Electrically and thermally tunable lasing emission and amplified spontaneous emission are demonstrated in a quantum dot-embedded cholesteric liquid crystal (QDCLC) cell. The combination of a stable QD gain medium and a tunable CLC microresonator results in the development of tunable coherent light sources or laser devices with advantages of low cost, highly flexible tunability, high stability, a high damage threshold, low beam divergence, and high reusability.
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Chen et al. (2013) studied this question.
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