aqora

Межзонное однофотонное поглощение и его линейно-циркулярный дихроизм в кристаллах с учетом эффекта когерентного насыщения

В.Р. Расулов, Р.Я. Расулов, Nurillo Ubaydullo ogli Kodirov +1 more

The polarization, spectral and temperature dependences of the single-photon absorption coefficient of polarized radiation are calculated, and its linear-circular dichroism in crystals of tetrahedral symmetry is researched. In this case, the contribution to the coefficients of one- and two-photon absorption of light from the effect of coherent saturation of optical transitions is taken into account.

Physics of the Solid StateJan 1, 20230 citations

Theory of the nonlinear optical properties of semiconductors

H. Haug

Journal of LuminescenceDec 1, 19840 citations

THE LINEAR-CIRCULAR DICHROISM OF INTERBAND SINGLE-PHOTON ABSORPTION OF LIGHT IN CRYSTALS

Rustam Yavkachovich Rasulov, Makhliyo Adkhamovna Mamatova, Umida Mamirjonovna Isomaddinova +1 more

The polarization, spectral, and temperature dependences of the single-photon absorption coefficient of polarized radiation are calculated, and its linear-circular dichroism in crystals of tetrahedral symmetry is studied. In this case, the contribution to the coefficients of onephoton absorption of light from the effect of coherent saturation of optical transitions is taken into account.

Universum Technical sciencesAug 25, 20220 citations

Negative absorption coefficient at indirect transitions in semiconductors

Nikolai G. Basov, Oleg N Krokhin, J. M. Popov

Acta Physica Academiae Scientiarum HungaricaeApr 1, 19624 citations

Quantum Optical Effects in Semiconductors

W. Hoyer, M. Kira, Stefan W. Koch

Advances in Solid State PhysicsOct 12, 20074 citations

Two‐Photon Absorption of CaF2:Eu2+

Eberhard G. Bayer, Gerhard Schaack

Abstract The technique of two‐photon‐absorption spectroscopy with polarized laser‐light is applied to localized excitations of 4f‐electrons in crystals. The relevant selection rules are discussed. A method is outlined for the unique determination of the relative magnitude of partial transition‐probabilities with different types of symmetry using linear and circular polarization of the incident light. The anisotropy of the two‐photon absorption has been measured in single crystals of cubic CaF2:Eu2+ at five different wavenumbers. The relative intensities of transitions belonging to the three different types of symmetry active in two‐photon absorption are constant in the range of the e‐band (26,000 to 29,000 cm−1) but differ from these values at 37,700 cm−1 in the range between the e‐ and the t‐band. This result is discussed in the frame of existing interpretations of the 4f65d‐configuration of Eu2+ in CaF2.Abstract The technique of two‐photon‐absorption spectroscopy with polarized laser‐light is applied to localized excitations of 4f‐electrons in crystals. The relevant selection rules are discussed. A method is outlined for the unique determination of the relative magnitude of partial transition‐probabilities with different types of symmetry using linear and circular polarization of the incident light. The anisotropy of the two‐photon absorption has been measured in single crystals of cubic CaF2:Eu2+ at five different wavenumbers. The relative intensities of transitions belonging to the three different types of symmetry active in two‐photon absorption are constant in the range of the e‐band (26,000 to 29,000 cm−1) but differ from these values at 37,700 cm−1 in the range between the e‐ and the t‐band. This result is discussed in the frame of existing interpretations of the 4f65d‐configuration of Eu2+ in CaF2.

physica status solidi (b)Jan 1, 197037 citations

Dependence of Two-phase Absorption Coefficient on Light Polarization in Cubic-symmetry Semiconductors

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