Bibliographic Details
| Title: |
Bulk Photovoltaic Effect in Gyrotropic Crystals. |
| Authors: |
Fridkin, V. M.1 (AUTHOR), Golovina, T. G.1 (AUTHOR) tatgolovina@mail.ru, Konstantinova, A. F.1 (AUTHOR) |
| Source: |
Crystallography Reports. Aug2025, Vol. 70 Issue 4, p618-629. 12p. |
| Subjects: |
Photovoltaic effect, Photorefractive effect, Crystal optics, Optical polarization, Optical rotation |
| Abstract: |
The effect of optical activity on the linear and circular bulk photovoltaic effect in crystals without a center of symmetry is investigated. It is shown that there is a phase shift of the linear photovoltaic current JL, which is opposite for the right- and left crystals, and a change in modulus. The circular photovoltaic current JC does not change in phase in dependence of the optical activity value but depends on the absorption and circular dichroism. The dependences of the JL current on the polarization of incident light are calculated taking into account the optical activity for the right and left Bi12SiO20, Bi12GeO20, and Bi12TiO20 crystals (class 23). Similar calculations of JL were performed for the right crystals Pb5Ge3O11 (class 3); La3Ga5SiO14 with impurities of Pr, Fe, Cr, and Mn, Ca3TaGa3Si2O14 (class 32); and Er(HCOO)3⋅2H2O (class 222) in the case where light propagates in the direction of the optical axis. Examples of the JC value for crystals Pb5Ge3O11; La3Ga5SiO14 with of Co, Cr, and Fe impurities; and α-HgS (class 32) are given. It is shown that consideration of optical activity is necessary when studying the photorefractive effect in crystals. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
