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您的检索式：作者名="Asrul Izam AZMI"
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| 1 | Fiber Laser Based Hydrophone Systems显示文摘我们报导我们分布式的反馈纤维激光上的最近的工作基于水中听音器。与敏感有关的一些问题例如纤维激光阶段状况,解调,并且包装,也被讨论。与适当数字信号处理(DSP ) 的发展技术和包装图案,一种 interferometric 类型散布了反馈(DFB ) 有 58.0 dB 敳獲? 慥档攠慮汢湩 ? 楤晦牥湥 ? 慭整楲污瀠潲散獳湩 ?敲楧敭 s | Asrul Izam AZMI Ian LEUNG Xiaobao CHEN Shaoling ZHOU Qing ZHU Kan GAO Paul CHILDS Gangding PENG | 2011 | Photonic Sensors2011，1，3： | 3 |
| 2 | Spectrophotometer with enhanced sensitivity for uric acid detection显示文摘A spectrophotometer with an LED as the light source for uric acid detection is proposed in this work. The mechanism of uric acid detection is based on energy absorbed by sodium urate, which is a chemical product of uric acid and sodium hydroxide solution. For the performance validation, comparison between the spectrophotometer with an LED and halogen lamp is carried out. Measurement results suggest that the spectrophotometer system with LED light has better sensitivity than that with halogen light. At a 460 nm wavelength,the sensitivity for the spectrophotometer with an LED is 0.0046 dL/mg, which is 73% higher than that with halogen light that records 0.0012 dL/mg. This enhanced sensitivity is attributed to the higher luminous efficacy of the LED light beam. As a result, a larger amount of flux interacts with the sample, leading to the sensitivity enhancement. The spectrophotometer with an LED is also applied for the detection of uric acid in a real human urine sample. Based on the experimental data at a 460 nm wavelength, the method manages to achieve the sensitivity of 0.0016 dL/mg, accuracy of 96.01%, limit of detection of 4.79 mg/dL, and limit of quantification of 14.52 mg/dL. These findings show that the use of LED as the input light source is promising for the spectrophotometer. | Nurfatihah Che Abd Rashid Nor Hafizah Ngajikin Asrul Izam Azmi Rashidah Arsat Suhaila Isaak Noran Azizan Cholan Nur Ellina Azmi | 2019 | Chinese Optics Letters2019，17，8： | 1 |
| 3 | Sensitivity Enhancement in Composite Cavity Fiber Laser Hydrophone 显示文摘 | Asrul Izam Azmi Deep Sen Gang-Ding Peng | 2010 | Journal of Lightwave Technology2010，28，12： | 1 |
| 4 | Optical Path Length,Temperature,and Wavelength Effects Simulation on Ozone Gas Absorption Cross Sections towards Green Communications显示文摘Ozone is a green house gas. Ozone absorption cross sections have been reported with discrepancies and inconsistencies. In this paper, simultaneous effects of the optical path length and temperature variations on ozone gas absorption cross sections are investigated at different wavelengths. HITRAN 2012, the latest available line list on spectralcalc.com simulator, is used in this study to simulate ozone gas absorption cross sections in relation to the simultaneous effects of the optical path length and temperature at the wavelengths of 603 nm and 575 nm. Results obtained for gas cells with the optical path length from 10 cm to 120 cm show that the decrease in temperatures from 313 K to 103 K results in the increase in ozone gas absorption cross sections. At wavelengths of 603 nm and 575 nm, the percentage increase of ozone gas absorption cross sections is 1.22% and 0.71%, respectively. Results obtained in this study show that in the visible spectrum, at constant pressure, ozone gas absorption cross sections are dependent on the temperature and wavelength but do not depend on the optical path length. Analysis in this work addresses discrepancies in ozone gas absorption cross sections in relation to the temperature in the visible spectrum; thus, the results can be applied to get optimal configuration of high accuracy ozone gas sensors. | Michael David mohd haniff ibrahim Sevia Mahdaliza Idrus Nor Hafizah Ngajikin Asrul Izam Azmi Tay Ching En Marcus | 2016 | Journal of Electronic Science and Technology2016，14，3： | 0 |
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