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Optical Beam Scanning Using Potassium Tantalate Niobate

Chen, Hongwei
http://orcid.org/0000-0001-8193-5382
http://rave.ohiolink.edu/etdc/view?acc_num=dayton1444868170

Abstract Details

2015, Master of Science (M.S.), University of Dayton, Electro-Optics.
This thesis aims to study the characteristics of the one-dimensional optical scanner made of Potassium Tantalate Niobate [KTa1-xNbxO3] (KTN) based on electro-optic (EO) effect and space-charge-controlled electrical condition. A large deflection angle of 11.28° full range is achieved by applying a relatively low voltage ±250V to a 1.0-mm-thick KTN crystal with a short interaction length of 3.2mm. In theory, the electrical conduction is carried by the electrons injected from the Ohmic contact of the electrodes. The injected electrons induce the space-charge effect and the electrical field becomes non-uniform while the electrical field has a square root dependence on the distance from the cathode. Consequently, a linearly graded refractive index is induced and the optical beam is cumulatively deflected as it propagates through the crystal. Deflection angle, deflection efficiency, resolution and frequency response are characterized. A thermistor is also utilized because that the temperature of KTN crystal has to be controlled around 44.2°C.
Qiwen Zhan (Committee Chair)
Joseph Haus (Committee Member)
Partha Banerjee (Committee Member)
57 p.
Electrical Engineering; Optics

Recommended Citations

Citations

  • Chen, H. (2015). Optical Beam Scanning Using Potassium Tantalate Niobate [Master's thesis, University of Dayton]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1444868170

    APA Style (7th edition)

  • Chen, Hongwei. Optical Beam Scanning Using Potassium Tantalate Niobate. 2015. University of Dayton, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=dayton1444868170.

    MLA Style (8th edition)

  • Chen, Hongwei. "Optical Beam Scanning Using Potassium Tantalate Niobate." Master's thesis, University of Dayton, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1444868170

    Chicago Manual of Style (17th edition)

dayton1444868170
1,538
© 2015, some rights reserved.Creative Commons License Optical Beam Scanning Using Potassium Tantalate Niobate by Hongwei Chen is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Dayton and OhioLINK.