Nanolaser arrays based on individual waved CdS nanoribbons

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• 作者：Qinglin Zhang ; Xiaoli Zhu ; Yunyun Li ; Junwu Liang ; Tianren Chen ; Peng Fan ; Hong Zhou ; Wei Hu ; Xiujuan Zhuang and Anlian Pan
• 刊名：Laser & Photonics Reviews
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：10
• 期：3
• 页码：458-464
• 全文大小：1360K
• ISSN：1863-8899

文摘

Nanoscale lasers are attractive for their potential applications in highly integrated photonic devices and systems. Here, nanolaser arrays are realized based on individual waved CdS nanoribbons (NRs) with periodically modulating thickness along the length direction. Microstructure investigations reveal that such a waved NR is formed with triangular-prism-like ridges alternately assembled on both sides of a surface flat nanoribbon. Under the focused laser (488 nm) excitation, the emitted light is guided along the length of the waved ribbons and can be well confined into theses ridges, being reflected and leaked out at their ends along both the lateral sides of the NRs. Polarization measurements further demonstrate the formation of the cavities along the length of the ridges. Under pulse laser excitation, the confined light in all these parallel ridges can resonate and realize lasing, forming a nanolaser array based on these individual waved NRs. These nanolasers arrays have potential applications in highly integrated photonics, signal processing, and high-throughput sensing.