Abstract
Lasers with multi-wavelength colloidal quantum dots (CQDs) can be achieved using complex grating structures and flexible substrate. The structure contains graduated periods and rectangular cavity fabricated through interference lithography, which acts as the distributed feedback cavity. A layer of densely packed CQD film is deposited on the cavity via spin coating technique. The performance of CQD lasers based on different distributed feedback cavities is investigated. Multi-wavelength lasing is achieved based on a flexible rectangular cavity.
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This work was supported by National Natural Science Foundation of China (Grant Nos. 61822501, 11574015) and Beijing Natural Science Foundation (Grant No. Z180015).
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Hayat, A., Tong, J., Chen, C. et al. Multi-wavelength colloidal quantum dot lasers in distributed feedback cavities. Sci. China Inf. Sci. 63, 182401 (2020). https://doi.org/10.1007/s11432-019-2753-3
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DOI: https://doi.org/10.1007/s11432-019-2753-3