Tunable size selectivity and nanoparticle immobilization on a photonic crystal optical trap

被引：4

作者：

Krishnan, Aravind ^{[1
]}

Wu, Shao-Hua ^{[1
]}

Povinelli, Michelle ^{[1
]}

机构：

[1] Univ Southern Calif, Ming Hsieh Dept Elect Engn, Los Angeles, CA 90089 USA

来源：

OPTICS LETTERS | 2018年 / 43卷 / 21期

关键词：

GUIDED-RESONANCE MODES; MANIPULATION; LIGHT; TWEEZERS; THERMOPHORESIS; TEMPERATURE; RESONATORS; GRADIENT; LATTICE; ARRAYS;

D O I：

10.1364/OL.43.005399

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We harness residual thermal effects in a low-absorptivity system to manipulate parallel optical trapping of particles on the nanoscale. A photonic crystal is used to generate a 2D array of optical traps. We show that the size selectivity of the trap can be tuned by adding a non-ionic surfactant to the solution, altering the thermophoretic effect that delivers nanoparticles to trapping sites. We further show that particles can be permanently immobilized on the photonic crystal via photopolymerization of the trapping medium. (C) 2018 Optical Society of America

引用

页码：5399 / 5402

页数：4

共 42 条

[1] Guiding and confining light in void nanostructure [J].