Anisotropy of nonlinear optical absorption of LBO crystals at 355  nm

Vershinin, O.; Konyashkin, Aleksey V.; Ryabushkin, O. A.

doi:10.1364/ol.43.000058

Cited by 14 publications

(2 citation statements)

References 9 publications

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“…Объектом исследования в настоящей работе являлся кристалл LBO, который широко применяется для генерации гармоник мощного лазерного излучения в видимой и УФ частях спектра. Кристаллы LBO отличаются низким линейным коэффициентом оптического поглощения [4,5] и высоким порогом оптического разрушения (для излучения с длиной волны 1.064 µm и длительностью импульса 1.3 ns он составляет 24.6 J/cm 2 ) [4,6]. На сегодняшний день в кристаллах LBO были получены 700 и 160 W выходной мощности на длинах волн второй (532 nm) и третьей (355 nm) гармоник излучения иттербиевого лазера с эффективностями 70% и 30% соответственно [7].…”

Section: Introductionunclassified

Исследование Влияния Ионной Проводимости На Коэффициент Оптического Поглощения Кристаллов Трибората Лития При Воздействии Высокоинтенсивного Непрерывного Лазерного Излучения

Grishchenko¹,

Стирманов²,

Коняшкин³

et al. 2020

Журнал Технической Физики

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Section: Introductionunclassified

Исследование Влияния Ионной Проводимости На Коэффициент Оптического Поглощения Кристаллов Трибората Лития При Воздействии Высокоинтенсивного Непрерывного Лазерного Излучения

Grishchenko¹,

Стирманов²,

Коняшкин³

et al. 2020

Журнал Технической Физики

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“…It has been applied in various fields including materials, physical optics, astronomy, and so on. [7][8][9][10][11] Linear dichroism plays an important role in the study of material properties. In 1815, Biot used tourmaline's dichroism to manufacture the first batch of tourmaline polarizer.…”

Section: Introductionmentioning

confidence: 99%

Controllable transmission of vector beams in dichroic medium

Wang

Yang

et al. 2019

Chinese Phys. B

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Vector beams with spatially varying polarization distribution in the wavefront plane have received increasing attention in recent years. The manipulation of vector beams both in intensity and polarization distributions is highly desired and under development. In this work, we study the transmission property of vector beams through warm rubidium vapor and realize controllable transmission of vector beams based on atomic dichroism. By utilizing the linearly polarized beam and vector beams as the pump and probe beams in a pump-probe configuration, a spatially-dependent dichroism can be obtained, which leads to spatially varied absorption of the probe beam. The controllable intensity distribution of the probe beam, as a two-petal pattern, can rotate with the variation of the pump beam's polarization states. We experimentally demonstrate the mechanism of dichroism with linear polarization light and provide an explanation based on the optical pumping effect. Alternatively, the varying trend of the probe beam's intensity is also interpreted by utilizing the Jones matrix. Our results are thus beneficial for providing potential applications in optical manipulation in atomic ensembles.

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Measurements of small optical absorption and scattering coefficients of high-power polarised laser radiation in lithium triborate crystals

Grishchenko¹,

Vorob'ev²,

Ostapiv³

et al. 2022

Quantum Electron.

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We present the results of measurements of low optical absorption and scattering coefficients in lithium triborate crystals using the method of piezoelectric resonance laser calorimetry under the action of polarised single-mode laser radiation at wavelengths of 1070 and 532 nm in the power ranges of 50–300 and 5–50 W, respectively. It is shown that when radiation propagates along the crystal axis a, these coefficients remain constant in the specified power ranges and do not depend on the direction of laser radiation polarisation. The measured optical scattering coefficients are compared with the results obtained by the method of integrating spheres.

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Anisotropy of nonlinear optical absorption of LBO crystals at 355 nm

Abstract: The dependence of the nonlinear optical absorption coefficients on the intensity and polarization of pulsed laser radiation at 355 nm was investigated for lithium triborate (LBO) crystals using the piezoelectric resonance laser calorimetry.

Cited by 14 publications

References 9 publications

Controllable transmission of vector beams in dichroic medium

Measurements of small optical absorption and scattering coefficients of high-power polarised laser radiation in lithium triborate crystals

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