Accession Number:

ADA295482

Title:

High Power Broadly Tunable Piscosecond IR Laser System for Use in Nonlinear Spectroscopic Applications.

Descriptive Note:

Technical rept. Jun 94-May 95,

Corporate Author:

OREGON UNIV EUGENE DEPT OF CHEMISTRY

Personal Author(s):

• Gragson, D. E.
• Alavi, D. S.
• Richmond, G. L.

Report Date:

1995-06-12

Pagination or Media Count:

14.0

Abstract:

A picosecond laser system which will generate high power tunable IR pulses with bandwidths suitable for spectroscopic applications is discussed. The system is based on white light continuum generation in ethylene glycol and optical parametric amplification in potassium titanyl phosphate. The non-linear optical processes are driven by a regeneratively amplified Tisapphire laser which produces 1.7 ps pulses at a repetition rate of 1 kHz. Energies as high as 40 microJ and 12 microJ have been achieved over the signal, 1.02-1.16 micrometers, and idler, 2.6-3.7 micrometers, tuning ranges, respectively. The IR beam temporal and spatial characteristics are also presented. jg

Descriptors:

• *HIGH POWER
• *TUNABLE LASERS
• *SPECTROSCOPY
• *INFRARED LASERS
• *NONLINEAR SYSTEMS
• *POTASSIUM COMPOUNDS
• SPATIAL DISTRIBUTION
• OPTICAL EQUIPMENT
• REPETITION RATE
• LASERS
• SAPPHIRE
• SIGNALS
• BANDWIDTH
• OPTICAL PROCESSING
• WHITE LIGHT
• PHOSPHATES
• TITANIUM COMPOUNDS
• ETHYLENE GLYCOL
• PARAMETRIC AMPLIFIERS

Subject Categories:

• Lasers and Masers
• Inorganic Chemistry
• Organic Chemistry
• Electrical and Electronic Equipment
• Atomic and Molecular Physics and Spectroscopy
• Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE