Room-Temperature Dual-Wavelength Lasing from Single-Nanoribbon Lateral Heterostructures

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• 作者：Jinyou Xu ; Liang Ma ; Pengfei Guo ; Xiujuan Zhuang ; Xiaoli Zhu ; Wei Hu ; Xiangfeng Duan ; Anlian Pan
• 刊名：The Journal of the American Chemical Society
• 出版年：2012
• 出版时间：August 1, 2012
• 年：2012
• 卷：134
• 期：30
• 页码：12394-12397
• 全文大小：287K
• 年卷期：v.134,no.30(August 1, 2012)
• ISSN：1520-5126

文摘

Nanoscale dual-wavelength lasers are attractive for their potential applications in highly integrated photonic devices. Here we report the growth of nanoribbon lateral heterostructures made of a CdS_xSe_1鈥?i>x central region with epitaxial CdS lateral sides using a multistep thermal evaporation route with a moving source. Under laser excitation, the emission of these ribbons indicates sandwich-like structures along the width direction, with characteristic red emission in the center and green emission at both edges. More importantly, dual-wavelength lasing with tunable wavelengths is demonstrated at room temperature based on these single-nanoribbon heterostructures for the first time. These achievements represent a significant advance in designing nanoscale dual-wavelength lasers and have the potential to open up new and exciting opportunities for diverse applications in integrated photonics, optoelectronics, and sensing.