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Proceedings Paper

Nanosecond KTN varifocal lens without electric field induced phase transition
Author(s): Wenbin Zhu; Ju-Hung Chao; Chang-Jiang Chen; Adrian Campbell; Michael Henry; Stuart (Shizhuo) Yin; Robert C. Hoffman
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Paper Abstract

This paper presents a nanosecond speed KTN varifocal lens. The tuning principle of varifocal lens is based on the high-speed refractive index modulation from the nanosecond speed tunable electric field. A response time on the order of nanoseconds was experimentally demonstrated, which is the fastest varifocal lens reported so far. The results confirmed that the tuning speed of the KTN varifocal lens could be significantly increased by avoiding the electric field induced phase transition. Such a nanosecond speed varifocal lens can be greatly beneficial for a variety of applications that demand high speed axial scanning, such as high-resolution 3D imaging and high-speed 3D printing.

Paper Details

Date Published: 23 August 2017
PDF: 8 pages
Proc. SPIE 10382, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI, 103820R (23 August 2017); doi: 10.1117/12.2276511
Show Author Affiliations
Wenbin Zhu, The Pennsylvania State Univ. (United States)
Ju-Hung Chao, The Pennsylvania State Univ. (United States)
Chang-Jiang Chen, The Pennsylvania State Univ. (United States)
Adrian Campbell, The Pennsylvania State Univ. (United States)
Michael Henry, The Pennsylvania State Univ. (United States)
Stuart (Shizhuo) Yin, The Pennsylvania State Univ. (United States)
Robert C. Hoffman, U.S. Army Research Lab. (United States)


Published in SPIE Proceedings Vol. 10382:
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI
Shizhuo Yin; Ruyan Guo, Editor(s)

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