Near-resonant holography.
Experimental results of a new technique for measuring species concentration by using two-wavelength holography are described. The refractive-index difference between two pulsed dye-laser wavelengths tuned to the nearresonant region of atomic sodium is recorded on a hologram. For small wavelength differences, the nonresonance aberrations are subtracted out.
Rubin
L F
LF
Swain
D M
DM