Title :
Nanoparticles sorting and assembly based on double-axicon in an optofluidic chip
Author :
Shi, Y.Z. ; Xiong, Sisi ; Chin, L.K. ; Ren, Minzhen ; Liu, A.Q.
Author_Institution :
State Key Lab. for Manuf. Syst. Eng., Xi´an Jiao Tong Univ., Xian, China
Abstract :
This paper presents a novel optofluidic system for nanoparticle sorting by using interference patterns generated through a double-axicon. The tightly confined Bessel beam is used to sort the 200-nm and 500-nm polystyrene nanoparticles massively and simultaneously by adjusting the flow rate and the laser power. Additionally, 2-μm polystyrene particles are assembled into a 2D array by utilizing the discrete interference pattern. This system first utilizes the interference patterns based on the on-chip double-axicon, and integrates the sorting and assembly abilities into a single chip. It has a great potential in bacterial and DNA sorting and cell assembly.
Keywords :
fluidic devices; lenses; light interference; nanofabrication; nanoparticles; nanophotonics; polymers; 2D array; assembly; discrete interference pattern; double axicon; flow rate; laser power; optofluidic chip; polystyrene nanoparticles; size 2 mum; size 200 nm; size 500 nm; sorting; tightly confined Bessel beam; Biomedical optical imaging; Force; Interference; Laser beams; Nanoparticles; Optical scattering; Sorting;
Conference_Titel :
Micro Electro Mechanical Systems (MEMS), 2014 IEEE 27th International Conference on
Conference_Location :
San Francisco, CA
DOI :
10.1109/MEMSYS.2014.6765816
