Optimal Design of an Ultrasound Transducer for Efficient Acousto-Optic Modulation of Terahertz Radiation

被引：4

作者：

Nikitin, Pavel Alekseevich ^{[1
,2
]}

Gerasimov, Vasily Valerievich ^{[3
,4
]}

机构：

[1] Sci & Technol Ctr Unique Instrumentat RAS, Moscow 117342, Russia

[2] Moscow Power Engn Inst, Krasnokazarmennaya Str 14, Moscow 111250, Russia

[3] Novosibirsk State Univ, Dept Phys, Novosibirsk 630090, Russia

[4] Budker Inst Nucl Phys SB RAS, Novosibirsk 630090, Russia

来源：

MATERIALS | 2022年 / 15卷 / 03期

基金：

俄罗斯科学基金会;

关键词：

acousto-optic interaction; terahertz radiation; diffraction; liquefied inert gas;

D O I：

10.3390/ma15031203

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Acousto-optic (AO) interaction in the terahertz range was investigated with the use of monolithic ultrasound transducers of various widths. Sulfur hexafluoride (SF6) liquefied at a temperature of about 23 & DEG;C and a pressure of 25 bar was used as a medium for AO interaction. The angular and frequency bandwidths of effective AO interaction, as well as the diffraction efficiency per 1 W of the driving electric power, were determined. For the first time, a correct comparison of the AO diffraction efficiency in SF6 with the use of ultrasound transducers with different widths was carried out. In the experiments performed, the highest energy efficiency of the AO modulator was achieved with a transducer with a width of 12 mm.

引用

页数：10

共 32 条

[1] Acousto-Optic Modulation and Deflection of Terahertz Radiation
Nikitin, Pavel Alekseevich
Gerasimov, Vasily Valerievich
Khasanov, Ildus Shevketovich
MATERIALS, 2022, 15 (24)
[2] Simulation of an acousto-optic deflector of terahertz radiation based on a sectioned ultrasound transducer
Nikitin, P. A.
JOURNAL OF OPTICAL TECHNOLOGY, 2023, 90 (02) : 88 - 92
[3] Acousto-optic Modulation of Terahertz Radiation in Liquefied Sulfur Hexafluoride at Room Temperature
Nikitin, Pavel A.
Gerasimov, Vasily V.
Voloshinov, Vitaly B.
JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES, 2020, 41 (03) : 299 - 306
[4] Acousto-optic Modulation of Terahertz Radiation in Liquefied Sulfur Hexafluoride at Room Temperature
Pavel A. Nikitin
Vasily V. Gerasimov
Vitaly B. Voloshinov
Journal of Infrared, Millimeter, and Terahertz Waves, 2020, 41 : 299 - 306
[5] Temperature Effects in an Acousto-Optic Modulator of Terahertz Radiation Based on Liquefied SF6 Gas
Nikitin, Pavel A.
Gerasimov, Vasily V.
Khasanov, Ildus S.
MATERIALS, 2021, 14 (19)
[6] Optimal conditions of the acousto-optic interaction in crystals with gyrotropy
O. V. Shakin
V. N. Belyi
M. A. Kazaryan
Yu. M. Mokrushin
V. I. Sachkov
Bulletin of the Lebedev Physics Institute, 2011, 38 : 225 - 230
[7] Optimal Conditions of the Acousto-Optic Interaction in Crystals with Gyrotropy
Shakin, O. V.
Belyi, V. N.
Kazaryan, M. A.
Mokrushin, Yu M.
Sachkov, V. I.
BULLETIN OF THE LEBEDEV PHYSICS INSTITUTE, 2011, 38 (08) : 225 - 230
[8] Design of acousto-optic cell for backward collinear diffraction observation in the terahertz range
Nikitin, P. A.
Voloshinov, V. B.
Nikitin, A. K.
2018 WAVE ELECTRONICS AND ITS APPLICATION IN INFORMATION AND TELECOMMUNICATION SYSTEMS (WECONF), 2018,
[9] Observation of Acousto-Optic Diffraction of Terahertz Radiation in Liquefied Sulfur Hexafluoride at Room Temperature
Nikitin, Pavel A.
Knyazev, Boris A.
Voloshinov, Vitaly B.
Scheglov, Michael A.
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY, 2020, 10 (01) : 44 - 50
[10] Analytical Angular-Frequency Dependence for an Acousto-Optic Deflector Using a Sectioned Ultrasound Transducer
Nikitin, P. A.
OPTOELECTRONICS INSTRUMENTATION AND DATA PROCESSING, 2024, 60 (03) : 349 - 355

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