Relaxation of the 6p {sup 2}P{sup 0}{sub 3/2} metastable state in a self-terminating thallium laser
- 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.), Vol. 38, Issue 12; Other Information: DOI: 10.1070/QE2008v038n12ABEH013795; ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
Similar Records
Laser induced fluorescence study of Xe(5p/sup 5/6p, 5p/sup 5/6p', 5p/sup 5/7p, and 5p/sup 5/6d) states in Ne and Ar: Radiative lifetimes and collisional deactivation rate constants
Gas-discharge laser on a self-terminating thallium transition
Related Subjects
DE-EXCITATION
ELECTRON BEAM PUMPING
ELECTRONS
EXCITATION
KHZ RANGE
LASERS
METASTABLE STATES
MIXTURES
PULSES
RELAXATION
THALLIUM
VAPORS
DISPERSIONS
ELECTRICAL PUMPING
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
FERMIONS
FLUIDS
FREQUENCY RANGE
GASES
LEPTONS
METALS
PUMPING