Abstract
Random lasers have fascinating emission properties that lie somewhere between those of a conventional laser and a common light-bulb. We have created a random laser that can be brought above and below its threshold for laser emission by small changes in its temperature, thereby creating a light source with a temperature-tunable colour spectrum. As a single random laser can be made as small as a grain of tens of micrometres in diameter, we expect our device to find application in photonics, temperature-sensitive displays and screens, and in remote temperature sensing.
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Wiersma, D., Cavalieri, S. A temperature-tunable random laser. Nature 414, 708–709 (2001). https://doi.org/10.1038/414708a
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DOI: https://doi.org/10.1038/414708a
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