Enhancement of biased diffusion of dye-doped nanopartieles by simultaneous irradiation with resonance and nonresonance laser beams Export

@article{citeulike:1150105, abstract = {We propose and demonstrate the enhancement of the biased diffusion of dye-doped nanoparticles using resonance and nonresonance laser beams. The Brownian motion of nanoparticles in a laser focus is investigated by fluorescence correlation spectroscopy (PCS) and the time variation in fluorescence intensity. From the analysis of autocorrelation functions, it is demonstrated that the difference between the transit times of nanoparticles in the focal spot with and without resonance laser irradiation increases ?7-fold by the simultaneous irradiation of a near-infrared laser. This method is applicable to the selective optical manipulation of dye-stained nanomaterials and biomolecules in solution. {\copyright} 2006 The Japan Society of Applied Physics.}, address = {Department of Applied Physics, Handai Frontier Research Center, Osaka University, 2-1 Yamaduoka, Suita, Osaka 565-0871, Japan}, author = {Hosokawa, C. and Yoshikawa, H. and Masuhara, H.}, citeulike-article-id = {1150105}, citeulike-linkout-0 = {http://dx.doi.org/10.1143/JJAP.45.L453}, citeulike-linkout-1 = {http://www.scopus.com/record/display.url?view=extended&origin=resultslist&eid=2-s2.0-33646489061}, doi = {10.1143/JJAP.45.L453}, journal = {Jpn J Appl Phys Part 2 Letter}, keywords = {diffusion, rotational}, number = {12-16}, posted-at = {2009-01-12 06:24:25}, priority = {2}, title = {Enhancement of biased diffusion of dye-doped nanopartieles by simultaneous irradiation with resonance and nonresonance laser beams}, url = {http://dx.doi.org/10.1143/JJAP.45.L453}, volume = {45}, year = {2006} }

TY - JOUR ID - citeulike:1150105 L3 - citeulike-article-id:1150105 N2 - We propose and demonstrate the enhancement of the biased diffusion of dye-doped nanoparticles using resonance and nonresonance laser beams. The Brownian motion of nanoparticles in a laser focus is investigated by fluorescence correlation spectroscopy (PCS) and the time variation in fluorescence intensity. From the analysis of autocorrelation functions, it is demonstrated that the difference between the transit times of nanoparticles in the focal spot with and without resonance laser irradiation increases ?7-fold by the simultaneous irradiation of a near-infrared laser. This method is applicable to the selective optical manipulation of dye-stained nanomaterials and biomolecules in solution. © 2006 The Japan Society of Applied Physics. IS - 12-16 JF - Jpn J Appl Phys Part 2 Letter AD - Department of Applied Physics, Handai Frontier Research Center, Osaka University, 2-1 Yamaduoka, Suita, Osaka 565-0871, Japan TI - Enhancement of biased diffusion of dye-doped nanopartieles by simultaneous irradiation with resonance and nonresonance laser beams VL - 45 KW - diffusion KW - rotational AU - Hosokawa, C AU - Yoshikawa, H AU - Masuhara, H PY - 2006/// UR - http://dx.doi.org/10.1143/JJAP.45.L453 ER -