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A narrow band, green‐red colour centre laser in LiF fabricated by femtosecond laser pulses
Author(s) -
Kurobori T.,
Sakai T.,
Aoshima S.
Publication year - 2007
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200673865
Subject(s) - femtosecond , laser , materials science , optics , lithium fluoride , optoelectronics , absorption (acoustics) , dielectric , absorption band , x ray laser , excitation , laser power scaling , chemistry , physics , inorganic chemistry , quantum mechanics
Recent advances in high‐intensity femtosecond (fs) laser pulses have made it possible to encode non‐erasable functional micro‐structures inside almost any type of photo‐insensitive transparent materials. We focus our attention on bulk lithium fluoride (LiF) because of its broad emission band from the green‐to‐red spectral range under excitation of a single absorption band at about 450 nm. Here a room temperature, visible laser action in LiF from a distributed‐feedback laser with embedded fine‐pitched gratings written by fs pulses and from a laser‐active colour centre laser with multilayer dielectric mirrors has been demonstrated. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)