Tunable anti-Stokes Raman laser

Patent · Tue Dec 04 04:00:00 EST 1984

OSTI ID:5995503

White, J C

An anti-Stokes Raman laser is disclosed which is tunable over a range of 10-70 cm-/sup 1/. An alkali halide is used as the lasing medium and a metastable halide population inversion is created with respect to the ground state of the halide by selective photodissociation of the alkali halide. A pump laser is then employed to move the population from the metastable state to a region near an intermediate state of the halide. The population subsequently falls back to the initial ground state, thereby creating the anti-Stokes Raman emission. Since the intensity of the photodissociation is directly proportional to the amount of population inversion achieved, and hence, to the region the population may be pumped to, the tuning of the output anti-Stokes Raman lasing is a function of the intensity of the initial photodissoiation.

• Assignee: NOR-85-07058; EDB-85-061347
• Patent Number(s): US 4486884
• OSTI ID: 5995503
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALKALI METAL COMPOUNDS
ALKALI METALS
DYE LASERS
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION
FLUORIDES
FLUORINE COMPOUNDS
FUNCTIONS
HALIDES
HALOGEN COMPOUNDS
INORGANIC PHOSPHORS
IODIDES
IODINE COMPOUNDS
KRYPTON COMPOUNDS
KRYPTON FLUORIDES
LASER MATERIALS
LASER RADIATION
LASERS
LIQUID LASERS
MATERIALS
METALS
OPTICAL PUMPING
PHOSPHORS
PHOTOEMISSION
PUMPING
RADIATIONS
RAMAN EFFECT
RARE GAS COMPOUNDS
RESPONSE FUNCTIONS
SECONDARY EMISSION
SODIUM COMPOUNDS
SODIUM IODIDES
TUNING
ULTRAVIOLET RADIATION
VACUUM STATES
WAVELENGTHS