N. S. Vorob'ev, V. M. Podgaetsky, A. V. Smirnov, S. A. Tereshchenko, L. G. Tomilova, “Improvement of the optical imaging of objects in a strongly scattering medium by means of contrast-enhancing dyes”, Kvantovaya Elektronika, 1999, Volume 29, Number 3,Pages <nobr>261

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Laser applications and other topics in quantum electronics

Improvement of the optical imaging of objects in a strongly scattering medium by means of contrast-enhancing dyes

N. S. Vorob'ev^a, V. M. Podgaetsky^b, A. V. Smirnov^a, S. A. Tereshchenko^b, L. G. Tomilova^c

^a Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
^b Moscow Institute of Electronic Engineering
^c Lomonosov Moscow State University, Faculty of Chemistry

Abstract: The problem of enhancing the contrast of optical images in a strongly scattering medium by means of luminescent and absorbing dyes, topical in laser tomography, is examined. Preparations based on diphthalocyanine compounds were selected on the grounds of their tropism and resistance to the action of heat and light. Images with enhanced contrast in model scattering media (an aqueous solution of milk and margarine) were obtained in the IR region of the spectrum using the radiation of a picosecond neodymium laser.

PACS: 42.30.Wb, 42.62.Eh, 87.57.Ce

Received: 12.07.1999