Length reduction of tunable continuous wave CO/sub 2/ lasers using fabry-perot resonators

Journal Article · Thu May 01 00:00:00 EDT 1986 · J. Appl. Spectrosc. (Engl. Transl.); (United States)

OSTI ID:5184829

Abdullin, R M; Lebedev, A V; Popov, A I

This study determines systematic corrections of values for temperatures obtained through spectral relative spectroreflectometry which are necessary for substituting measurements of directional-hemispherical albedos with measurements of bidirectional albedos. It is evident that the values for the correlations are a function of the degree of diffusivity for the pyrometric objects. It was concluded that relative spectroreflectometry allows one to correctly determine the true temperature of objects with unknown reflective properties through measurements of the relative bidirectional albedo, taking into account spectral differences in the intensity functions which can be characterized by ratios of equivalent solid angles omega/sub 2//omega/sub 1/. The quantity of the systematic correction in determining the temperature is given by the approximation equation.

• OSTI ID: 5184829
• Journal Information: J. Appl. Spectrosc. (Engl. Transl.); (United States), Vol. 43:5
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CARBON DIOXIDE LASERS
CAVITY RESONATORS
ENERGY EFFICIENCY
LENGTH
TUNING
ALBEDO
CARBON DIOXIDE
EXCITATION
GAIN
LASER RADIATION
LASER SPECTROSCOPY
OPTICAL PUMPING
ROTATIONAL STATES
SIZING
VIBRATIONAL STATES
AMPLIFICATION
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
DIMENSIONS
EFFICIENCY
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EQUIPMENT
EXCITED STATES
GAS LASERS
LASERS
OXIDES
OXYGEN COMPOUNDS
PUMPING
RADIATIONS
RESONATORS
SPECTROSCOPY
420500* - Engineering- Materials Testing