Measuring apparatus of light emission life of sample

Abstract

Abstract PURPOSE:To shorten measuring time and to measure a light emission life with high accuracy, by measuring a light emission waveform and an exciting light waveform with a time-voltage transducer of multi-channel constitution at the same time. CONSTITUTION:Multi-channel time-voltage transducers 19, 20 for pulse light emission waveform measurement and exciting light pulse waveform measurement, are started by a start pulse generation means 12 moving in accordance with rising of the light emission waveform from a light emission source 11. On one hand, the light emission waveform is divided in two by a beam splitter and the channel corresponding to the transducer 19 is controlled with a photodetector 16 and a pulse shaping circuit 28 etc. and then, voltage corresponding to pulse number of a photoelectron is generated. The voltage corresponding to the pulse number of the photoelectron basing on the exciting light waveform which is generated from a sample 17 by irradiating the other divided light, is generated from the transducer 20 at the same time and in the same way. Further, the light emission life is measured with high accuracy in a short measuring time by the real light emission waveform by a deconvolution operation of each pulse waveform of the light emission and exciting light basing on a photoelectron generation hystogram by a processing circuit 21 including a computer.

Inventors

• 👤 Kiyoaki Hara
• 👤 清明 原
• 👤 Kazunari Yokoyama
• 👤 一成 横山

Bibliographic Details