Ultraviolet whispering-gallery-mode lasing in ZnO micro/nano sphere crystal

被引：46

作者：

Okazaki, Kota ^{[1
]}

Shimogaki, Tetsuya ^{[1
]}

Fusazaki, Koshi ^{[1
]}

Higashihata, Mitsuhiro ^{[1
]}

Nakamura, Daisuke ^{[1
]}

Koshizaki, Naoto ^{[2
]}

Okada, Tatsuo ^{[1
]}

机构：

[1] Kyushu Univ, Grad Sch Informat Sci & Elect Engn, Fukuoka 8190395, Japan

[2] Natl Inst Adv Ind Sci & Technol, NRI, Tsukuba, Ibaraki 3058565, Japan

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 21期

基金：

日本科学技术振兴机构; 日本学术振兴会;

关键词：

LASER; NANOSHEET; EMISSION; NANOWIRE;

D O I：

10.1063/1.4768696

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report ultraviolet (UV) whispering-gallery-mode (WGM) lasing in a zinc oxide (ZnO) micro/nanosphere crystal fabricated by simply ablating a ZnO sintered target, which was much more productive method without any time-consuming crystal-growth process. The lasing spectral mode spacing was controlled by changing the diameters, and single-mode lasing was realized from a ZnO nanosphere. Experimental results were in good agreement with predictions from WGM theories. Since the ZnO sphere can operate as an active WGM refractometric sensor for small molecules in UV region, high sensitivity enhanced by high quality factor, refractive index, and wavelength dispersion can be expected. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4768696]

引用

页数：5

共 30 条

[1]

Adachi S., 1999, OPTICAL CONSTANTS CR, P427

[2] Fiber-coupled microsphere laser [J].

Cai, M ;

Painter, O ;

Vahala, KJ ;

Sercel, PC .

OPTICS LETTERS, 2000, 25 (19) :1430-1432

[3] Stimulated Optical Emission from ZnO Nanobelts Grown with a Simple Carbothermal Evaporation Method [J].

Cao, B. Q. ;

Sakai, K. ;

Nakamura, D. ;

Palani, I. A. ;

Gong, H. B. ;

Xu, H. Y. ;

Higashihata, M. ;

Okada, T. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (05) :1702-1707

[4] ZnO Nanowalls Grown with High-Pressure PLD and Their Applications as Field Emitters and UV Detectors [J].

Cao, B. Q. ;

Matsumoto, T. ;

Matsumoto, M. ;

Higashihata, M. ;

Nakamura, D. ;

Okada, T. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (25) :10975-10980

[5] Random Lasers with coherent feedback [J].

Cao, H ;

Xu, JYY ;

Ling, Y ;

Burin, AL ;

Seeling, EW ;

Liu, X ;

Chang, RPH .

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 2003, 9 (01) :111-119

[6] Room Temperature Excitonic Whispering Gallery Mode Lasing from High-Quality Hexagonal ZnO Microdisks [J].

Chen, Rui ;

Ling, Bo ;

Sun, Xiao Wei ;

Sun, Han Dong .

ADVANCED MATERIALS, 2011, 23 (19) :2199-+

[7] ZnO-Microrod/p-GaN Heterostructured Whispering-Gallery-Mode Microlaser Diodes [J].

Dai, Jun ;

Xu, Chun Xiang ;

Sun, Xiao Wei .

ADVANCED MATERIALS, 2011, 23 (35) :4115-+

[8] Co-existence of strongly and weakly localized random laser modes [J].

Fallert, Johannes ;

Dietz, Roman J. B. ;

Sartor, Janos ;

Schneider, Daniel ;

Klingshirn, Claus ;

Kalt, Heinz .

NATURE PHOTONICS, 2009, 3 (05) :279-282

[9] Whispering gallery mode biosensor operated in the stimulated emission regime [J].

Francois, Alexandre ;

Himmelhaus, Michael .

APPLIED PHYSICS LETTERS, 2009, 94 (03)

[10] Catalyst-free synthesis of vertically-aligned ZnO nanowires by nanoparticle-assisted pulsed laser deposition [J].

Guo, R. Q. ;

Nishimura, J. ;

Matsumoto, M. ;

Nakamura, D. ;

Okada, T. .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2008, 93 (04) :843-847

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