2019
DOI: 10.1103/physreva.99.013812
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Random-laser dynamics with temporally modulated pump

Abstract: We present an experimental study of the effects of temporal modulation of the pump intensity on a random laser. The nanosecond pump pulses exhibit rapid intensity fluctuations which differ from pulse to pulse. Specific temporal profiles of the pump pulses produce extraordinarily strong emission from the random laser. This process is deterministic and insensitive to the spatial configuration of the scatterers and spontaneous emission noise.

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Cited by 9 publications
(1 citation statement)
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“…In this system, multiple light-scattering between nanostructures and subsequent optical amplification contribute to lasing oscillation. Due to their randomness, strongly fluctuated frequency multi-mode structures appear on the emission spectrum, and it is difficult to control the number of lasing peaks and the intensity [45]. Furthermore, a large background spontaneous light emission band was observed because of inevitable scattering loss.…”
Section: Introductionmentioning
confidence: 99%
“…In this system, multiple light-scattering between nanostructures and subsequent optical amplification contribute to lasing oscillation. Due to their randomness, strongly fluctuated frequency multi-mode structures appear on the emission spectrum, and it is difficult to control the number of lasing peaks and the intensity [45]. Furthermore, a large background spontaneous light emission band was observed because of inevitable scattering loss.…”
Section: Introductionmentioning
confidence: 99%