Anomalous bi-directional scanning electro-optic KTN devices with UV-assisted electron and hole injections | Zendy

Chang-Jiang Chen | Zendy; Annan Shang | Zendy; Yun Goo Lee | Zendy; Ju-Hung Chao | Zendy; Ruijia Liu | Zendy; Shizhuo Yin | Zendy; Robert C. Hoffman | Zendy

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Anomalous bi-directional scanning electro-optic KTN devices with UV-assisted electron and hole injections

Author(s) -

Chang-Jiang Chen,

Annan Shang,

Yun Goo Lee,

Ju-Hung Chao,

Ruijia Liu,

Shizhuo Yin,

Robert C. Hoffman

Publication year - 2020

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.404307

Subject(s) - optics , materials science , tantalate , lithium tantalate , optoelectronics , scanning electron microscope , electron , ultraviolet , electro optic effect , lithium niobate , photorefractive effect , potassium niobate , ferroelectricity , electric field , physics , quantum mechanics , dielectric

In this Letter, we reported anomalous electro-optic potassium tantalate niobate (KTN) devices, in which both electrons and holes were injected into the KTN crystal via ultraviolet (UV) illumination-assisted charge injection. This could not only significantly enhance the performance of electro-optic devices (e.g., a 270% increase in the deflection angle in terms of the KTN deflector) but also enable the new bi-directional scanning capability. The results in this work would be very useful for a variety of devices and applications, such as electro-optic based vari-focal lenses.

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