Enhanced performance of the iodine monofluoride (491 nm) laser

Journal Article · Sat Sep 01 04:00:00 EDT 1990 · IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (USA)

OSTI ID:5936924

Knae, K Y; Eden, J G ^[1]

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1. Everitt Lab., Univ. of Illinois, Urbana, IL (US)

The impact of substituting HI for CF{sub 3}I as the iodine donor in the discharge-pumped iodine monofluoride (IF) laser at 491 nm ha been investigated. More than an order of magnitude improvement in output pulse energy has been observed, which is attributed to more efficient production of low-lying ({ital v}{prime} {lt} 5) vibrational levels of the IF ({ital D}{prime}) ion pair state. Preliminary evidence indicates that vibrational excitation of HI ({ital X}{sup 1}{Sigma}{sup +}) assists in the relaxation of the {ital D}{prime} state population. The increased net small signal gain of {ital D}{prime} {r arrow} {ital A}{prime}({ital v}{prime} = 0 {r arrow} {ital v}{double prime}) transitions in HI-containing gas mixtures has the effect of intensifying the 491 nm (0,15) bandhead relative to the lower gain transitions.

• OSTI ID: 5936924
• Journal Information: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (USA) Vol. 26:9; ISSN 0018-9197; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
AMPLIFICATION
EMISSION
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
FLUORIDES
FLUORINE COMPOUNDS
GAIN
HALIDES
HALOGEN COMPOUNDS
IODINE COMPOUNDS
IODINE FLUORIDES
LASERS
OPTICAL PUMPING
PERFORMANCE
PUMPING
STIMULATED EMISSION
VIBRATIONAL STATES