Title :
Research of transparent object by means of LED-based digital holography
Author :
Xianglian Liu ; Yi Qin
Author_Institution :
Energy Eng. Coll., Yulin Univ., Yulin, China
Abstract :
In this paper, a new interferometer is proposed and employed to investigate transparent object by means of LED(light emitting diode)-based digital holography. The interferometer combines the advantages of Mach-Zehder interferometer and Michelson interferometer, it enable us to adjust the optical path difference of the two beams interference on a Mach-Zehder interferometer. Thus the interference fringe patterns of LED could be observed quickly and conveniently. First the principle of the new interferometer is stated and then it is compared with other interferometers. Secondly, LED-based phase-shifting digital holography is carried out to investigate transparent object. Both theory and experiment results are presented.
Keywords :
Mach-Zehnder interferometers; Michelson interferometers; holographic interferometry; light emitting diodes; light interference; phase shifting interferometry; LED based digital holography; Mach-Zehder interferometer; Michelson interferometer; interference fringe patterns; interferometer; light emitting diode; optical path difference; phase shifting digital holography; transparent object; Holographic optical components; Holography; Interference; Light emitting diodes; Optical interferometry; Optimized production technology; Phase shifting interferometry; LED-based digital holography; digital holography; holography; transparent object;
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang, China
Print_ISBN :
978-1-61284-087-1
DOI :
10.1109/EMEIT.2011.6023750
