Estimating the parameters of traps in quartz by the variable energy of stimulation optically stimulated luminescence (VES-OSL) method |
| |
| Institution: | 1. School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;2. Yunnan University, Kunming 650091, China;1. Department of Physics and Interdisciplinary Program of Biomedical, Mechanical and Electrical Engineering, Pukyong National University, Busan 608-737, Republic of Korea;2. Institute of Experimental Physics, University of Gdansk, Wita Stwosza 57, 80-952 Gdansk, Poland;1. School of Physical Science and Information Technology, LiaochengUniversity, Liaocheng 252059, China;2. Shandong Provinical Key Laboratory of Optical Communication Science and Technology, Liaocheng 252059, China;1. School of Physics & Electronic Engineering, Mianyang Normal University, Mianyang 621000, PR China;2. Department of Material Science, Sichuan University, Chengdu 610064, PR China;3. Research Center of Computational Physics, Mianyang Normal University, Mianyang 621000, PR China;1. Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, UK;2. Department of Physics, University of Malaya, 50603 Kuala Lumpur, Malaysia;3. Radiotherapy Physics, Level B, Queen Alexandra Hospital, Portsmouth PO6 3LY, UK;4. Department of Physics, Kuliyah of Science, International Islamic University Malaysia, 25200 Kuantan, Malaysia;5. Department of Physics, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia;6. Public Health England, CRCE, Chilton, Didcot, Oxon OX11 0RQ, UK;7. Integrated Lightwave Research Group, Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;8. Faculty of Engineering, Multimedia University, 2010 Cyberjaya, Selangor, Malaysia;9. Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia |
| |
| Abstract: | Optical-cross section that is a trap parameter estimated from the measurements of optically stimulated luminescence (OSL) is not a uniquely determined physical quantity. It depends not only on temperature and the energy of stimulation light but also, in the simplest case, on the optical depth of trap, the frequency of vibration mode and on the Huang-Rhys factor, i.e. the average number of phonons involved in the process of optical excitation of electrons from trap to conduction band. Conventional OSL measurement techniques do not enable to determine directly these parameters but they could be estimated by applying the variable energy of stimulation optically stimulated luminescence (VES-OSL) method. Recently it was put in to practice and the first VES-OSL curves were presented. In this study the outcomes of VES-OSL experiments are presented together with the first attempt of direct estimating the optical depth of traps active in OSL process in quartz. |
| |
| Keywords: | Optically stimulated luminescence Variable energy stimulation Quartz |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
