25%Eu : KGd(WO{sub 4}){sub 2} laser crystal: spectroscopy and lasing on the {sup 5}D{sub 0}{yields}{sup 7}F{sub 4} transition

Journal Article · Thu Mar 31 00:00:00 EDT 2011 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2011V041N03ABEH014495· OSTI ID:21544796

Bagaev, Sergei N; Dashkevich, V I; Orlovich, Valentin A; Vatnik, S M; Pavlyuk, A A; Yurkin, A M

25%Eu : KGd(WO{sub 4}){sub 2} crystal is grown by a modified Czochralski method and its spectral and lasing properties are studied. Generation of stimulated emission in this crystal on the {sup 5}D{sub 0}{yields}{sup 7}F{sub 4} transition of the Eu{sup 3+} ion is obtained, as far as we know, for the first time. The laser operates at room temperature at a wavelength of {approx}703 nm under pumping into the {sup 7}F{sub 0}{yields}{sup 5}D{sub 1} absorption band of the europium ion by the second harmonic of a Q-switched Nd : KGW laser ({lambda}{sub pump}= 533.6 nm). With a 9.4-mm-long active element, the output energy in the free-running regime reached 244 {mu}J, while the optical efficiency was 1.5%. (lasers and active media)

• OSTI ID: 21544796
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 41, Issue 3; Other Information: DOI: 10.1070/QE2011v041n03ABEH014495; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
CRYSTALS
CZOCHRALSKI METHOD
EUROPIUM IONS
LASERS
SPECTROSCOPY
STIMULATED EMISSION
TEMPERATURE RANGE 0273-0400 K
TUNGSTATES
WAVELENGTHS
CHARGED PARTICLES
CRYSTAL GROWTH METHODS
EMISSION
ENERGY-LEVEL TRANSITIONS
IONS
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
SORPTION
TEMPERATURE RANGE
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS