Characterization of an interferometric optical sieve for particle sorting

K. Volke-Sepulveda; R. Ramos-García; I. Ricardez-Vargas

doi:10.1117/12.679857

11 September 2006 Characterization of an interferometric optical sieve for particle sorting

K. Volke-Sepulveda, R. Ramos-García, I. Ricardez-Vargas

Proceedings Volume 6326, Optical Trapping and Optical Micromanipulation III; 632616 (2006) https://doi.org/10.1117/12.679857
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

We present a detailed theoretical discussion and experimental analysis of an interferometric optical trapping device that allows efficient sorting of particles, including biological samples, either by size or refractive index. This technique involves no microfluidic flow, but it is based on the specific response of different microparticles to an interference pattern of fringes vibrating with a periodic but non-symmetric time modulation function. The performance of the system is analyzed in terms of the different control parameters, such as the period of the fringes, the vibration amplitude and frequency, and the power level in the sample. We discuss the possibility of using this system to characterize unknown samples.

Citation Download Citation

K. Volke-Sepulveda, R. Ramos-García, and I. Ricardez-Vargas "Characterization of an interferometric optical sieve for particle sorting", Proc. SPIE 6326, Optical Trapping and Optical Micromanipulation III, 632616 (11 September 2006); https://doi.org/10.1117/12.679857

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