Angulo G, Kardaś TM, Rodríguez-Rodríguez H. Some aspects about time broadening in fluorescence up-conversion measurements.
THE REVIEW OF SCIENTIFIC INSTRUMENTS 2021;
92:063003. [PMID:
34243531 DOI:
10.1063/5.0047695]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 06/05/2021] [Indexed: 06/13/2023]
Abstract
Several aspects contributing to the temporal broadening in the measurement of ultrafast fluorescence by means of up-conversion wave mixing are presented: the characteristics of the sample, those of the collection optics, and the wave mixing with the gate pulse in a non-linear crystal. It is concluded that these contributions are emission wavelength dependent and can be as important as the pulse durations in determining the instrument response function in this technique.
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