Dynamic Characterization and Impulse Response Modeling of Amplitude and Phase Response of Silicon Nanowires

Ciaran S. Cleary; Hua Ji; James M. Dailey; Roderick P. Webb; Robert J. Manning; Michael Galili; Palle Jeppesen; Minhao Pu; Kresten Yvind; Leif Katsuo Oxenløwe

doi:10.1109/JPHOT.2013.2246560

Dynamic Characterization and Impulse Response Modeling of Amplitude and Phase Response of Silicon Nanowires

Ciaran S. Cleary
, Hua Ji
, James M. Dailey
, Roderick P. Webb
, Robert J. Manning
, Michael Galili
, Palle Jeppesen
, Minhao Pu
, Kresten Yvind
, Leif Katsuo Oxenløwe

University College Cork

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Amplitude and phase dynamics of silicon nanowires were measured using time-resolved spectroscopy. Time shifts of the maximum phase change and minimum amplitude as a function of pump power due to saturation of the free-carrier density were observed. A phenomenological impulse response model used to fit the experimental data indicated that the free-carrier lifetime was between $7.5 \leq \tau_{\rm fc} \leq 16.2\ \hbox{ns}$, and the two-photon absorption coefficient and the Kerr coefficient were $3 \times 10^{-12}\ \hbox{m.W}^{-1}$ and $4 \times 10^{-18}\ \hbox{m}^{2}.\hbox{W}^{-1}$, respectively, for silicon nanowires with lengths varying from 3.6 to 14.9 mm.

Original language	English
Journal	I E E E Photonics Journal
Volume	5
Issue number	2
Pages (from-to)	4500111
Number of pages	11
ISSN	1943-0655
DOIs	https://doi.org/10.1109/JPHOT.2013.2246560
Publication status	Published - 2013

Keywords

Silicon nanowire
Pump–probe spectroscopy
Two-photon absorption (TPA)
Free-carrier absorption (FCA)

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10.1109/JPHOT.2013.2246560

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SiMOF: CMOS-Compatible Silicon-Based Micro-Ring Resonator for On-Chip Optical Frequency Comb Generation (SiMOF)
Pu, M. (Project Manager), Yvind, K. (Project Participant) & Peucheret, C. (Project Participant)
01/01/2012 → 30/09/2015
Project: Research

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title = "Dynamic Characterization and Impulse Response Modeling of Amplitude and Phase Response of Silicon Nanowires",

abstract = "Amplitude and phase dynamics of silicon nanowires were measured using time-resolved spectroscopy. Time shifts of the maximum phase change and minimum amplitude as a function of pump power due to saturation of the free-carrier density were observed. A phenomenological impulse response model used to fit the experimental data indicated that the free-carrier lifetime was between \$7.5 \textbackslash{}leq \textbackslash{}tau\_\{\textbackslash{}rm fc\} \textbackslash{}leq 16.2\textbackslash{} \textbackslash{}hbox\{ns\}\$, and the two-photon absorption coefficient and the Kerr coefficient were \$3 \textbackslash{}times 10\textasciicircum{}\{-12\}\textbackslash{} \textbackslash{}hbox\{m.W\}\textasciicircum{}\{-1\}\$ and \$4 \textbackslash{}times 10\textasciicircum{}\{-18\}\textbackslash{} \textbackslash{}hbox\{m\}\textasciicircum{}\{2\}.\textbackslash{}hbox\{W\}\textasciicircum{}\{-1\}\$, respectively, for silicon nanowires with lengths varying from 3.6 to 14.9 mm.",

keywords = "Silicon nanowire, Pump–probe spectroscopy, Two-photon absorption (TPA), Free-carrier absorption (FCA)",

author = "Cleary, \{Ciaran S.\} and Hua Ji and Dailey, \{James M.\} and Webb, \{Roderick P.\} and Manning, \{Robert J.\} and Michael Galili and Palle Jeppesen and Minhao Pu and Kresten Yvind and Oxenl{\o}we, \{Leif Katsuo\}",

year = "2013",

doi = "10.1109/JPHOT.2013.2246560",

language = "English",

volume = "5",

pages = "4500111",

journal = "I E E E Photonics Journal",

issn = "1943-0655",

publisher = "IEEE",

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TY - JOUR

T1 - Dynamic Characterization and Impulse Response Modeling of Amplitude and Phase Response of Silicon Nanowires

AU - Cleary, Ciaran S.

AU - Ji, Hua

AU - Dailey, James M.

AU - Webb, Roderick P.

AU - Manning, Robert J.

AU - Galili, Michael

AU - Jeppesen, Palle

AU - Pu, Minhao

AU - Yvind, Kresten

AU - Oxenløwe, Leif Katsuo

PY - 2013

Y1 - 2013

N2 - Amplitude and phase dynamics of silicon nanowires were measured using time-resolved spectroscopy. Time shifts of the maximum phase change and minimum amplitude as a function of pump power due to saturation of the free-carrier density were observed. A phenomenological impulse response model used to fit the experimental data indicated that the free-carrier lifetime was between $7.5 \leq \tau_{\rm fc} \leq 16.2\ \hbox{ns}$, and the two-photon absorption coefficient and the Kerr coefficient were $3 \times 10^{-12}\ \hbox{m.W}^{-1}$ and $4 \times 10^{-18}\ \hbox{m}^{2}.\hbox{W}^{-1}$, respectively, for silicon nanowires with lengths varying from 3.6 to 14.9 mm.

AB - Amplitude and phase dynamics of silicon nanowires were measured using time-resolved spectroscopy. Time shifts of the maximum phase change and minimum amplitude as a function of pump power due to saturation of the free-carrier density were observed. A phenomenological impulse response model used to fit the experimental data indicated that the free-carrier lifetime was between $7.5 \leq \tau_{\rm fc} \leq 16.2\ \hbox{ns}$, and the two-photon absorption coefficient and the Kerr coefficient were $3 \times 10^{-12}\ \hbox{m.W}^{-1}$ and $4 \times 10^{-18}\ \hbox{m}^{2}.\hbox{W}^{-1}$, respectively, for silicon nanowires with lengths varying from 3.6 to 14.9 mm.

KW - Silicon nanowire

KW - Pump–probe spectroscopy

KW - Two-photon absorption (TPA)

KW - Free-carrier absorption (FCA)

U2 - 10.1109/JPHOT.2013.2246560

DO - 10.1109/JPHOT.2013.2246560

M3 - Journal article

SN - 1943-0655

VL - 5

SP - 4500111

JO - I E E E Photonics Journal

JF - I E E E Photonics Journal

IS - 2

ER -

Dynamic Characterization and Impulse Response Modeling of Amplitude and Phase Response of Silicon Nanowires

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Keywords

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Projects

SiMOF: CMOS-Compatible Silicon-Based Micro-Ring Resonator for On-Chip Optical Frequency Comb Generation (SiMOF)

Cite this