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Title: Comparing laser induced plasmas formed in diode and excimer pumped alkali lasers

Abstract

Here, lasing on the D 1 transition (6 2P 1/2 → 6 2S 1/2) of cesium can be reached in both diode and excimer pumped alkali lasers. The first uses D 2 transition (6 2S 1/2 → 6 2P 3/2) for pumping, whereas the second is pumped by photoexcitation of ground state Cs-Ar collisional pairs and subsequent dissociation of diatomic, electronically-excited CsAr molecules (excimers). Despite lasing on the same D 1 transition, differences in pumping schemes enables chemical pathways and characteristic timescales unique for each system. We investigate unavoidable plasma formation during operation of both systems side by side in Ar/C 2H 6/Cs.

Authors:
ORCiD logo [1]
  1. Sandia National Lab. (SNL-CA), Livermore, CA (United States); Univ. of Michigan, Ann Arbor, MI (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1415892
Alternate Identifier(s):
OSTI ID: 1421652
Report Number(s):
SAND-2018-0105J
Journal ID: ISSN 1094-4087; OPEXFF; 659760
Grant/Contract Number:
AC04-94AL85000
Resource Type:
Journal Article: Published Article
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 26; Journal Issue: 1; Journal ID: ISSN 1094-4087
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Excimer lasers; Diode lasers; Pumping; Rydberg states; Ionization; Plasmas

Citation Formats

Markosyan, Aram H. Comparing laser induced plasmas formed in diode and excimer pumped alkali lasers. United States: N. p., 2018. Web. doi:10.1364/OE.26.000488.
Markosyan, Aram H. Comparing laser induced plasmas formed in diode and excimer pumped alkali lasers. United States. doi:10.1364/OE.26.000488.
Markosyan, Aram H. Fri . "Comparing laser induced plasmas formed in diode and excimer pumped alkali lasers". United States. doi:10.1364/OE.26.000488.
@article{osti_1415892,
title = {Comparing laser induced plasmas formed in diode and excimer pumped alkali lasers},
author = {Markosyan, Aram H.},
abstractNote = {Here, lasing on the D1 transition (62P1/2 → 62S1/2) of cesium can be reached in both diode and excimer pumped alkali lasers. The first uses D2 transition (62S1/2 → 62P3/2) for pumping, whereas the second is pumped by photoexcitation of ground state Cs-Ar collisional pairs and subsequent dissociation of diatomic, electronically-excited CsAr molecules (excimers). Despite lasing on the same D1 transition, differences in pumping schemes enables chemical pathways and characteristic timescales unique for each system. We investigate unavoidable plasma formation during operation of both systems side by side in Ar/C2H6/Cs.},
doi = {10.1364/OE.26.000488},
journal = {Optics Express},
number = 1,
volume = 26,
place = {United States},
year = {Fri Jan 05 00:00:00 EST 2018},
month = {Fri Jan 05 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1364/OE.26.000488

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