The deposition of a dye-doped mesostructured silica/block copolymer thin film on a mesoporous thin film, itself deposited on an optical fiber, represents a new way to laser materials. The microring laser implemented exhibits a low threshold (∼1.5 kW cm-2) and can be operated under ambient conditions for several tens of thousands of pulses.
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Wirnsberger et al. (2000) studied this question.
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