Lasing on whispering gallery modes was excited by optical pumping in single zinc oxide microwires fabricated by a simple carbothermal evaporation process. The experimentally observed laser modes agree precisely with the predicted energetic positions obtained from a plane wave model. Systematic diameter dependent measurements have been carried out for diameters of the microwires between 3 and 12μm. The investigated microlasers are found to have a lasing threshold of about 170kWcm2 at 10K.

1.
M. H.
Huang
,
S.
Mao
,
H.
Feick
,
H.
Yan
,
Y.
Wu
,
H.
Kind
,
E.
Weber
,
R.
Russo
, and
P.
Yang
,
Science
292
,
1897
(
2001
).
2.
K.
Bando
,
T.
Sawabe
,
K.
Asaka
, and
Y.
Masumoto
,
J. Lumin.
108
,
385
(
2004
).
3.
J. M.
Szarko
,
J. K.
Song
,
C. W.
Blackledge
,
I.
Swart
,
S. R.
Leone
,
S.
Li
, and
Y.
Zhao
,
Chem. Phys. Lett.
404
,
171
(
2005
).
4.
H.-C.
Hsu
,
C.-Y.
Wu
, and
W.-F.
Hsieh
,
J. Appl. Phys.
97
,
064315
(
2005
).
5.
J.
Wiersig
,
Phys. Rev. A
67
,
023807
(
2003
).
6.
T.
Nobis
,
E. M.
Kaidashev
,
A.
Rahm
,
M.
Lorenz
, and
M.
Grundmann
,
Phys. Rev. Lett.
93
,
103903
(
2004
).
7.
T.
Nobis
and
M.
Grundmann
,
Phys. Rev. A
72
,
063806
(
2005
).
8.
S.
Chang
,
N. B.
Rex
,
R. K.
Chang
,
G.
Chong
, and
L. J.
Guido
,
Appl. Phys. Lett.
75
,
166
(
1999
).
9.
X.
Liu
,
W.
Fang
,
Y.
Huang
,
X. H.
Wu
,
S. T.
Ho
,
H.
Cao
, and
R. P. H.
Chang
,
Appl. Phys. Lett.
84
,
2488
(
2004
).
10.
D.
Wang
,
H. W.
Seo
,
C.-C.
Tin
,
M. J.
Bozack
,
J. R.
Williams
,
M.
Park
, and
Y.
Tzeng
,
J. Appl. Phys.
99
,
093112
(
2006
).
11.
I.
Braun
,
G.
Ihlein
,
F.
Laeri
,
J. U.
Noeckel
,
G.
Schulz-Ekloff
,
F.
Schueth
,
U.
Vietze
,
O.
Weiss
, and
D.
Woehrle
,
Appl. Phys. B: Lasers Opt.
70
,
335
(
2000
).
12.
M.
Lorenz
,
J.
Lenzner
,
E. M.
Kaidashev
,
H.
Hochmuth
, and
M.
Grundmann
,
Ann. Phys.
13
,
39
(
2004
).
13.
B. Q.
Cao
,
M.
Lorenz
,
M.
Brandt
,
H.
von Wenckstern
,
J.
Lenzner
,
G.
Biehne
, and
M.
Grundmann
,
Phys. Status Solidi (RRL)
2
,
37
(
2008
).
14.
C.
Czekalla
,
J.
Lenzner
,
A.
Rahm
,
T.
Nobis
, and
M.
Grundmann
,
Superlattices Microstruct.
41
,
347
(
2007
).
15.
C.
Klingshirn
,
Semiconductor Optics
(
Springer
,
Berlin
,
2005
).
16.
D. M.
Bagnall
,
Y. F.
Chen
,
Z.
Zhu
,
T.
Yao
,
M. Y.
Shen
, and
T.
Goto
,
Appl. Phys. Lett.
73
,
1038
(
1998
).
17.
C.
Bundesmann
,
R.
Schmidt-Grund
, and
M.
Schubert
, in
Transparent Conductive Zincoxide
,
Springer Series in Materials Science
Vol.
104
, edited by
K.
Ellmer
,
A.
Klein
, and
B.
Rech
(
Springer
,
Berlin
,
2008
).
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