Empirical Relation between the Linear and the Third-Order Nonlinear Optical Susceptibilities

Wang, Charles C.

doi:10.1103/physrevb.2.2045

Cited by 420 publications

(81 citation statements)

References 20 publications

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“…Approximations of this sort were made long ago by Wang,20 and are appropriate when the applied radiation is far below resonance (2ωh << (E 1 − E 0 )), where E i are energies of adiabatic electronic states). This condition roughly holds for the organic species studied here where ∼700 nm light is applied.…”

Section: Non-resonant Appoximationmentioning

confidence: 99%

Modeling Coherent Anti-Stokes Raman Scattering with Time-Dependent Density Functional Theory: Vacuum and Surface Enhancement.

Parkhill

Rappoport

Aspuru‐Guzik

2011

J. Phys. Chem. Lett.

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We present the first density functional simulations of coherent anti-Stokes Raman scattering (CARS) and an analysis of the chemical effects upon binding to a metal surface. Spectra are obtained from first-principles electronic structure calculations and are compared with available experiments and previously available theoretical results following from Hartree–Fock polarizability derivatives. A first approximation to the nonresonant portion of the CARS signal is also explored. We examine the silver pyridine cluster models of the surface chemical signal enhancement, previously introduced for surface-enhanced Raman scattering. Chemical resonant intensity enhancements of roughly 102 are found for several model clusters. The prospects of realizing further enhancement of CARS signal with metal surfaces is discussed in light of the predicted chemical enhancements.

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Section: Non-resonant Appoximationmentioning

confidence: 99%

Modeling Coherent Anti-Stokes Raman Scattering with Time-Dependent Density Functional Theory: Vacuum and Surface Enhancement.

Parkhill

Rappoport

Aspuru‐Guzik

2011

J. Phys. Chem. Lett.

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“…due to their high refractive index, large secondary electron emission coefficient, overall chemical stability and low melting point [1][2][3]. The successful application of lead-silicate glasses is determined by specific peculiarities of their electron energy spectrum which is characterized by the high density of localized electronic states in the tails of the energy bands (the so-called ''tail-states'').…”

Section: Introductionmentioning

confidence: 99%

An intrinsic luminescence in binary lead silicate glasses

et al. 2012

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a b s t r a c tThe low-temperature photoluminescence (PL) of xPbO Á (1 À x)SiO 2 glasses (x = 0.20-0.75) was studied at T = 10 K. The recorded PL-spectra are a superposition of three spectral components with maxima located at 1.8 eV (identified as Pb 6p ? metal-bridging O2p radiative electron transition, the ''R''-band), 2.0 eV (Pb 6p ? non-bridging O2p, the ''O''-band) and 2.55 eV (Pb 6p ? Pb 6s, the ''B''-band), respectively. It was found the essential link for ''R'', ''O'' and ''B'' PL-bands with chemical composition x of the glasses under study. These concentration dependences are expressed as mutual PL-intensity variations for each recorded luminescence band that allowed to determine their origin. The shape of established dependences well coincides with numerical data on NBO-and MBO-density of chemical bonding, reported previously.The overall PL-manner within the temperature range of 10-295 K is described by an empirical Street's law. It was shown that experimental photoluminescence quenching curves may be precisely approximated as a superposition of Mott relationships for nonequivalent luminescence centers. The obtained distribution of PL-centers on the activation energy for luminescence quenching reflects the essential donation of the low-energy states into the overall PL-process. The width of this energy distribution affects by the type of PL-emission band and the disordering degree in the arrangement of local PL-centers of a certain kind.

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“…Chalcogenide glasses have a high refractive index, up to 2 to 3. According to Miller's formula [47], the higher the refractive index of a material, the higher its nonlinear coefficient n2. As a consequence, the third-order Kerr effect of chalcogenide is several thousand times higher than that of silica [48][49][50], which means that chalcogenide glasses are considered excellent media for all-optical signal processing [41].…”

Section: Chalcogenide Glassmentioning

confidence: 99%

Compound Glass Microsphere Resonator Devices

Yu¹,

Lewis²,

Farrell³

et al. 2018

Preprint

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Abstract:In recent years, compound glass microsphere resonator devices have attracted increasing interest and have been widely used in sensing, microsphere lasers, and nonlinear optics. Compared with traditional silica resonators, compound glass microsphere resonators have many significant and attractive properties, such as high-Q factor, an ability to achieve high rare earth ion, wide infrared transmittance and low phonon energy. This review provides a summary and a critical assessment of the fabrication and the optical characterization of compound glasses and the related fabrication and applications of compound glass microsphere resonators.

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Empirical Relation between the Linear and the Third-Order Nonlinear Optical Susceptibilities

Cited by 420 publications

References 20 publications

Modeling Coherent Anti-Stokes Raman Scattering with Time-Dependent Density Functional Theory: Vacuum and Surface Enhancement.

Modeling Coherent Anti-Stokes Raman Scattering with Time-Dependent Density Functional Theory: Vacuum and Surface Enhancement.

An intrinsic luminescence in binary lead silicate glasses

Compound Glass Microsphere Resonator Devices

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