Optical properties of borate family nonlinear crystals and their application in sources of intense terahertz radiation

Autor: Dmitry M. Lubenko, Dmitry M. Ezhov, Valery A. Svetlichnyi, Yury M. Andreev, Nazar A. Nikolaev

Publikováno v: Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki, Vol 23, Iss 3, Pp 439-447 (2023)

Nonlinear crystals of the borate family are efficient harmonic generators for intense laser sources because of their high laser-induced damage threshold at near-infrared wavelengths. Recent studies have shown that they exhibit relatively low absorp

Externí odkaz: https://doaj.org/article/7199fb3d1567454f9586e95344c723dd

Dielectric properties of BiB3O6 crystal in the sub-THz range

Autor: Sofya A. Bychkova, Valery A. Svetlichnyi, Valery F. Losev, Lev V. Maximov, D. M. Ezhov, Yury M. Andreev, Nazar N. Nikolaev

Publikováno v: 2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).

We present the thorough studies of dielectric properties of BiB 3 O 6 (BIBO) crystal in the sub-THz range. We observe a large birefringence Δn = nZ −nX = 1.5 and the values of absorption coefficients of all three axes to be less than 0.5 cm−1. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84bb2ed1823608b804b3a5b73bf2c317
https://doi.org/10.1109/irmmw-thz50926.2021.9567351

The multi-photon induced Fano effect

Autor: Konstantin Litvinenko, B. N. Murdin, C. R. Pidgeon, Britta Redlich, Nickolay Abrosimov, Yury M. Andreev, Nguyen H. Le, Zhiming Huang

Publikováno v: Nature communications. 2021. Vol. 12. P. 454 (1-9)
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Nature Communications, 12, 1, pp. 1-9
Nature Communications
Nature Communications, 12, 1-9

The ordinary Fano effect occurs in many-electron atoms and requires an autoionizing state. With such a state, photo-ionization may proceed via pathways that interfere, and the characteristic asymmetric resonance structures appear in the continuum. He

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e421936367fc839a71077a256f264c3
https://doi.org/10.1038/s41467-020-20534-0

Terahertz Birefringence and Dichroism of KTA Crystal

Autor: Jingguo Huang, Yury M. Andreev, Yang Li, Nazar A. Nikolaev, Zhiming Huang, Grigory V. Lanskii, Yanqing Gao, A. A. Mamrashev

Publikováno v: Crystals
Volume 10
Issue 9
Crystals, Vol 10, Iss 730, p 730 (2020)
Crystals. 2020. Vol. 10, № 9. P. 730 (1-6)

For the first time, we present the spectra of all three components of the refractive index and absorption coefficient of the KTiOAsO4 (KTA) crystal measured by the means of terahertz time-domain spectroscopy in the range of 0.3&ndash
2.1 THz. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54de734be9238ad796ad2c3b46a1a80f

Popular nonlinear optical crystals as down-converters of intense laser radiation and materials for millimeter wave applications

Autor: Nazar A. Nikolaev, Yury M. Andreev, Grigory V. Lanskii, A. A. Mamrashev

Publikováno v: XIV International Conference on Pulsed Lasers and Laser Applications.

We present a detailed study of the dielectric constant and loss tangent of popular nonlinear optical crystals LBO, β-BBO, and KTP in the range of 0.6-1.5 mm (200-500 GHz) at room and liquid nitrogen (77 K) temperatures. These materials have a strong

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b8920489b06fad8fb9b22233b7c1cc75
https://doi.org/10.1117/12.2554383