TY - GEN
T1 - Effect of grating profile in a surface plasmon-polariton enhanced-efficiency schottky photodetector
AU - Sellai, A.
PY - 2008
Y1 - 2008
N2 - We use in this work a numerical method based on rigorous coupled wave analysis to calculate the diffraction efficiency in the case of a grating structure which can be a part of a Schottky based photodetector. The effects of the grating thickness, depth, period and filling factor on the diffraction efficiency are investigated. The thickness in particular is found to play a crucial role in determining the overall (sum of diffraction orders) diffraction efficiency since it is the parameter of importance when it comes to consider the degree of coupling between the surface plasmon-polaritons excited at both the air/metal and metal/semiconductor interfaces. Also the optimization of the grating parameters for a minimum reflectance is done at the particular wavelength λ = 1.5μm) considering three orders of diffraction. The effect of the grating profile on the diffraction efficiency is interpreted in terms of additional higher order Fourier harmonics added to a fundamental sinusoidal profile.
AB - We use in this work a numerical method based on rigorous coupled wave analysis to calculate the diffraction efficiency in the case of a grating structure which can be a part of a Schottky based photodetector. The effects of the grating thickness, depth, period and filling factor on the diffraction efficiency are investigated. The thickness in particular is found to play a crucial role in determining the overall (sum of diffraction orders) diffraction efficiency since it is the parameter of importance when it comes to consider the degree of coupling between the surface plasmon-polaritons excited at both the air/metal and metal/semiconductor interfaces. Also the optimization of the grating parameters for a minimum reflectance is done at the particular wavelength λ = 1.5μm) considering three orders of diffraction. The effect of the grating profile on the diffraction efficiency is interpreted in terms of additional higher order Fourier harmonics added to a fundamental sinusoidal profile.
KW - Grating structure
KW - Schottky photodetectors
KW - Surface plasmon-polariton
UR - http://www.scopus.com/inward/record.url?scp=49149090938&partnerID=8YFLogxK
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U2 - 10.1109/ICTTA.2008.4530149
DO - 10.1109/ICTTA.2008.4530149
M3 - Conference contribution
AN - SCOPUS:49149090938
SN - 1424417511
SN - 9781424417513
T3 - 2008 3rd International Conference on Information and Communication Technologies: From Theory to Applications, ICTTA
BT - 2008 3rd International Conference on Information and Communication Technologis
T2 - 2008 3rd International Conference on Information and Communication Technologies: From Theory to Applications, ICTTA
Y2 - 7 April 2008 through 11 April 2008
ER -