Accession Number:

ADA310728

Title:

Two-Photon Induced Fluorescence and Lasing of Microdroplets.

Descriptive Note:

Final rept.,

Corporate Author:

ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM

Report Date:

1995-08-01

Pagination or Media Count:

49.0

Abstract:

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.

Subject Categories:

  • Optical Detection and Detectors
  • Chemical, Biological and Radiological Warfare

Distribution Statement:

APPROVED FOR PUBLIC RELEASE