Ab initio embedded cluster study of optical second harmonic
... spectra above the gap for NiO(001) within the configuration interaction singles (CIS) framework [31]. In this method, the CIS wave function is expressed as a combination of all determinants obtained by replacing one occupied orbital (from the ground-state determinant) with a virtual orbital. The sin ...
... spectra above the gap for NiO(001) within the configuration interaction singles (CIS) framework [31]. In this method, the CIS wave function is expressed as a combination of all determinants obtained by replacing one occupied orbital (from the ground-state determinant) with a virtual orbital. The sin ...
Iron Mineralogy of Venus` Surface Investigated by Mossbauer
... the 57 Co source (because of different oxidation states, chemical environments, and/or magnetic order). Thus, the energy of the source γ -rays must be modulated to achieve resonance. This is done using the Doppler effect by mounting the 57 Co source on a velocity transducer and moving it with respec ...
... the 57 Co source (because of different oxidation states, chemical environments, and/or magnetic order). Thus, the energy of the source γ -rays must be modulated to achieve resonance. This is done using the Doppler effect by mounting the 57 Co source on a velocity transducer and moving it with respec ...
Refractive Index and Thickness Analysis of Natural Silicon Dioxide
... The angle of incidence chosen around the Brewster’s angle or the quasi-Brewster’s angle ( = 90°) might enhance analysis sensitivity (14). For instance, Figure 1 shows two simulated and space trajectories generated by the WVASE32 software package for two transparent films, SiO2 and Si3N4, which ...
... The angle of incidence chosen around the Brewster’s angle or the quasi-Brewster’s angle ( = 90°) might enhance analysis sensitivity (14). For instance, Figure 1 shows two simulated and space trajectories generated by the WVASE32 software package for two transparent films, SiO2 and Si3N4, which ...
Harnessing and control of optical rogue waves in supercontinuum
... focused on understanding the SC noise properties, as the SC amplitude and phase stability are key factors in assessing potential applications. Although initial research here concentrated on establishing guidelines for stable SC generation using femtosecond pulses [8–9], subsequent work has considere ...
... focused on understanding the SC noise properties, as the SC amplitude and phase stability are key factors in assessing potential applications. Although initial research here concentrated on establishing guidelines for stable SC generation using femtosecond pulses [8–9], subsequent work has considere ...
2 Theoretical Concepts
... e−(kx +ky )(w0 /4+iz/2k) ei(kx x+ky y) dkx dky 4π Here, we used the paraxial approximation: r kx2 + ky2 kx2 + ky2 kz = k 1 − ...
... e−(kx +ky )(w0 /4+iz/2k) ei(kx x+ky y) dkx dky 4π Here, we used the paraxial approximation: r kx2 + ky2 kx2 + ky2 kz = k 1 − ...
EBSD SEM TEM
... However, while the angle at which the first minimum occurs (which is sometimes described as the radius of the Airy disk) depends only on wavelength and aperture size D, the appearance of the diffraction pattern will vary with the intensity (brightness) of the light source. Because any detector (ey ...
... However, while the angle at which the first minimum occurs (which is sometimes described as the radius of the Airy disk) depends only on wavelength and aperture size D, the appearance of the diffraction pattern will vary with the intensity (brightness) of the light source. Because any detector (ey ...
Atom trapping and guiding with a subwavelength
... is made from a hollow optical fiber with light propagating in the glass and tuned far to blue of atomic resonance [5,6]. Inside the fiber, the evanescent wave decays exponentially away from the wall, producing a repulsive potential which guides atoms along the center axis. Alternatively, a reddetune ...
... is made from a hollow optical fiber with light propagating in the glass and tuned far to blue of atomic resonance [5,6]. Inside the fiber, the evanescent wave decays exponentially away from the wall, producing a repulsive potential which guides atoms along the center axis. Alternatively, a reddetune ...
Zinc and chromium abundances in a third
... Lyman α absorption at these redshifts, the new data also stress the importance of building a reasonably large sample of such measurements before drawing conclusions on the nature of the DLA population. 2. The zabs = 1.0093 DLA absorber in EX 0302−223 The serendipitous Einstein X-ray source EX 0302−2 ...
... Lyman α absorption at these redshifts, the new data also stress the importance of building a reasonably large sample of such measurements before drawing conclusions on the nature of the DLA population. 2. The zabs = 1.0093 DLA absorber in EX 0302−223 The serendipitous Einstein X-ray source EX 0302−2 ...
Quadratic behavior of fiber Bragg grating temperature coefficients
... interferometer, and a Fourier transform was applied, resulting in the amplitude spectra of the FBGs. The FWHM of the three gratings’ spectra were measured to be 0.8, 0.2, and 0.9 nm for the 1524-, 1549-, and 1573-nm gratings, respectively. Bragg wavelength can be calculated by a number of techniques ...
... interferometer, and a Fourier transform was applied, resulting in the amplitude spectra of the FBGs. The FWHM of the three gratings’ spectra were measured to be 0.8, 0.2, and 0.9 nm for the 1524-, 1549-, and 1573-nm gratings, respectively. Bragg wavelength can be calculated by a number of techniques ...
3D WHOLE-PROMINENCE FINE STRUCTURE MODELING
... the magneto-frictional technique of van Ballegooijen et al. (2000) and Mackay & van Ballegooijen (2006). In Fig. 2(b) we show an enlarged view of the filament after 3000, 60 second time-steps. Due to the presence of the bipole the main body of the filament separates into two parts. The gap between t ...
... the magneto-frictional technique of van Ballegooijen et al. (2000) and Mackay & van Ballegooijen (2006). In Fig. 2(b) we show an enlarged view of the filament after 3000, 60 second time-steps. Due to the presence of the bipole the main body of the filament separates into two parts. The gap between t ...
Angular directivity of diffracted wave in Bragg-mismatched A. Heifetz
... is equivalent to an effective refraction at both interfaces. The transverse shift of the outgoing beam expected from this model is too small to measure easily for the sample thickness of the order of 50 lm and a Gaussian beam with a waist size of about 1 mm. Note also that this model is consistent wi ...
... is equivalent to an effective refraction at both interfaces. The transverse shift of the outgoing beam expected from this model is too small to measure easily for the sample thickness of the order of 50 lm and a Gaussian beam with a waist size of about 1 mm. Note also that this model is consistent wi ...
Gauthier Abstracts - Department of Electronics
... We provide a basis for automated single-cell sorting based on optical trapping and manipulation using human peripheral blood as a model system. A counterpropagating dual-beam optical-trapping configuration is shown theoretically and experimentally to be preferred due to a greater ability to manipula ...
... We provide a basis for automated single-cell sorting based on optical trapping and manipulation using human peripheral blood as a model system. A counterpropagating dual-beam optical-trapping configuration is shown theoretically and experimentally to be preferred due to a greater ability to manipula ...
of optical-fiber dispersion
... Fig. 4, which illustrates the calculated reflection response and dispersion-delay response of a linearly chirped Bragg grating that has been apodized. In this case, AO= 1550 nm, L = 3.0 cm, KL = 7.0, reflectivity at AO= 99.6%, and the chirp is 0.015%. The application of chirped Bragg gratings to dis ...
... Fig. 4, which illustrates the calculated reflection response and dispersion-delay response of a linearly chirped Bragg grating that has been apodized. In this case, AO= 1550 nm, L = 3.0 cm, KL = 7.0, reflectivity at AO= 99.6%, and the chirp is 0.015%. The application of chirped Bragg gratings to dis ...
Band Gap Extraction from Individual Two
... further insights into the bonding characteristics, oxidation state of the individual atoms and chemical composition of a single nanosheet. The scattering cross section for core-loss excitations is typically several orders of magnitude less than that for the valence loss excitations;43 hence, to obta ...
... further insights into the bonding characteristics, oxidation state of the individual atoms and chemical composition of a single nanosheet. The scattering cross section for core-loss excitations is typically several orders of magnitude less than that for the valence loss excitations;43 hence, to obta ...