naa a22 4500 510817750 CHVBK 20180411083516.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11468-013-9509-y doi (NATIONALLICENCE)springer-10.1007/s11468-013-9509-y Enhanced Plasmonic Light Absorption for Silicon Schottky-Barrier Photodetectors [Elektronische Daten] [Mahdieh Hashemi, Mahmood Hosseini Farzad, N. Mortensen, Sanshui Xiao] Quantum efficiency of the silicon Schottky-barrier photodetector is limited by the weak interaction between the photons and electrons in the metal. By engineering the metal surfaces, metallic groove structures are proposed to achieve strong light absorption in the metal, where most of the energy is transferred into hot carriers near the Schottky barrier. The proposed broadband photodetector with a bi-grating metallic structure on the silicon substrate enables to absorb 76 % of the infrared light in the metal with a 200-nm bandwidth, while staying insensitive to the incident angle. These results pave a new promising way to attain high quantum efficiency silicon Schottky-barrier photodetectors. Springer Science+Business Media New York, 2013 Surface plasmons nationallicence Subwavelength structure nationallicence Schottky photodetectors nationallicence Enhanced absorption nationallicence Hashemi Mahdieh Department of Photonics Engineering, Technical University of Denmark, 2800, Kongens Lyngby, Denmark aut Hosseini Farzad Mahmood Department of Physics, College of Sciences, Shiraz University, 71454, Shiraz, Iran aut Mortensen N. Department of Photonics Engineering, Technical University of Denmark, 2800, Kongens Lyngby, Denmark aut Xiao Sanshui Department of Photonics Engineering, Technical University of Denmark, 2800, Kongens Lyngby, Denmark aut Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 1059-1064 1557-1955 8:2<1059 2013 8 11468 https://doi.org/10.1007/s11468-013-9509-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-013-9509-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hashemi Mahdieh Department of Photonics Engineering, Technical University of Denmark, 2800, Kongens Lyngby, Denmark aut NATIONALLICENCE 700 1- Hosseini Farzad Mahmood Department of Physics, College of Sciences, Shiraz University, 71454, Shiraz, Iran aut NATIONALLICENCE 700 1- Mortensen N. Department of Photonics Engineering, Technical University of Denmark, 2800, Kongens Lyngby, Denmark aut NATIONALLICENCE 700 1- Xiao Sanshui Department of Photonics Engineering, Technical University of Denmark, 2800, Kongens Lyngby, Denmark aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 1059-1064 1557-1955 8:2<1059 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer