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.

中文翻译：

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分布反馈腔中的多波长胶体量子点激光器

使用复杂的光栅结构和柔性基板可以实现具有多波长胶体量子点（CQD）的激光器。该结构包含刻度周期和通过干涉光刻制造的矩形腔，该矩形腔用作分布式反馈腔。通过旋涂技术将一层紧密堆积的CQD薄膜沉积在空腔上。研究了基于不同分布反馈腔的CQD激光器的性能。基于柔性矩形腔体可实现多波长激光发射。