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dc.contributor.authorBarik, Sabyasachi-
dc.date.accessioned2024-12-02T10:15:01Z-
dc.date.available2024-12-02T10:15:01Z-
dc.date.issued2013-11-26-
dc.identifier.citationShadak Alee, K., Barik, S., & Mujumdar, S. (2013). Förster energy transfer induced random lasing at unconventional excitation wavelengths. Applied Physics Letters, 103(22), 221112.en_US
dc.identifier.urihttps://doi.org/10.1063/1.4835216-
dc.identifier.urihttp://idr.niser.ac.in:8080/jspui/handle/123456789/1053-
dc.description.abstractWe experimentally demonstrate efficient lasing from a Rhodamine-nanoscatterer random laser when pumped with unconventional wavelengths, at which the absorption of Rhodamine is negligible. Förster-type energy transfer was realized by using Coumarin molecules as donors. Explicit time-resolved spectroscopy provided direct evidence for the nonradiative transfer with ∼48% efficiency. We obtained lasing at reduced thresholds by a factor of over 3 and increased amplification rates by a factor of ∼4 in the Förster regime, even in samples with sub-diffusive disorder strength. We characterize the efficacy of the Förster transfer induced lasing over a range of unconventional wavelengths for the Rh-based system.en_US
dc.language.isoenen_US
dc.publisherApplied Physics Lettersen_US
dc.titleFörster energy transfer induced random lasing at unconventional excitation wavelengthsen_US
dc.typeArticleen_US
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