Two-Photon Induced Fluorescence and Lasing of Microdroplets.
ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM
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The feasibility of using two photon induced fluorescence of amino acids is examined for its potential as a detection technique for biological aerosols. The research was motivated by the problem of spectral discrimination encountered in fluorescence applications. Two separate experiments were performed 1 two-photon induced fluorescence of the three aromatic amino acids and 2 two-photon pumped lasing in spherical droplets doped with rhodomine 6g dye. It was found in the first experiment that there is greater specificity for two-photon fluorescence than for one-photon induced fluorescence however, the effect is very weak. The lasing experiment indicated that lasing is intense, but there can only be a short distance from the source to the droplet.
- Optical Detection and Detectors
- Chemical, Biological and Radiological Warfare