Measurement of the refractive index of highly turbid media

Measurement of the refractive index of highly turbid media

We demonstrate a first simultaneous measurement of the real and imaginary parts of the refractive index of a highly turbid medium by observing the real-time reflectance profile of a divergent laser beam made incident on the surface of the turbid medium. We find that the reflectance data are well des...

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Veröffentlicht in:Optics letters 2010-04, Vol.35 (8), p.1224-1226
Hauptverfasser: CALHOUN, W. R, MAETA, H, COMBS, A, BALI, L. M, BALI, S
Format: Artikel
Sprache:eng
Schlagworte:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optics
Physics
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Zusammenfassung:We demonstrate a first simultaneous measurement of the real and imaginary parts of the refractive index of a highly turbid medium by observing the real-time reflectance profile of a divergent laser beam made incident on the surface of the turbid medium. We find that the reflectance data are well described by Fresnel theory that correctly includes the effect on total internal reflection of angle-dependent penetration into the turbid medium.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.35.001224