Theoretical study of a 16-. mu. m CO/sub 2/ downstream-mixing gasdynamic laser: A two-dimensional approach

Journal Article · Sun Jan 26 23:00:00 EST 1986 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.96575· OSTI ID:6176292

Chakravarthy, P; Reddy, N M

A 16-..mu..m CO/sub 2/-N/sub 2/ downstream-mixing gasdynamic laser, where a cold CO/sub 2/ stream is mixed with a vibrationally excited N/sub 2/ stream at the exit of the nozzle, is studied theoretically. The flow field is analyzed using a two-dimensional, unsteady, laminar and viscous flow model including appropriate finite-rate vibrational kinetic equations. The analysis showed that local small-signal gain up to 21.75 m/sup -1/ can be obtained for a N/sub 2/ reservoir temperature of 2000 K and a velocity ratio of 1:1 between the CO/sub 2/ and N/sub 2/ mixing streams.

• Research Organization: Department of Aerospace Engineering, Indian Institute of Science, Bangalore 560012, India
• OSTI ID: 6176292
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 48:4; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFICATION
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
DATA
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY LEVELS
EQUATIONS
EXCITED STATES
FLUID FLOW
GAIN
GAS DYNAMIC LASERS
GAS FLOW
GAS LASERS
INFORMATION
INFRARED RADIATION
KINETIC EQUATIONS
LAMINAR FLOW
LASERS
MATHEMATICAL MODELS
MIXING
NITROGEN
NONMETALS
NOZZLES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
THEORETICAL DATA
TWO-DIMENSIONAL CALCULATIONS
VELOCITY
VIBRATIONAL STATES
VISCOUS FLOW