Presentation 2015-05-22
Development of high-sensitive SOI photodiode by local surface plasmon scattering
Atsushi Ono, Yasushi Enomoto, Yasufumi Matsumura, Hiroaki Satoh, Hiroshi Inokawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We demonstrated the quantum efficiency (QE) of silicon-oninsulator (SOI) photodiode was enhanced in visible wavelength region by using gold (Au) nanoparticles. The photons plasmonically scattered by Au nanoparticles couples with the waveguide mode in SOI, and are absorbed efficiently. Optimum size and density of Au nanoparticles have been investigated by 3-D FDTD simulations for sensitivity improvement. The highest enhancement factor of the absorption efficiency in 100-nm-thick SOI is obtained by periodically attaching Au nanoparticles of about 140 nm in diameter and 1.7 × 109 particles/cm2 in density. Two-fold enhancement in QE was experimentally achieved in visible by the SOI photodiode with randomly arranged Au nanoparticles of the size and density close to the optimized values.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Photodiode / Surface plasmon / Silicon / Waveguide / Gold Nanoparticle
Paper # LQE2015-12
Date of Issue 2015-05-14 (LQE)

Conference Information
Committee LQE / LSJ
Conference Date 2015/5/21(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Hajime Shoji(Sumitomo Electric Industries)
Vice Chair Susumu Noda(Kyoto Univ.)
Secretary Susumu Noda(NICT) / (NTT)
Assistant

Paper Information
Registration To Technical Committee on Lasers and Quantum Electronics / *
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Development of high-sensitive SOI photodiode by local surface plasmon scattering
Sub Title (in English)
Keyword(1) Photodiode
Keyword(2) Surface plasmon
Keyword(3) Silicon
Keyword(4) Waveguide
Keyword(5) Gold Nanoparticle
1st Author's Name Atsushi Ono
1st Author's Affiliation Shizuoka University(Shizuoka Univ.)
2nd Author's Name Yasushi Enomoto
2nd Author's Affiliation Nippon Steel & Sumikin Chemical Co. Ltd.(NSCC)
3rd Author's Name Yasufumi Matsumura
3rd Author's Affiliation Nippon Steel & Sumikin Chemical Co. Ltd.(NSCC)
4th Author's Name Hiroaki Satoh
4th Author's Affiliation Shizuoka University(Shizuoka Univ.)
5th Author's Name Hiroshi Inokawa
5th Author's Affiliation Shizuoka University(Shizuoka Univ.)
Date 2015-05-22
Paper # LQE2015-12
Volume (vol) vol.115
Number (no) LQE-46
Page pp.pp.59-62(LQE),
#Pages 4
Date of Issue 2015-05-14 (LQE)