Convex lens has only one focus. As all the light is focused at one point, the intensity of the image will be more. In a zone plate, waves reaching the image point through any ...
Direct observation of light focusing by single photoreceptor cell nuclei
... reaches the outer segments of the photoreceptors. Their exact function is still debated and there are arguments speaking for both the improvement of spatial vision [12] and for their role in colour vision [13–16] but it is certain that their raison d’être lies in optical processing of light before ...
... reaches the outer segments of the photoreceptors. Their exact function is still debated and there are arguments speaking for both the improvement of spatial vision [12] and for their role in colour vision [13–16] but it is certain that their raison d’être lies in optical processing of light before ...
The structure of the energy bands and optical absorption in osmium
... led to an understanding of the main laws governing the formation of the interband optical absorption spectra over a wide energy region.'& Considerably less success was achieved in the interpretation of the optical properties of metals with a hexagonal lattice. Only individual theoretical calculation ...
... led to an understanding of the main laws governing the formation of the interband optical absorption spectra over a wide energy region.'& Considerably less success was achieved in the interpretation of the optical properties of metals with a hexagonal lattice. Only individual theoretical calculation ...
Tuning the polarization state of light via time retardation with...
... (Received 17 February 2013; published 15 October 2013) We report here an approach to tune efficiently the phase difference of light in two orthogonal directions, ϕ, by controlling the time retardation with a microstructured surface made of L-shaped metallic patterns. The time retardation through th ...
... (Received 17 February 2013; published 15 October 2013) We report here an approach to tune efficiently the phase difference of light in two orthogonal directions, ϕ, by controlling the time retardation with a microstructured surface made of L-shaped metallic patterns. The time retardation through th ...
Ellipsometry Data Analysis: a Tutorial - EECS @ UMich
... “…fitting of parameters is not the end-all of parameter estimation. To be genuinely useful, a fitting procedure should provide (i) parameters, (ii) error estimates on the parameters, and (iii) a statistical measure of goodness-of-fit. When the third item suggests that the model is an unlikely match ...
... “…fitting of parameters is not the end-all of parameter estimation. To be genuinely useful, a fitting procedure should provide (i) parameters, (ii) error estimates on the parameters, and (iii) a statistical measure of goodness-of-fit. When the third item suggests that the model is an unlikely match ...