In this paper, we report on the observation of stimulated Raman scattering in amorphous silicon nanocrystals embedded in Si-rich nitride/silicon superlattice structures (SRN/Si-SLs). In particular, we have experimentally demonstrated amplification of Stokes signal up to 0.9dBcm at 1540.6nm using a 1427nm continuous-wavelength pump laser, consistent with a preliminary valuation of approximately a fourfold enhancement of the gain coefficient in Raman amplifier based on SRN/Si-SLs with respect to silicon. Finally, a significant reduction in threshold power of about 40% is also reported. Our findings indicate that silicon nanocrystals embedded in Si nitride-based superlattice structures show great promise for Si-based Raman lasers.

1.
Silicon Photonics
, edited by
L.
Pavesi
and
D. J.
Lockwood
(
Springer
,
Berlin
,
2004
).
2.
R.
Soref
,
IEEE J. Sel. Top. Quantum Electron.
12
,
1678
(
2006
).
3.
O.
Boyraz
and
B.
Jalali
,
Opt. Express
12
,
5269
(
2004
).
4.
H.
Rong
,
A.
Liu
,
R.
Jones
,
O.
Cohen
,
D.
Hak
,
R.
Nicolaescu
,
A.
Fang
, and
M.
Paniccia
,
Nature (London)
433
,
292
(
2005
).
5.
H.
Rong
,
R.
Jones
,
A.
Liu
,
O.
Cohen
,
D.
Hak
,
R.
Nicolaescu
,
A.
Fang
, and
M.
Paniccia
,
Nature (London)
433
,
725
(
2005
).
6.
H.
Rong
,
S.
Xu
,
Y. H.
Kuo
,
V.
Sih
,
O.
Cohen
,
O.
Raday
, and
M.
Paniccia
,
Nat. Photonics
1
,
232
(
2007
).
7.
H.
Rong
,
S.
Xu
,
O.
Cohen
,
O.
Raday
,
M.
Lee
,
V.
Sih
, and
M.
Paniccia
,
Nat. Photonics
2
,
170
(
2008
).
8.
B.
Jalali
,
V.
Raghunathan
,
D.
Dimitropoulos
, and
O.
Boyraz
,
IEEE J. Sel. Top. Quantum Electron.
12
,
412
(
2006
).
9.
R.
Dekker
,
N.
Usechak
,
M.
Först
, and
A.
Driessen
,
J. Phys. D
40
,
R249
(
2007
).
10.
L.
Sirleto
,
V.
Raghunathan
,
A.
Rossi
, and
B.
Jalali
,
Electron. Lett.
40
,
121
(
2004
).
11.
L.
Sirleto
,
M. A.
Ferrara
,
I.
Rendina
, and
B.
Jalali
,
Appl. Phys. Lett.
88
,
211105
(
2006
).
12.
J. M.
Ralston
and
R. K.
Chang
,
Phys. Rev. B
2
,
1858
(
1970
).
13.
L.
Dal Negro
,
R.
Li
,
J.
Warga
, and
S. N.
Basu
,
Appl. Phys. Lett.
92
,
181105
(
2008
).
14.
L.
Dal Negro
,
R.
Li
,
J.
Warga
,
S.
Yerci
,
S.
Basu
,
H.
Hamel
, and
G.
Galli
, in
Silicon Nanophotonics: Basic Principles, Present Status and Perspectives
, edited by
L.
Khriachtchev
(
Pan Stanford
,
Hackensack, NJ
,
2008
).
15.
L.
Dal Negro
,
J. H.
Yi
,
J.
Michel
,
L. C.
Kimerling
,
T.-W. F.
Chang
,
V.
Sukhovatkin
, and
E. H.
Sargent
,
Appl. Phys. Lett.
88
,
233109
(
2006
).
16.
L.
Dal Negro
,
J. H.
Yi
,
L. C.
Kimerling
,
S.
Hamel
,
A.
Williamson
, and
G.
Galli
,
Appl. Phys. Lett.
88
,
183103
(
2006
).
17.
R.
Li
,
J. R.
Schneck
,
J.
Warga
,
L. D.
Ziegler
, and
L.
Dal Negro
,
Appl. Phys. Lett.
,
93
,
091119
(
2008
).
18.
N.
Bloembergen
and
Y. R.
Shen
,
Phys. Rev. Lett.
12
,
504
(
1964
).
19.
Y. R.
Shen
and
N.
Bloembergen
,
Phys. Rev.
137
,
A1787
(
1965
).
20.
A.
Owyoung
,
Opt. Commun.
22
,
323
(
1977
).
21.
H.
Ritcher
,
Z. P.
Wang
, and
L.
Ley
,
Solid State Commun.
39
,
625
(
1981
).
22.
H.
Campbell
and
P. M.
Fauchet
,
Solid State Commun.
58
,
739
(
1986
).
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