Phosphate glass useful in high energy lasers
Abstract
A low-or no-silica, low- or no-alkali phosphate glass useful as a laser amplifier in a multiple pass, high energy laser system having a high thermal conductivity, K.sub.90.degree. C. >0.85 W/mK, a low coefficient of thermal expansion, .alpha..sub.20.degree.-300.degree. C. <80.times.10.sup.-7 /.degree.C., low emission cross section, .sigma.<2.5.times.10.sup.-20 cm.sup.2, and a high fluorescence lifetime, .tau.>325 .mu.secs at 3 wt. % Nd doping, consisting essentially of (on an oxide composition basis): wherein Ln.sub.2 O.sub.3 is the sum of lanthanide oxides; .SIGMA.R.sub.2 O is <5, R being Li, Na, K, Cs, and Rb; the sum of Al.sub.2 O.sub.3 and MgO is <24 unless .SIGMA.R.sub.2 O is 0, then the sum of Al.sub.2 O.sub.3 and MgO is <42; and the ratio of MgO to B.sub.2 O.sub.3 is 0.48-4.20.
- Inventors:
-
- Clarks Summit, PA
- Dupont, PA
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 868607
- Patent Number(s):
- US 5173456
- Assignee:
- Schott Glass Technologies, Inc. (Duryea, PA)
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- phosphate; glass; useful; energy; lasers; low-or; no-silica; low-; no-alkali; laser; amplifier; multiple; pass; thermal; conductivity; 90; degree; 85; mk; coefficient; expansion; alpha; 20; -300; 80; times; 10; -7; emission; section; sigma; -20; cm; fluorescence; lifetime; tau; 325; secs; wt; doping; consisting; essentially; oxide; composition; basis; mole; 52-72; 0-; 0-25; zno; 0-31; 0-5; na; cs; rb; mgo; 30; cao; 0-20; bao; sro; sb; nb; ln; pbo; sio; 0-3; lanthanide; oxides; 24; unless; 42; ratio; 48-4; oxide composition; thermal conductivity; consisting essentially; thermal expansion; laser amplifier; phosphate glass; energy laser; multiple pass; composition basis; glass useful; fluorescence lifetime; lanthanide oxides; energy lasers; alkali phosphate; /501/252/
Citation Formats
Hayden, Yuiko T, and Guesto-Barnak, Donna. Phosphate glass useful in high energy lasers. United States: N. p., 1992.
Web.
Hayden, Yuiko T, & Guesto-Barnak, Donna. Phosphate glass useful in high energy lasers. United States.
Hayden, Yuiko T, and Guesto-Barnak, Donna. 1992.
"Phosphate glass useful in high energy lasers". United States. https://www.osti.gov/servlets/purl/868607.
@article{osti_868607,
title = {Phosphate glass useful in high energy lasers},
author = {Hayden, Yuiko T and Guesto-Barnak, Donna},
abstractNote = {A low-or no-silica, low- or no-alkali phosphate glass useful as a laser amplifier in a multiple pass, high energy laser system having a high thermal conductivity, K.sub.90.degree. C. >0.85 W/mK, a low coefficient of thermal expansion, .alpha..sub.20.degree.-300.degree. C. <80.times.10.sup.-7 /.degree.C., low emission cross section, .sigma.<2.5.times.10.sup.-20 cm.sup.2, and a high fluorescence lifetime, .tau.>325 .mu.secs at 3 wt. % Nd doping, consisting essentially of (on an oxide composition basis): wherein Ln.sub.2 O.sub.3 is the sum of lanthanide oxides; .SIGMA.R.sub.2 O is <5, R being Li, Na, K, Cs, and Rb; the sum of Al.sub.2 O.sub.3 and MgO is <24 unless .SIGMA.R.sub.2 O is 0, then the sum of Al.sub.2 O.sub.3 and MgO is <42; and the ratio of MgO to B.sub.2 O.sub.3 is 0.48-4.20.},
doi = {},
url = {https://www.osti.gov/biblio/868607},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}