Tunable anti-Stokes Raman laser

Patent · Tue Dec 04 00:00:00 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
• Resource Relation: Patent File Date: Filed date 10 May 1982; Other Information: PAT-APPL-376416
• Country of Publication: United States
• Language: English

Related Subjects

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