Design of an integrating cavity absorption meter.
The design of integrating cavity absorption meters of general geometry is analyzed for cases in which the incident illumination of the cavity is spatially uniform and isotropic, such as the meter of Fry et al. [Appl. Opt. 31, 2055 (1992)]. The analysis by Kirk [Appl. Opt. 34, 4397 (1995)] for the probability of photon survival in a spherical meter is extended to general geometries. An estimate of the effect of the shape of the cavity on the estimated absorption coefficient is given.
Hobbs
D M
DM
Department of Mechanical Engineering, University of Washington, Box 352600, Seattle, Washington 98195-2600, USA.
McCormick
N J
NJ