Photon excitation enabled large aperture space-charge-controlled potassium tantalate niobate (KTN) beam deflector

Wenbin Zhu, Ju Hung Chao, Chang Jiang Chen, Annan Shang, Yun Goo Lee, Shizhuo Yin, Mark Dubinskii, Robert C. Hoffman

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

To overcome the depth limitation of the space-charge-controlled (SCC) potassium tantalate niobate (KTN) deflectors, we report in this paper a method of increasing the aperture of SCC-KTN deflectors by harnessing the physical mechanism of blue light photon excitation. The experimental results show that the deflection angle can be increased from 0.7 mrad without the blue light excitation to 2.5 mrad with the blue light excitation at a penetration depth of 5 mm under the same external applied voltage, which is consistent with the theoretical analysis. This represents a substantial increase in the deflection angle at a much deeper penetration depth, which can be very useful for applications such as high speed 3D printings and displays.

Original languageEnglish (US)
Article number132901
JournalApplied Physics Letters
Volume112
Issue number13
DOIs
StatePublished - Mar 26 2018

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deflectors
niobates
space charge
potassium
apertures
deflection
photons
penetration
excitation
printing
high speed
electric potential

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Zhu, Wenbin ; Chao, Ju Hung ; Chen, Chang Jiang ; Shang, Annan ; Lee, Yun Goo ; Yin, Shizhuo ; Dubinskii, Mark ; Hoffman, Robert C. / Photon excitation enabled large aperture space-charge-controlled potassium tantalate niobate (KTN) beam deflector. In: Applied Physics Letters. 2018 ; Vol. 112, No. 13.
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Photon excitation enabled large aperture space-charge-controlled potassium tantalate niobate (KTN) beam deflector. / Zhu, Wenbin; Chao, Ju Hung; Chen, Chang Jiang; Shang, Annan; Lee, Yun Goo; Yin, Shizhuo; Dubinskii, Mark; Hoffman, Robert C.

In: Applied Physics Letters, Vol. 112, No. 13, 132901, 26.03.2018.

Research output: Contribution to journalArticle

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AU - Zhu, Wenbin

AU - Chao, Ju Hung

AU - Chen, Chang Jiang

AU - Shang, Annan

AU - Lee, Yun Goo

AU - Yin, Shizhuo

AU - Dubinskii, Mark

AU - Hoffman, Robert C.

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