Universal Journal of Physics and Application Vol. 8(3), pp. 182 - 188
DOI: 10.13189/ujpa.2014.020306
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Manipulation and Trapping of Particles in the Ray Optics Regime Using DPS-DNG Layered Structures: Toward Calibration and Precision of Optical Tweezers


J. H. Shahbazian *
Department of ECE, Tufts University, Medford, MA.02155, USA

ABSTRACT

Optical traps or tweezers use the forces exerted by structured beams of light to confine and manipulate non-intrusively and non-destructively microscopic objects including living cells and bacteria, with high accuracy. This technique provides unique means to control the dynamics of small particles and played a revolutionary role in areas of the physical and biological sciences. This manuscript aims at absolute force calibration of optical beams, using new technique and structure of DPS (Double Positive index of refraction)-DNG (Double Negative index of refraction)layered structure to manipulate targets in the far filed with high resolution trapping scheme. Using this layered structure which acts as a tunable optical band-pass filter would help to calibrate and control the forces on the target(s). The band-pass effect varies with the periodic parameters of the DPS-DNG structure, applied electric and magnetic field, incidence angle and frequency.

KEYWORDS
Optical Tweezer, DNG-DPS, NIM, Optical forces, Gradient Force, Optical Trapping

Cite this paper
J. H. Shahbazian . "Manipulation and Trapping of Particles in the Ray Optics Regime Using DPS-DNG Layered Structures: Toward Calibration and Precision of Optical Tweezers." Universal Journal of Physics and Application 8.3 (2014) 182 - 188. doi: 10.13189/ujpa.2014.020306.