Relaxation of the 6p {sup 2}P{sup 0}{sub 3/2} metastable state in a self-terminating thallium laser

Journal Article · Wed Dec 31 04:00:00 EST 2008 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2008V038N12ABEH013795· OSTI ID:21466513

Bokhan, P A; Zakrevskii, D E; Kim, V A ^[1]

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1. Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk (Russian Federation)

We present the results of an experimental study of a Tl vapour/Ar mixture as an active medium. Under optical excitation of thallium to the 6d {sup 2}D{sub 3/2} state, we have achieved lasing at {lambda} = 1.3 {mu}m (7p {sup 2}P{sup 0}{sub 1/2} - 7s {sup 2}S{sub 1/2} transition) and 535 nm (7s {sup 2}S{sub 1/2} - 6p {sup 2}P{sup 0}{sub 3/2}) through cascade transitions from the 6d {sup 2}D{sub 3/2} state to the upper laser levels. The electron deexcitation rate of the 6p {sup 2}P{sup 0}{sub 3/2} metastable state is no slower than 1.5x10{sup -8} cm{sup 3} s{sup -1}, meaning that this process cannot prevent self-terminating laser action at the 7s {sup 2}S{sub 1/2} - 6p {sup 2}P{sup 0}{sub 3/2} transition under electron-beam pumping at pulse repetition rates up to 100 kHz. (active media)

• OSTI ID: 21466513
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 12 Vol. 38; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
DE-EXCITATION
DISPERSIONS
ELECTRICAL PUMPING
ELECTRON BEAM PUMPING
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
FERMIONS
FLUIDS
FREQUENCY RANGE
GASES
KHZ RANGE
LASERS
LEPTONS
METALS
METASTABLE STATES
MIXTURES
PULSES
PUMPING
RELAXATION
THALLIUM
VAPORS