Photon excitation enabled large aperture space-charge-controlled potassium tantalate niobate (KTN) beam deflector
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 26, 2018
- Source ID
- 10.1063/1.5021958
Entities
People
- Annan Shang
- Chang-jiang Chen
- Ju-hung Chao
- Mark Dubinskii
- Robert C. Hoffman
- Shizhuo Yin
- Wenbin Zhu
- Yun Goo Lee
Organizations
- Office of Naval Research
- Pennsylvania State University
- United States Army Research Laboratory