Nonlinear coefficients at telecom wavelengths responsible for the optical and terahertz wave interactions in GaSe:S crystals

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Nonlinear coefficients at telecom wavelengths responsible for the optical and terahertz wave interactions in GaSe:S crystals. / Шевченко, Олеся Николаевна ; Николаев, Назар Александрович; Анцыгин, Валерий Дмитриевич.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 12776, 127760Z, 26.11.2023.

Research output: Contribution to journal › Conference article › peer-review

BibTeX

@article{488e158fc6164c5bbc4fd39d47b5a6d5,

title = "Nonlinear coefficients at telecom wavelengths responsible for the optical and terahertz wave interactions in GaSe:S crystals",

abstract = "Gallium selenide nonlinear optical crystals are effective up- and down-converters of terahertz and infrared frequencies. Their nonlinear characteristics at the telecommunication wavelength have not received enough attention, particularly for sulfur-doped crystals. In order to close this gap, we put forward data on the optical and electro-optical characteristics of GaSe(1-x)Sx crystals (where x = 0, 0.03, 0.12, 0.16, and 0.22) at the wavelength of 1.55 micrometers and in the terahertz range. This study provides an estimate of the GaSe:S crystal{\textquoteright}s nonlinear coefficient d22(ω1, ω2, ω3) responsible for the terahertz wave generation by means of optical rectification and difference frequency generation, where ω1 ≈ ω2 – corresponds to the near infrared range, and ω3 belongs to the subterahertz frequencies. We assume that the value of d22 lies within the range from 13.9 to 20.5 pm/V for the wavelengths of 0.63 – 1.55 μm. The potential of S-doped GaSe crystals to be used as nonlinear optical converters for photonic devices operating at telecom wavelengths is discussed.",

keywords = "terahertz frequencies, millimeter waves, telecommunication wavelength, nonlinear coefficient, gallium selenide, terahertz time-domain spectroscopy, GaSe",

author = "Шевченко, {Олеся Николаевна} and Николаев, {Назар Александрович} and Анцыгин, {Валерий Дмитриевич}",

note = "The studies were supported by the Ministry of Science and Higher Education of the Russian Federation: project № FSUS-2020-0029 and within the state assignment of the Institute of Automation and Electrometry SB RAS. The authors acknowledge the core facilities “VTAN” (Novosibirsk State University) supported by the Ministry of Education and Science of Russia under the agreement №075-12-2021-697, and core facilities “Spectroscopy and Optics” (Institute of Automation and Electrometry SB RAS).; Infrared, Millimeter-Wave, and Terahertz Technologies X 2023 ; Conference date: 15-10-2023 Through 16-10-2023",

year = "2023",

month = nov,

day = "26",

doi = "10.1117/12.2687430",

language = "English",

volume = "12776",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

}

RIS

TY - JOUR

T1 - Nonlinear coefficients at telecom wavelengths responsible for the optical and terahertz wave interactions in GaSe:S crystals

AU - Шевченко, Олеся Николаевна

AU - Николаев, Назар Александрович

AU - Анцыгин, Валерий Дмитриевич

N1 - Conference code: 10

PY - 2023/11/26

Y1 - 2023/11/26

N2 - Gallium selenide nonlinear optical crystals are effective up- and down-converters of terahertz and infrared frequencies. Their nonlinear characteristics at the telecommunication wavelength have not received enough attention, particularly for sulfur-doped crystals. In order to close this gap, we put forward data on the optical and electro-optical characteristics of GaSe(1-x)Sx crystals (where x = 0, 0.03, 0.12, 0.16, and 0.22) at the wavelength of 1.55 micrometers and in the terahertz range. This study provides an estimate of the GaSe:S crystal’s nonlinear coefficient d22(ω1, ω2, ω3) responsible for the terahertz wave generation by means of optical rectification and difference frequency generation, where ω1 ≈ ω2 – corresponds to the near infrared range, and ω3 belongs to the subterahertz frequencies. We assume that the value of d22 lies within the range from 13.9 to 20.5 pm/V for the wavelengths of 0.63 – 1.55 μm. The potential of S-doped GaSe crystals to be used as nonlinear optical converters for photonic devices operating at telecom wavelengths is discussed.

AB - Gallium selenide nonlinear optical crystals are effective up- and down-converters of terahertz and infrared frequencies. Their nonlinear characteristics at the telecommunication wavelength have not received enough attention, particularly for sulfur-doped crystals. In order to close this gap, we put forward data on the optical and electro-optical characteristics of GaSe(1-x)Sx crystals (where x = 0, 0.03, 0.12, 0.16, and 0.22) at the wavelength of 1.55 micrometers and in the terahertz range. This study provides an estimate of the GaSe:S crystal’s nonlinear coefficient d22(ω1, ω2, ω3) responsible for the terahertz wave generation by means of optical rectification and difference frequency generation, where ω1 ≈ ω2 – corresponds to the near infrared range, and ω3 belongs to the subterahertz frequencies. We assume that the value of d22 lies within the range from 13.9 to 20.5 pm/V for the wavelengths of 0.63 – 1.55 μm. The potential of S-doped GaSe crystals to be used as nonlinear optical converters for photonic devices operating at telecom wavelengths is discussed.

KW - terahertz frequencies

KW - millimeter waves

KW - telecommunication wavelength

KW - nonlinear coefficient

KW - gallium selenide

KW - terahertz time-domain spectroscopy

KW - GaSe

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85180157707&origin=inward&txGid=b7d3a48e319ed29e1cc20d174c26f8c0

UR - https://www.mendeley.com/catalogue/54a80316-c630-314f-ad03-c6b7ab936706/

U2 - 10.1117/12.2687430

DO - 10.1117/12.2687430

M3 - Conference article

VL - 12776

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

SN - 0277-786X

M1 - 127760Z

T2 - Infrared, Millimeter-Wave, and Terahertz Technologies X 2023

Y2 - 15 October 2023 through 16 October 2023

ER -

ID: 59395371