Lasing characteristics of curved semiconductor nanowires

Abstract

The characteristics of curved semiconductor nanowire (NW) lasers were investigated. The red-shift in the laser spectra with increasing bending angles can be observed much more clearly than that in the photoluminescence (PL) spectra. Due to oscillation of light in resonant cavity, the bending loss of laser exhibits multiple times amplification of that of PL. Furthermore, an abnormal phenomenon of dominant peak switching is found in curved NWs when increasing the pump power, which has been first discovered and reported.

Keywords

semiconductor nanowire / lasing characteristics / red-shift / bending loss / dominant peaks

References

[1] Yan R X, Gargas D, Yang P D. Nanowire photonics. Nature Photonics, 2009, 3(10): 569-576

[2] Gradečak S, Qian F, Li Y, Park H G, Lieber C M. GaN nanowire lasers with low lasing thresholds. Applied Physics Letters, 2005, 87(17): 173111

[3] Song Y M, Xie Y, Malyarchuk V, Xiao J, Jung I, Choi K J, Liu Z, Park H, Lu C, Kim R H, Li R, Crozier K B, Huang Y, Rogers J A. Digital cameras with designs inspired by the arthropod eye. Nature, 2013, 497(7447): 95-99

[4] Xu S, Qin Y, Xu C, Wei Y G, Yang R, Wang Z L. Self-powered nanowire devices. Nature Nanotechnology, 2010, 5(5): 366-373

[5] Tong L M, Gattass R R, Ashcom J B, He S L, Lou J Y, Shen M Y, Maxwell I, Mazur E. Subwavelength-diameter silica wires for low-loss optical wave guiding. Nature, 2003, 426(6968): 816-819

[6] Han X B, Kou L Z, Lang X L, Xia J B, Wang N, Qin R, Xu J, Liao Z M, Zhang X Z, Shan X D, Song X F, Gao J Y, Guo W L, Yu D P. Electronic and mechanical coupling in bent ZnO nanowires. Advanced Materials, 2009, 21(48): 4937-4941

[7] Yang W S, Ma Y G, Wang Y P, Meng C, Wu X Q, Ye Y, Dai L, Tong L M, Liu X, Yang Q. Bending effects on lasing action of semiconductor nanowires. Optics Express, 2013, 21(2): 2024-2031

[8] Ma C, Ding Y, Moore D, Wang X D, Wang Z L. Single-crystal CdSe nanosaws. Journal of American Chemical Society, 2004, 126(3): 708-709

[9] Demtroeder W. Laser Spectroscopy. 3rd ed. New York: Springer, 2003

[10] Li J, Meng C, Liu Y, Wu X, Lu Y, Ye Y, Dai L, Tong L, Liu X, Yang Q. Wavelength tunable CdSe nanowire lasers based on the absorption-emission-absorption process. Advanced Materials, 2013, 25(6): 833-837, 832

[11] Johnson J C, Choi H J, Knutsen K P, Schaller R D, Yang P, Saykally R J. Single gallium nitride nanowire lasers. Nature Materials, 2002, 1(2): 106-110

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant No. 61177062), the Program for Zhejiang Leading Team of S&T Innovation, the Fundamental Research Funds for the Central Universities.

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg