Papers Published

1. Yang, C; Wax, A; Georgakoudi, I; Hanlon, EB; Badizadegan, K; Dasari, RR; Feld, MS, Interferometric phase-dispersion microscopy, Optics Letters, vol. 25 no. 20 (October, 2000), pp. 1526-1528, The Optical Society [doi] .
   (last updated on 2023/06/01)

   Abstract:
   We describe a new scanning microscopy technique, phase-dispersion microscopy (PDM). The technique is based on measuring the phase difference between the fundamental and the second-harmonic light in a novel interferometer. PDM is highly sensitive to subtle refractive-index differences that are due to dispersion (differential optical path sensitivity, 5 nm). We apply PDM to measure minute amounts of DNA in solution and to study biological tissue sections. We demonstrate that PDM performs better than conventional phase-contrast microscopy in imaging dispersive and weakly scattering samples. © 2000 Optical Society of America.

   Keywords:
   biological techniques;biological tissues;DNA;Michelson interferometers;optical microscopy;