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Seet KY, Vogel R, Nieminen TA, et al. Refractometry of organosilica microspheres. Appl Opt. 2007;46(9):1554-61doi: 10.1364/ao.46.001554.
Seet, K. Y., Vogel, R., Nieminen, T. A., Knöner, G., Rubinsztein-Dunlop, H., Trau, M., & Zvyagin, A. V. (2007). Refractometry of organosilica microspheres. Applied optics, 46(9), 1554-61. https://doi.org/10.1364/ao.46.001554
Seet, Katrina Y T, et al. "Refractometry of organosilica microspheres." Applied optics vol. 46,9 (2007): 1554-61. doi: https://doi.org/10.1364/ao.46.001554
Seet KY, Vogel R, Nieminen TA, Knöner G, Rubinsztein-Dunlop H, Trau M, Zvyagin AV. Refractometry of organosilica microspheres. Appl Opt. 2007 Mar 20;46(9):1554-61. doi: 10.1364/ao.46.001554. PMID: 17334448.
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Appl Opt. 2007 Mar 20;46(9):1554-61. doi: 10.1364/ao.46.001554.

Refractometry of organosilica microspheres.

Applied optics

Katrina Y T Seet, Robert Vogel, Timo A Nieminen, Gregor Knöner, Halina Rubinsztein-Dunlop, Matt Trau, Andrei V Zvyagin

Affiliations

  1. Center for Biophotonics and Laser Science, School of Physical Sciences, The University of Queensland, Brisbane, Australia. [email protected]

PMID: 17334448 DOI: 10.1364/ao.46.001554

Abstract

The refractive index of novel organosilica (nano/micro) material is determined using two methods. The first method is based on analysis of optical extinction efficiency of organosilica beads versus wavelength, which is obtained by a standard laboratory spectrometer. The second method relies on the measurable trapping potential of these beads in the focused light beam (laser tweezers). Polystyrene beads were used to test these methods, and the determined dispersion curves of refractive-index values have been found accurate. The refractive index of organosilica beads has been determined to range from 1.60 to 1.51 over the wavelength range of 300-1100 nm.

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