The optical gain of single quantum well laser structures on semipolar (112¯2)-GaN in dependence of the optical polarization and the resonator orientation has been studied by variable stripe length method. The c′-[1123¯] resonator shows maximum gain in TE mode, followed by the m-[11¯00]-resonator with extraordinary polarization. The anisotropic gain behaviour is explained by valence sub-band ordering and birefringence of the wurtzite crystal, resulting in a modification of the transition matrix element for stimulated emission. Measurements are accompanied by 6 × 6 k · p band structure calculations and gain analysis.

1.
U. T.
Schwarz
and
M.
Kneissl
,
Phys. Status Solidi
1
,
A44
(
2007
).
2.
J.
Seo Im
,
H.
Kollmer
,
J.
Off
,
A.
Sohmer
,
F.
Scholz
, and
A.
Hangleiter
,
Phys. Rev. B
57
,
R9435
(
1998
).
3.
Y.
Enya
,
Y.
Yoshizumi
,
T.
Kyono
,
K.
Akita
,
M.
Ueno
,
M.
Adachi
,
T.
Sumitomo
,
S.
Tokuyama
,
T.
Ikegami
,
K.
Katayama
, et al,
Appl. Phys. Express
2
,
082101
(
2009
).
4.
M.
Suzuki
and
T.
Uenoyama
,
Appl. Phys. Lett.
69
,
3378
(
1996
).
5.
L.
Schade
,
U. T.
Schwarz
,
T.
Wernicke
,
M.
Weyers
, and
M.
Kneissl
,
Phys. Status Solidi B
248
,
638
(
2011
).
6.
L.
Schade
,
U. T.
Schwarz
,
T.
Wernicke
,
J.
Rass
,
S.
Ploch
,
M.
Weyers
, and
M.
Kneissl
,
Appl. Phys. Lett.
99
,
051103
(
2011
).
7.
D. S.
Sizov
,
R.
Bhat
,
J.
Napierala
,
C.
Gallinat
,
K.
Song
, and
C. E.
Zah
,
Appl. Phys. Express
3
,
071001
(
2009
).
8.
T.
Kyono
,
Y.
Yoshizumi
,
Y.
Enya
,
M.
Adachi
,
S.
Tokuyama
,
M.
Ueno
,
K.
Katayama
, and
T.
Nakamura
,
Appl. Phys. Express
3
,
011003
(
2010
).
9.
K.
Kojima
,
A. A.
Yamaguchi
,
M.
Funato
,
Y.
Kawakami
, and
S.
Noda
,
Jpn. J. Appl. Phys.
49
,
081001
(
2010
).
10.
D.
Sizov
,
R.
Bhat
,
A.
Heberle
,
N.
Visovsky
, and
C. E.
Zah
,
Appl. Phys. Lett.
99
,
041117
(
2011
).
11.
J.
Rass
,
T.
Wernicke
,
R.
Kremzow
,
W.
John
,
S.
Einfeldt
,
P.
Vogt
,
M.
Weyers
, and
M.
Kneissl
,
Phys. Status Solidi A
207
,
1361
(
2010
).
12.
M.
Brendel
,
A.
Kruse
,
H.
Jönen
,
L.
Hoffmann
,
H.
Bremers
,
U.
Rossow
, and
A.
Hangleiter
,
Appl. Phys. Lett.
99
,
031106
(
2011
).
13.
W. G.
Scheibenzuber
,
U. T.
Schwarz
,
R. G.
Veprek
,
B.
Witzigmann
, and
A.
Hangleiter
,
Phys. Rev. B
80
,
115320
(
2009
).
14.
J.
Rass
,
T.
Wernicke
,
G.
Wolfgang
,
W. G.
Scheibenzuber
,
U. T.
Schwarz
,
J.
Kupec
,
B.
Witzigmann
,
P.
Vogt
,
S.
Einfeldt
,
M.
Weyers
, and
M.
Kneissl
,
Phys. Status Solidi
4
,
1
(
2010
).
15.
S.
Ploch
,
T.
Wernicke
,
D. V.
Dinh
,
M.
Pristovsek
, and
M.
Kneissl
, “Surface diffusion and layer morphology and properties of semipolar (11-22) GaN grown by metal-organic vapor phase epitaxy” (unpublished).
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