Study of a ruby laser with a passive shutter based on a LiF crystal with F/sub 2//sup +/ color centers

Journal Article · Mon Dec 01 04:00:00 EST 1986 · J. Appl. Spectrosc. (Engl. Transl.); (United States)

OSTI ID:6031525

Asaenok, N A; Ivanov, N A; Koval'chuk, A S; Loiko, M M; Chepurnoi, V A; Shkadarevich, A P

A large body of current work is dedicated to the study of materials with saturable absorption suitable for passive modulation of the Q of ruby lasers. LiF crystals with F/sub 2//sup +/ color centers are proposed as a passive shutter; however, their prospects to date are unclear. The authors' goal in this paper is a more detailed study of the characteristics of a ruby laser with a passive shutter of LiF:F/sub 2//sup +/ obtained by irradiating LiF crystals with gamma radiation from a cobalt-60 source. Crystals with an OH additive were used to obtain stable LiF:F/sub 2//sup +/. The passive shutter used in the experiments was a parallelepiped 20 x 20 x 9 mm. The initial transmittance of the crystal at the 694 nm wavelength was 41%. To determine these and other parameters of a passive shutter based on these crystals, the authors based their method on measurement of the shutter transmission as a function of the amount of energy of the incident pulsed radiation. The most homogeneous central portion of the beam of the pulsed ruby laser radiation was selected using a diaphragm 5 mm in diameter and was directed to the sample under study.

• OSTI ID: 6031525
• Journal Information: J. Appl. Spectrosc. (Engl. Transl.); (United States), Journal Name: J. Appl. Spectrosc. (Engl. Transl.); (United States) Vol. 44:6; ISSN JASYA
• Country of Publication: United States
• Language: Russian

Related Subjects

36 MATERIALS SCIENCE
360602 -- Other Materials-- Structure & Phase Studies
360605 -- Materials-- Radiation Effects
42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ABSORPTIVITY
ALKALI METAL COMPOUNDS
BEAM OPTICS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CAVITY RESONATORS
COBALT 60
COBALT ISOTOPES
COLOR CENTERS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ENERGY-LEVEL TRANSITIONS
EQUIPMENT
EXCITATION
FLUORIDES
FLUORINE COMPOUNDS
GAMMA RADIATION
HALIDES
HALOGEN COMPOUNDS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IONIC CRYSTALS
IONIZING RADIATIONS
IRRADIATION
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LASER MATERIALS
LASER RADIATION
LASERS
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
MATERIALS
MATERIALS TESTING
MINUTES LIVING RADIOISOTOPES
MODULATION
NUCLEI
ODD-ODD NUCLEI
OPTICAL PROPERTIES
OPTICAL PUMPING
OPTIMIZATION
PERFORMANCE TESTING
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
POINT DEFECTS
PUMPING
Q-SWITCHING
RADIATION EFFECTS
RADIATIONS
RADIOISOTOPES
RESONATORS
RUBY LASERS
SHUTTERS
SOLID STATE LASERS
STABILIZATION
TESTING
VACANCIES
YEARS LIVING RADIOISOTOPES