Amplified spontaneous emission in conjugated polyrotaxanes under quasi-cw pumping

Amplified spontaneous emission under millisecond pulsed excitation on a rotaxane-insulated conjugated polymer is reported. Pump-probe spectroscopy confirms the absence of polaron-pair absorption in the gain spectral region as the main factor contributing to quasi-steady-state amplified spontaneous e...

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Bibliographic Details
Main Authors: Mróz, M, Sforazzini, G, Zhong, Y, Wong, K, Anderson, H, Lanzani, G, Cabanillas-Gonzalez, J
Format: Journal article
Language:English
Published: 2013
Description
Summary:Amplified spontaneous emission under millisecond pulsed excitation on a rotaxane-insulated conjugated polymer is reported. Pump-probe spectroscopy confirms the absence of polaron-pair absorption in the gain spectral region as the main factor contributing to quasi-steady-state amplified spontaneous emission. The low polaron-pair yield in this compound is the likely result of effective backbone encapsulation provided by the threading ring. Copyright © 2013 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim.