Auto-phase-locked measurement of time-gated luminescence spectra with a microsecond delay

Zece Zhu, Xuewen Shu*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Time-resolved techniques are widely used in measuring the spectra and lifetimes of the excited states of molecules. However, the relative apparatus always requires gated detector and phase-matching circuitry, which is expensive to implement and maintain. Herein, a novel auto-phase-locked method for time-gated luminescence (TGL) spectra measurement was developed by adjusting the exciting and detecting optical paths to pass through the same chopper wheel, which simultaneously acted as a pulse generator and detecting shutter. This low-cost system needs no phase-matching circuitry or control system. It can detect TGL spectra with a delay time of only microseconds, demonstrating a high temporal resolution for thermally activated delayed fluorescence detection.

Original languageEnglish
Pages (from-to)2575-2578
Number of pages4
JournalOptics Letters
Volume43
Issue number11
Early online date30 Apr 2018
DOIs
Publication statusPublished - 23 May 2018

Fingerprint

luminescence
phase matching
electric choppers
pulse generators
shutters
wheels
optical paths
temporal resolution
time lag
adjusting
life (durability)
fluorescence
high resolution
detectors
excitation
molecules

Cite this

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abstract = "Time-resolved techniques are widely used in measuring the spectra and lifetimes of the excited states of molecules. However, the relative apparatus always requires gated detector and phase-matching circuitry, which is expensive to implement and maintain. Herein, a novel auto-phase-locked method for time-gated luminescence (TGL) spectra measurement was developed by adjusting the exciting and detecting optical paths to pass through the same chopper wheel, which simultaneously acted as a pulse generator and detecting shutter. This low-cost system needs no phase-matching circuitry or control system. It can detect TGL spectra with a delay time of only microseconds, demonstrating a high temporal resolution for thermally activated delayed fluorescence detection.",
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Auto-phase-locked measurement of time-gated luminescence spectra with a microsecond delay. / Zhu, Zece; Shu, Xuewen.

In: Optics Letters, Vol. 43, No. 11, 23.05.2018, p. 2575-2578.

Research output: Contribution to journalArticle

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