Quasi-cw laser action through pulsed laser pumping of metastable states in dense vapors

M. A. Khan; E. E. Khawaja

doi:10.1016/0030-4018(91)90500-D

Quasi-cw laser action through pulsed laser pumping of metastable states in dense vapors

M. A. Khan^*
, E. E. Khawaja

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

A new scheme is proposed for exciting laser action employing resonant pumping of metastable states together with collisional energy transfer in hot and dense vapors. The specific case of Ca is presented here as an example. Large population inversions and gain on Ca 4s5s³S₁-4s4p³P_2,1,0 transitions at 6162.17 Å, 6122.22 Å and 6102.72 Å are reported. A unique feature here is that these population inversions are maintained over long periods of time after the exciting laser pulse, extending from 90 μs in the case of J=0 state up to 250 μs in the case of J=1 state. This offers an unusual possibility of making quasi-continuous laser sources from short pulse excitation.

Original language	English
Pages (from-to)	386-392
Number of pages	7
Journal	Optics Communications
Volume	86
Issue number	5
DOIs	https://doi.org/10.1016/0030-4018(91)90500-D
State	Published - 1 Dec 1991

Bibliographical note

Funding Information:
This work is part of Laser ResearchP rogramsup-ported by the Research Institute, King Fahd University of Petroleum& Minerals.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/0030-4018(91)90500-D

Cite this

@article{18625fb666d146089dc7e5e69bea6ffd,

title = "Quasi-cw laser action through pulsed laser pumping of metastable states in dense vapors",

abstract = "A new scheme is proposed for exciting laser action employing resonant pumping of metastable states together with collisional energy transfer in hot and dense vapors. The specific case of Ca is presented here as an example. Large population inversions and gain on Ca 4s5s3S1-4s4p3P2,1,0 transitions at 6162.17 {\AA}, 6122.22 {\AA} and 6102.72 {\AA} are reported. A unique feature here is that these population inversions are maintained over long periods of time after the exciting laser pulse, extending from 90 μs in the case of J=0 state up to 250 μs in the case of J=1 state. This offers an unusual possibility of making quasi-continuous laser sources from short pulse excitation.",

author = "Khan, \{M. A.\} and Khawaja, \{E. E.\}",

note = "Funding Information: This work is part of Laser ResearchP rogramsup-ported by the Research Institute, King Fahd University of Petroleum\& Minerals.",

year = "1991",

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day = "1",

doi = "10.1016/0030-4018(91)90500-D",

language = "English",

volume = "86",

pages = "386--392",

journal = "Optics Communications",

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TY - JOUR

T1 - Quasi-cw laser action through pulsed laser pumping of metastable states in dense vapors

AU - Khan, M. A.

AU - Khawaja, E. E.

N1 - Funding Information: This work is part of Laser ResearchP rogramsup-ported by the Research Institute, King Fahd University of Petroleum& Minerals.

PY - 1991/12/1

Y1 - 1991/12/1

N2 - A new scheme is proposed for exciting laser action employing resonant pumping of metastable states together with collisional energy transfer in hot and dense vapors. The specific case of Ca is presented here as an example. Large population inversions and gain on Ca 4s5s3S1-4s4p3P2,1,0 transitions at 6162.17 Å, 6122.22 Å and 6102.72 Å are reported. A unique feature here is that these population inversions are maintained over long periods of time after the exciting laser pulse, extending from 90 μs in the case of J=0 state up to 250 μs in the case of J=1 state. This offers an unusual possibility of making quasi-continuous laser sources from short pulse excitation.

AB - A new scheme is proposed for exciting laser action employing resonant pumping of metastable states together with collisional energy transfer in hot and dense vapors. The specific case of Ca is presented here as an example. Large population inversions and gain on Ca 4s5s3S1-4s4p3P2,1,0 transitions at 6162.17 Å, 6122.22 Å and 6102.72 Å are reported. A unique feature here is that these population inversions are maintained over long periods of time after the exciting laser pulse, extending from 90 μs in the case of J=0 state up to 250 μs in the case of J=1 state. This offers an unusual possibility of making quasi-continuous laser sources from short pulse excitation.

UR - https://www.scopus.com/pages/publications/0000380280

U2 - 10.1016/0030-4018(91)90500-D

DO - 10.1016/0030-4018(91)90500-D

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AN - SCOPUS:0000380280

SN - 0030-4018

VL - 86

SP - 386

EP - 392

JO - Optics Communications

JF - Optics Communications

IS - 5

ER -

Quasi-cw laser action through pulsed laser pumping of metastable states in dense vapors

Abstract

Bibliographical note

ASJC Scopus subject areas

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