Measurements of the kinetics of slowly decaying luminescence excited by vacuum and deep ultraviolet radiation

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical Pub Date : 2025-09-27 DOI:10.1016/j.sna.2025.117081

D.S. Glazunov, E.F. Martynovich

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Abstract

Simple and inexpensive experimental methods and means for measuring the kinetics of long-term, including delayed, luminescence of various media excited by VUV and DUV radiation pulses have been developed. An analysis of physical and mathematical models of luminescent media in which two time components of significantly different durations with the same quantum yield are simultaneously excited has been performed. It has been shown that when using nano- or picosecond excitation pulses, the intensity of fast components exceeds the intensity of slow components by 4–5 decimal orders. Due to nonlinear distortions of signals in photodetector paths, this complicates the use of simple methods of direct oscillography for studying the kinetics of slow luminescence components. Sources of quasi-rectangular pulses of micro-, milli- and second duration have been created based on VUV and DUV excilamps. Tests of the measuring system were carried out with the study of the kinetics of long-term luminescence of diamond, ruby, and leucosapphire irradiated with fast neutrons.

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真空和深紫外激发慢衰发光动力学的测量

开发了测量各种介质在VUV和DUV辐射脉冲激发下的长期（包括延迟）发光动力学的简单而廉价的实验方法和手段。本文分析了具有相同量子产率但持续时间差异显著的两个时间分量同时被激发的发光介质的物理和数学模型。研究表明，当使用纳米或皮秒激励脉冲时，快分量的强度比慢分量的强度高出4-5个小数数量级。由于光电探测器路径中信号的非线性畸变，这使得使用简单的直接示波器方法来研究慢速发光成分的动力学变得复杂。基于VUV和DUV激振放大器，已经产生了微、毫微米和秒持续时间的准矩形脉冲源。通过对快中子辐照下金刚石、红宝石和白蓝宝石长期发光动力学的研究，对该测量系统进行了测试。

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来源期刊

Sensors and Actuators A-physical 工程技术-工程：电子与电气

CiteScore

8.10

自引率

6.50%

发文量

630

审稿时长

49 days

期刊介绍： Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas: • Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results. • Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon. • Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays. • Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers. Etc...