Title :
PL mapping and optimized optical trapping of nanowires SLM beam shaping
Author :
Wang, F. ; Lee, W.M. ; Toe, Wen Jun ; Gao, Q. ; Tan, H.H. ; Jagadish, C. ; Reece, Peter J.
Author_Institution :
Sch. of Phys., Univ. of New South Wales, Sydney, NSW, Australia
Abstract :
We report a novel method for using a spatial light modulator (SLM) to spatially map the luminescent properties of single trapped semiconductor nanowires by dynamic optical tweezers. Being able to control the axial position of the trapping focus with respect to the excitation source, the composition along the long axis of the nanowire can be probed. We also explore the feasibility of tailoring trapping beam shape to enhance the axial trap stiffness for long nanowires (> 5 μm).
Keywords :
nanowires; spatial light modulators; PL mapping; axial position; axial trap stiffness; beam shape trapping; dynamic optical tweezer; excitation source; luminescent property; nanowires SLM beam shaping; optical trapping; single trapped semiconductor nanowire; spatial light modulator; Electromagnetics; Liquids; Nanowires;
Conference_Titel :
Optoelectronic and Microelectronic Materials & Devices (COMMAD), 2012 Conference on
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4673-3047-3
DOI :
10.1109/COMMAD.2012.6472344
