Opt Lett. 2018 Jun 1;43(11):2575-2578. doi: 10.1364/OL.43.002575.
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.
时间分辨技术广泛用于测量分子激发态的光谱和寿命。然而，相对的仪器通常需要门控探测器和相位匹配电路，这在实现和维护上都很昂贵。在此，通过调整激发和探测光路穿过同一个斩波器，同时充当脉冲发生器和探测快门，开发了一种新颖的自动锁定时间门控荧光（TGL）光谱测量方法。该低成本系统不需要相位匹配电路或控制系统。它可以检测延迟时间仅为微秒的 TGL 光谱，为热激活延迟荧光检测提供了高时间分辨率。
