Published August 2003 | Version v1
Journal article Metadata-only

Pulsed-laser deposition of a Nd:KGd(WO4)2 waveguide in Ar and O2 environments

Creators

  • 1. Keio University, Department of Electronics and Electrical Engineering (Japan)

Description

Thin-film Nd-doped potassium gadolinium tungstate (Nd:KGW or KGd(WO4)2) waveguides are deposited on (1102)sapphire or (100)YAG substrates by KrF laser ablation of potassium-rich ceramic targets in Ar and O2. The dependence of the stoichiometry, crystallinity and waveguide properties of the films on the environmental gas pressure and substrate temperature is studied. Highly textured crystalline (110) KGW films are grown. An optical waveguide loss as low as 3 dB/cm is obtained for the films grown in Ar. The as-grown films are optically active. Upon annealing at 900 °C in air, the crystallinity and the properties of the emission spectra are dramatically improved.

Additional details

Identifiers

DOI
10.1007/s00339-003-2094-8;

Publishing Information

Journal Title
Applied Physics. A, Materials Science and Processing (Print)
Journal Volume
77
Journal Issue
3-4
Journal Page Range
p. 395-398
ISSN
0947-8396
CODEN
APAMFC

INIS

Country of Publication
Germany
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
54062578
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
CERAMICS; DOPED MATERIALS; EMISSION SPECTRA; ENERGY BEAM DEPOSITION; GADOLINIUM; KRYPTON FLUORIDE LASERS; LASER RADIATION; NEODYMIUM LASERS; POTASSIUM; PULSED IRRADIATION; SAPPHIRE; STOICHIOMETRY; SUBSTRATES; THIN FILMS; TUNGSTATES; WAVEGUIDES
Descriptors DEC
ALKALI METALS; CORUNDUM; DEPOSITION; ELECTROMAGNETIC RADIATION; ELEMENTS; EXCIMER LASERS; FILMS; GAS LASERS; IRRADIATION; LASERS; MATERIALS; METALS; MINERALS; OXIDE MINERALS; OXYGEN COMPOUNDS; RADIATIONS; RARE EARTHS; REFRACTORY METAL COMPOUNDS; SOLID STATE LASERS; SPECTRA; SURFACE COATING; TRANSITION ELEMENT COMPOUNDS; TUNGSTEN COMPOUNDS

Optional Information

Copyright
Copyright (c) 2003 Springer-Verlag
Notes
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