TY - GEN
T1 - Long distance beam propagation in colloidal suspensions
T2 - Optical Trapping and Optical Micromanipulation V
AU - Wright, E. M.
AU - Lee, W. M.
AU - Giscard, P. L.
AU - Dholakia, K.
PY - 2008
Y1 - 2008
N2 - It has been conjectured for some time that colloidal suspensions can act as artificial self-guiding media and support solitary beam-like solutions. The optical forces, along a diverging Gaussian beam, act to pull and retain the diffusing nanoparticles into its beam path. Consequently, the nanoparticle suspension acts to guide the diverging Gaussian beam and maintain the beam waist over a distance longer than its Rayleigh range. In this paper, we present a detailed analysis of beam propagation within nanoparticle suspensions. Using a recently developed theory by El-Ganainy et. al. (1), we seek to understand the beam dynamics by monitoring the scattered light from the particles along the propagation of the beam. An initial comparison of the theoretical and the experimental results shows interesting deviations due to the exponential nature of the optical nonlinearity.
AB - It has been conjectured for some time that colloidal suspensions can act as artificial self-guiding media and support solitary beam-like solutions. The optical forces, along a diverging Gaussian beam, act to pull and retain the diffusing nanoparticles into its beam path. Consequently, the nanoparticle suspension acts to guide the diverging Gaussian beam and maintain the beam waist over a distance longer than its Rayleigh range. In this paper, we present a detailed analysis of beam propagation within nanoparticle suspensions. Using a recently developed theory by El-Ganainy et. al. (1), we seek to understand the beam dynamics by monitoring the scattered light from the particles along the propagation of the beam. An initial comparison of the theoretical and the experimental results shows interesting deviations due to the exponential nature of the optical nonlinearity.
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U2 - 10.1117/12.796243
DO - 10.1117/12.796243
M3 - Conference contribution
AN - SCOPUS:56249130084
SN - 9780819472588
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Optical Trapping and Optical Micromanipulation V
Y2 - 10 August 2008 through 13 August 2008
ER -