[9a-N221-1~11] 3.1 Basic optics and frontier of optics

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9a-N221-5] Evaluation of thermophoretic-optical tweezers by using Brownian dynamics simulations

〇Koki Ide¹, Tetsuro Tsuji², Syoji Ito³, Takayuki Suzuki¹, Kenji Setoura⁴ (1.Kobe City Col. Tech., 2.Kyoto Univ., 3.Univ. Osaka, 4.Univ. Hyogo)

Keywords:

optical tweezers,thermophoresis,Brownian dynamics simulations

When a near-infrared (NIR) laser focused to the diffraction limit irradiates an aqueous colloidal solution, a localized non-equilibrium temperature field is generated, and thermophoretic forces are induced in addition to radiation pressure. In this study, we focus on thermophoretic-optical tweezers, which trap particles by combining the thermophoretic and optical forces. Here, we evaluated their trapping characteristics using Brownian dynamics simulations (BDS), which we developed to evaluate trapping behavior of nanoparticles. In this presentation, I will discuss the effectiveness of utilizing thermophoretic forces in optical tweezers based on the simulation results.