Photoluminescence, stimulated and laser emission in CuInSe2 crystals

I. E. Svitsiankou; V. N. Pavlovskii; E. V. Lutsenko; G. P. Yablonskii; A. V. Mudryi; O. M. Borodavchenko; V. D. Zhivulko; R. W. Martin; M. V. Yakushev

doi:10.1063/5.0060076

Photoluminescence, stimulated and laser emission in CuInSe₂ crystals

I. E. Svitsiankou, V. N. Pavlovskii, E. V. Lutsenko, G. P. Yablonskii, A. V. Mudryi, O. M. Borodavchenko, V. D. Zhivulko, R. W. Martin, M. V. Yakushev

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Abstract

Excitonic quality CuInSe₂ crystals were studied using low-temperature (10 K) photoluminescence (PL) excited by continuous wave and nanosecond pulsed lasers at power densities from 0.01 kW/cm² to 76 kW/cm² . Increasing the excitation power density level to 26 kW/cm² resulted in the appearance of a stimulated emission SE-band in the PL spectra at 1.035 eV. Further increase in the excitation level to 39 kW/cm² generated on the top of the SE band a structure of equidistant sharp lines attributed to laser emission. at 1.035 eV. Further increase in the excitation level to 39 kW/cm² generated a structure of equidistant sharp lines attributed to laser emission on the top of the SE band. The lasing regime suggests the presence of volumes with parallel faces (microcracks or grain boundaries), which act as laser mirrors within the CuInSe₂ crystals.

Original language	English
Article number	212103
Number of pages	6
Journal	Applied Physics Letters
Volume	119
Issue number	21
DOIs	https://doi.org/10.1063/5.0060076
Publication status	Published - 23 Nov 2021

Keywords

CuInSe2
crystal
photoluminescence
pulsed laser excitation
stimulated emission
lasing

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@article{0f4c70d823a947838e9a12e4060595c3,

title = "Photoluminescence, stimulated and laser emission in CuInSe2 crystals",

abstract = "Excitonic quality CuInSe2 crystals were studied using low-temperature (10 K) photoluminescence (PL) excited by continuous wave and nanosecond pulsed lasers at power densities from 0.01 kW/cm2 to 76 kW/cm2 . Increasing the excitation power density level to 26 kW/cm2 resulted in the appearance of a stimulated emission SE-band in the PL spectra at 1.035 eV. Further increase in the excitation level to 39 kW/cm2 generated on the top of the SE band a structure of equidistant sharp lines attributed to laser emission. at 1.035 eV. Further increase in the excitation level to 39 kW/cm2 generated a structure of equidistant sharp lines attributed to laser emission on the top of the SE band. The lasing regime suggests the presence of volumes with parallel faces (microcracks or grain boundaries), which act as laser mirrors within the CuInSe2 crystals.",

keywords = "CuInSe2, crystal, photoluminescence, pulsed laser excitation, stimulated emission, lasing",

author = "Svitsiankou, {I. E.} and Pavlovskii, {V. N.} and Lutsenko, {E. V.} and Yablonskii, {G. P.} and Mudryi, {A. V.} and Borodavchenko, {O. M.} and Zhivulko, {V. D.} and Martin, {R. W.} and Yakushev, {M. V.}",

year = "2021",

month = nov,

day = "23",

doi = "10.1063/5.0060076",

language = "English",

volume = "119",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

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TY - JOUR

T1 - Photoluminescence, stimulated and laser emission in CuInSe2 crystals

AU - Svitsiankou, I. E.

AU - Pavlovskii, V. N.

AU - Lutsenko, E. V.

AU - Yablonskii, G. P.

AU - Mudryi, A. V.

AU - Borodavchenko, O. M.

AU - Zhivulko, V. D.

AU - Martin, R. W.

AU - Yakushev, M. V.

PY - 2021/11/23

Y1 - 2021/11/23

N2 - Excitonic quality CuInSe2 crystals were studied using low-temperature (10 K) photoluminescence (PL) excited by continuous wave and nanosecond pulsed lasers at power densities from 0.01 kW/cm2 to 76 kW/cm2 . Increasing the excitation power density level to 26 kW/cm2 resulted in the appearance of a stimulated emission SE-band in the PL spectra at 1.035 eV. Further increase in the excitation level to 39 kW/cm2 generated on the top of the SE band a structure of equidistant sharp lines attributed to laser emission. at 1.035 eV. Further increase in the excitation level to 39 kW/cm2 generated a structure of equidistant sharp lines attributed to laser emission on the top of the SE band. The lasing regime suggests the presence of volumes with parallel faces (microcracks or grain boundaries), which act as laser mirrors within the CuInSe2 crystals.

AB - Excitonic quality CuInSe2 crystals were studied using low-temperature (10 K) photoluminescence (PL) excited by continuous wave and nanosecond pulsed lasers at power densities from 0.01 kW/cm2 to 76 kW/cm2 . Increasing the excitation power density level to 26 kW/cm2 resulted in the appearance of a stimulated emission SE-band in the PL spectra at 1.035 eV. Further increase in the excitation level to 39 kW/cm2 generated on the top of the SE band a structure of equidistant sharp lines attributed to laser emission. at 1.035 eV. Further increase in the excitation level to 39 kW/cm2 generated a structure of equidistant sharp lines attributed to laser emission on the top of the SE band. The lasing regime suggests the presence of volumes with parallel faces (microcracks or grain boundaries), which act as laser mirrors within the CuInSe2 crystals.

KW - CuInSe2

KW - crystal

KW - photoluminescence

KW - pulsed laser excitation

KW - stimulated emission

KW - lasing

U2 - 10.1063/5.0060076

DO - 10.1063/5.0060076

M3 - Article

SN - 0003-6951

VL - 119

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 21

M1 - 212103

ER -