Title :
Electrically Controlled Transverse Superresolution Filter with Axial Focal Shift
Author :
Chen, Lingling ; Wang, Jiming ; He, Chongjun ; Liu, Youwen ; Yun, Maojin ; Xu, Jiawen
Author_Institution :
Coll. of Sci., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
An electrically controlled superresolution filter is proposed for the manipulation of transverse superresolution performance and axial focal shift. It consists of two parallel polarizers and a four-zone electro-optic crystal. The spatial manipulation of the polarization state and intensity can be realized by voltage applied on this four-zone electro-optic crystal. The redistribution of the filtered intensity near the focus is calculated. The axial focal shift and the transverse superresolution can be obtained and adjusted in particular parameters including radius, azimuth angle and proper applied voltage.
Keywords :
electro-optical devices; optical focusing; optical polarisers; spatial filters; axial focal shift; electrically controlled transverse superresolution filter; electro-optic crystal; parallel polarizer; polarization state spatial manipulation; Azimuth; Birefringence; Educational institutions; Manipulator dynamics; Optical filters; Optical modulation; Optical polarization; Spatial resolution; Tunable circuits and devices; Voltage control;
Conference_Titel :
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4963-7
Electronic_ISBN :
978-1-4244-4964-4
DOI :
10.1109/SOPO.2010.5504488
