We present a versatile concept for all optical terahertz (THz) amplitude modulators based on a Fabry-Pérot semiconductor cavity design. Employing the high reflectivity of two parallel meta-surfaces allows for trapping selected THz photons within the cavity and thus only a weak optical modulation of the semiconductor absorbance is required to significantly damp the field within the cavity. The optical switching yields to modulation depths of more than 90% with insertion efficiencies of 80%.

1.
P. U.
Jepsen
,
D. G.
Cooke
, and
M.
Koch
,
Laser Photonics Rev.
5
,
124
(
2011
).
2.
B.
Scherger
,
N.
Born
,
C.
Jansen
,
S.
Schumann
,
M.
Koch
, and
K.
Wiesauer
,
IEEE Trans. Terahertz Sci. Technol.
2
,
556
(
2012
).
3.
I. H.
Libon
,
S.
Baumgärtner
,
M.
Hempel
,
N. E.
Hecker
,
J.
Feldmann
,
M.
Koch
, and
P.
Dawson
,
Appl. Phys. Lett.
76
,
2821
(
2000
).
4.
B.
Scherger
,
M.
Scheller
,
N.
Vieweg
,
S. T.
Cundiff
, and
M.
Koch
,
Opt. Express
19
,
24884
(
2011
).
5.
B.
Scherger
,
M.
Scheller
,
C.
Jansen
,
M.
Koch
, and
K.
Wiesauer
,
Appl. Opt.
50
,
2256
(
2011
).
6.
N.
Engheta
and
R. W.
Ziolkowski
,
Metamaterials: Physics and Engineering Explorations
(
Wiley
,
2006
), p.
414
.
7.
M.
Rahm
,
J.-S.
Li
, and
W. J.
Padilla
,
J. Infrared, Millimeter, Terahertz Waves
34
,
1
(
2013
).
8.
H.
Chen
,
J.
Su
,
J.
Wang
, and
X.
Zhao
,
Opt. Express
19
,
3599
(
2011
).
9.
J.
Li
,
J.
He
, and
Z.
Hong
,
Appl. Opt.
46
,
5034
(
2007
).
10.
C. M.
Yee
and
M. S.
Sherwin
,
Appl. Phys. Lett.
94
,
154104
(
2009
).
11.
H.
Nĕmec
,
P.
Kuzel
,
L.
Duvillaret
,
A.
Pashkin
,
M.
Dressel
, and
M. T.
Sebastian
,
Opt. Lett.
30
,
549
(
2005
).
12.
S. F.
Busch
,
S.
Schumann
,
C.
Jansen
,
M.
Scheller
,
M.
Koch
, and
B. M.
Fischer
,
Appl. Phys. Lett.
100
,
261109
(
2012
).
13.
T.
Kleine-Ostmann
,
P.
Dawson
,
K.
Pierz
,
G.
Hein
, and
M.
Koch
,
Appl. Phys. Lett.
84
,
3555
(
2004
).
14.
L.
Ju
,
B.
Geng
,
J.
Horng
,
C.
Girit
,
M.
Martin
,
Z.
Hao
,
H. A.
Bechtel
,
X.
Liang
,
A.
Zettl
,
Y. R.
Shen
, and
F.
Wang
,
Nat. Nanotechnol.
6
,
630
(
2011
).
15.
H.-T.
Chen
,
W. J.
Padilla
,
J. M. O.
Zide
,
S. R.
Bank
,
A. C.
Gossard
,
A. J.
Taylor
, and
R. D.
Averitt
,
Opt. Lett.
32
,
1620
(
2007
).
16.
E.
Hendry
,
M.
Lockyear
,
J.
Gómez Rivas
,
L.
Kuipers
, and
M.
Bonn
,
Phys. Rev. B
75
,
235305
(
2007
).
17.
B.
Sensale-Rodriguez
and
T.
Fang
,
Appl. Phys. Lett.
99
,
113104
(
2011
).
18.
P.
Weis
,
J. L.
Garcia-Pomar
,
M.
Höh
,
B.
Reinhard
,
A.
Brodyanski
, and
M.
Rahm
,
ACS Nano
6
,
9118
(
2012
).
19.
N.
Born
,
M.
Reuter
,
M.
Koch
, and
M.
Scheller
,
Opt. Lett.
38
,
908
(
2013
).
20.
T.
Chen
,
P.
Liu
,
J.
Liu
, and
Z.
Hong
,
Appl. Phys. B
3
,
1
5
(
2013
).
21.
I.
Yamada
,
K.
Takano
,
M.
Hangyo
,
M.
Saito
, and
W.
Watanabe
,
Opt. Lett.
34
,
274
(
2009
).
22.
G.
Derst
,
C.
Wilbertz
,
K. L.
Bhatia
,
W.
Krätschmer
, and
S.
Kalbitzer
,
Appl. Phys. Lett.
54
,
1722
(
1989
).
23.
M.
van Exter
and
D.
Grischkowsky
,
Appl. Phys. Lett.
56
,
1694
(
1990
).
24.
D. K.
Schroder
,
IEEE Trans. Electron Devices
44
,
160
(
1997
).
You do not currently have access to this content.