Formation of colloidal periodic structure by two-beam interference

Hyun-Ik Kim; Kang-Bin Im; Cha-Hwan Oh; Seok-Ho Song; Pill-Soo Kim

doi:10.1117/12.505414

29 December 2003 Formation of colloidal periodic structure by two beam interference

Hyun-Ik Kim, Kang-Bin Im, Cha-Hwan Oh, Seok-Ho Song, Pill-Soo Kim

Proceedings Volume 5184, Physics, Theory, and Applications of Periodic Structures in Optics II; (2003) https://doi.org/10.1117/12.505414
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

We trapped and manipulated the micro-particles by two beam interference. The micro-particles were pulled toward the bright fringe and were aligned along the periodic interference pattern. We observed the distribution of trapped particles at the various polarization configurations by adjusting the polarization states and measured the optical force acting on the particles. The particles were trapped in bright fringe by intensity gradient in the case of parallel polarization state. In the case of perpendicular polarization state, the particles aligned along periodic pattern even though there was no intensity modulation. Consequently, the results showed that the optical force can be generated from not only the intensity modulation but also no intensity modulation.

Citation Download Citation

Hyun-Ik Kim, Kang-Bin Im, Cha-Hwan Oh, Seok-Ho Song, and Pill-Soo Kim "Formation of colloidal periodic structure by two beam interference", Proc. SPIE 5184, Physics, Theory, and Applications of Periodic Structures in Optics II, (29 December 2003); https://doi.org/10.1117/12.505414

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