LINEAR-CIRCULAR DICHROISM OF ONE-PHOTON ABSORPTION OF LIGHT IN NARROW-ZONE SEMICONDUCTORS. CONTRIBUTION OF THE EFFECT OF COHERENT SATURATION

Interband two-photon optical transitions are classified and expressions are obtained for the matrix elements in a narrow-gap semiconductor depending on the band parameters, degree of polarization, and light frequency. It is shown that the main contribution to two-photon linear-circular dichroism in narrow-gap semiconductors is made by optical transitions proceeding from the subband of light holes to the conduction band. The dependences of the partial coefficients of interband two-photon absorption of light, which differ from each other by the types of optical transitions, are analyzed depending on the degree of polarization of the light, and a quantitative analysis of the coefficient of linear-circular dichroism of two-photon absorption of light is carried out. Expressions are obtained for the spectral dependence of the coefficient of interband two-photon absorption of light in narrow-gap semiconductors in the Kane model.

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Linearly and circular dichroism in a semiconductor with a complex valence band with allowance for four-photon absorption of light

Physics of the Solid State ◽

10.1134/s1063783417030283 ◽

2017 ◽

Vol 59 (3) ◽

pp. 463-468 ◽

Cited By ~ 1

Author(s):

R. Ya. Rasulov ◽

V. R. Rasulov ◽

I. M. Eshboltaev

Keyword(s):

Circular Dichroism ◽

Valence Band ◽

Photon Absorption ◽

Absorption Of Light ◽

Circular Dichroïsm

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COEFFICIENT OF INTERBAND TWO-PHOTON ABSORPTION OF LIGHT AND ITS LINEAR-CIRCULAR DICHROISM

European Science Review ◽

10.29013/esr-21-1.2-39-43 ◽

2021 ◽

pp. 39-43

Author(s):

V. R. Rasulov ◽

R. Y. Rasulov ◽

B. B. Axmedov ◽

I. A. Muminov ◽

M. X. Qo’chqorov

Keyword(s):

Circular Dichroism ◽

Photon Absorption ◽

Two Photon Absorption ◽

Two Photon ◽

Absorption Of Light ◽

Circular Dichroïsm

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ON THE THEORY OF ONE-PHOTON ABSORPTION OF POLARIZED LIGHT IN NARROW-GAP CRYSTALS. TAKING INTO ACCOUNT THE EFFECT OF COHERENT SATURATION

EurasianUnionScientists ◽

10.31618/esu.2413-9335.2021.5.82.1235 ◽

2021 ◽

Vol 5 (1(82)) ◽

pp. 56-59

Author(s):

Ya. Rustam ◽

B. Bakhodir ◽

M. Ikbol ◽

N. Shokhrukh

Keyword(s):

Circular Dichroism ◽

Polarized Light ◽

Point Of View ◽

Photon Absorption ◽

Narrow Gap ◽

Light Absorption Coefficient ◽

Absorption Of Light ◽

The Matrix ◽

Band Absorption ◽

Circular Dichroïsm

In the article, from a microscopic point of view, the linear-circular dichroism of one-photon between band absorption of light in the Kane approximation in narrow-gap crystals is investigated. The linear-circular dichroism of one-photon absorption of polarized light is calculated taking into account the effect of coherent saturation in photoexcited charge carriers. The matrix elements of one-photon interband optical transitions and the corresponding linear-circular dichroism and the spectral dependence of the light absorption coefficient are calculated.

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