With the development of nano-optical technologies such as chip-level optical communication and biomedical imaging, research on lasers has entered the sub-wavelength range. The development of sub-wavelength lasers such as nano-lasers is mainly based on surface plasmon enhanced emission light technology. However, the general nano-laser wavelength is fixed, which limits its application, and Raman light scattering can convert the pump light to a new wavelength. The development of a new type of Raman nano-laser can obtain a wavelength-adjustable nano-laser, which may be obtained in applications. Innovative breakthroughs.
Prof. Shuang Shuangyi's team used a space-limited growth method to synthesize a new type of graphene-based superlattice material that can excite surface plasmons at a wide wavelength range in the visible to near infrared region. The superlattice material can obtain wavelength-tunable Raman nano lasers. The Raman nano laser has the characteristics of no threshold, room temperature operation, adjustable laser wavelength, and a wide range of laser wavelengths—from visible light to near-infrared light. It is hopeful that this Raman nano laser can be used in nano-optical technologies such as biomedical imaging. New Breakthroughs This research was funded by the National Natural Science Foundation of China and the Fundamental Research Foundation of the Shenzhen Branch.
(Original title: Prof. Shuang Suiyi's team of Institute of Optoelectronic Engineering has published in Advanced Materials)
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