Abstract
Solar-blind deep-ultraviolet (DUV) photoconductive detectors based on an (LAO) single crystal with interdigitated electrodes are reported. The LAO detectors show a high sensitivity to DUV light with wavelengths less than , and the DUV/UV (200 versus ) contrast ratio is more than 2 orders of magnitude. The photocurrent responsivity of LAO detector reaches at at bias, and the corresponding quantum efficiency η is 44.6%. The noise current under sunlight at midday outdoors is only . The experimental results indicate that the LAO detectors have attractive potential applications in DUV detection.
© 2009 Optical Society of America
Full Article | PDF ArticleMore Like This
Er-Jia Guo, Hui-Bin Lu, Meng He, Kui-Juan Jin, and Guo-Zhen Yang
Appl. Opt. 49(29) 5678-5681 (2010)
J. Xing, K. Zhao, H. B. Lu, X. Wang, G. Z. Liu, K. J. Jin, M. He, C. C. Wang, and G. Z. Yang
Opt. Lett. 32(17) 2526-2528 (2007)
Jing-ting Yang, Chen Ge, Kui-juan Jin, Hui-bin Lu, and Guo-zhen Yang
Appl. Opt. 55(9) 2259-2262 (2016)