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25 August 2015 Optical spatial solitons in bidisperse fluorescent nanocolloids
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Abstract
We report on the nonlinear effects of light propagation through a fluorescent nanocolloid, where self-collimated beams are formed. The medium is constituted by a bidisperse suspension of fluorescent and nonfluorescent nanospheres of similar diameters (60nm and 62nm, respectively) in distilled water. A CW laser beam (532 nm wavelength) was focused into the nano-suspension. The threshold power and focusing conditions to create a self-collimated beam are analyzed as a function of the incident power, and a hysteresis effect is observed for the size of the output beam when the power is increasing and decreasing. We also discuss other effects associated to the presence of the fluorescent nanospheres.
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© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Yadira Salazar-Romero, Yareni Aguilar-Ayala, Alejandro V. Arzola, Juan Hernández-Cordero, and K. Volke-Sepúlveda "Optical spatial solitons in bidisperse fluorescent nanocolloids", Proc. SPIE 9548, Optical Trapping and Optical Micromanipulation XII, 95481F (25 August 2015); https://doi.org/10.1117/12.2188758
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