Tunable lasers at 1080 nm for helium optical pumping

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.346657· OSTI ID:7066513

Schearer, L D; Tin, P ^[1]

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1. University of Missouri-Rolla, Rolla, Missouri 65401 (USA). Laboratory for Atomic and Molecular Research University of Missouri-Rolla, Rolla, Missouri 65401 (USA). Department of Physics

We describe the current status of tunable, cw, solid-state lasers in the infrared region of the spectrum which may be tuned to the helium resonance transition near 1083 nm. The principal use for these laser devices is the optical pumping of {sup 3}He and {sup 4}He atoms via the 2{sup 3}{ital S}{sub 1} metastable state. The tunable lasers we have examined include Nd{sup 3+}-doped YAlO{sub 3}, La{sub {ital x}}Nd{sub 1{minus}{ital x}}MgAl{sub 11}O{sub 19} ({ital x} {similar to}0.15), Nd:LiNbO{sub 3}, and Nd:silica glass fibers. Power outputs from these lasers range from a milliwatt to more than 1 W at the helium transition. Laser emission bandwidths range from less than 40 MHz (single-mode operation) to several GHz. Applications include magnetometry, dense nuclear targets, and polarized electron beams.

• OSTI ID: 7066513
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 68:3; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
ALKALI METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHARGED PARTICLES
ELECTROMAGNETIC RADIATION
ENERGY LEVELS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXCITED STATES
GLASS
HELIUM 3
HELIUM 4
HELIUM ISOTOPES
INFRARED RADIATION
IONS
ISOTOPES
LASERS
LIGHT NUCLEI
LITHIUM COMPOUNDS
METASTABLE STATES
NEODYMIUM IONS
NIOBATES
NIOBIUM COMPOUNDS
NUCLEI
OPTICAL PUMPING
OXIDES
OXYGEN COMPOUNDS
PUMPING
RADIATIONS
REFRACTORY METAL COMPOUNDS
SILICON COMPOUNDS
SILICON OXIDES
SOLID STATE LASERS
STABLE ISOTOPES
TRANSITION ELEMENT COMPOUNDS
TUNING
YTTRIUM COMPOUNDS