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| 1 | Ultra-high-resolution detection of Pb2+ ions using a black phosphorus functionalized microfiber coil resonator显示文摘A black phosphorus(BP) functionalized optical fiber sensor based on a microfiber coil resonator(MCR) for Pb^2+ ion detection in an aquatic environment is presented and experimentally demonstrated. The MCR-BP sensor is manufactured by winding a tapered microfiber on a hollow rod composed of a low-refractive-index polycarbonate(PC) resin with the BP deposited on the internal wall of the rod. Based on the propagation properties of the MCR, the chemical interaction between the Pb^2+ ions and the BP alters the refractive index of the ambient environment and thus results in a detectable shift in the transmission spectrum. The resonance wavelength moves towards longer wavelengths with an increasing concentration of Pb^2+ ions, and the sensor has an ultra-high detection resolution of 0.0285 ppb(parts per billion). The temperature dependence is 106.95 pm/°C due to the strong thermo-optic and thermal-expansion effect of the low-refractive-index PC resin. In addition, the sensor shows good stability over a period of 15 days. The local pH also influences the sensor, with the resonance wavelength shift increasing as pH approaches a value of 7 but then decreasing as the pH value increases further due to the effect of the BP layer by H^+ and OH-ions. The sensor shows the potential for high-resolution detection of Pb^2+ ions in a liquid environment with the particular advantages of having a simple structure, ease of fabrication,low cost, low loss, and simple interrogation. | YU YIN SHI LI SHUNBIN WANG SHIJIE JIA JING REN GERALD FARRELL ELFED LEWIS PENGFEI WANG | 2019 | Photonics Research2019，7，6： | 2 |
| 2 | An all-fiber temper- ature sensors based on a macro-bendsinglemode fiber loop 显示文摘 | RAJAN G SEMENOVA Yuliya FARREL Gerald | 2008 | Electronics Letters2008，44，19： | 1 |
| 3 | 160-Gb/s NRZ-DQPSK optical transmission system employing QC-LDPC code显示文摘A quasi-cyclic low-density parity check(QC-LDPC) code is constructed by an improved stability of the shortest cycle algorithm for 160-Gb/s non-return zero differential quadrature phase shift keying(NRZDQPSK) optical transmission system with the fiber-based optical parametric amplifier(FOPA).The QCLDPC code with stability of the shortest cycle reduces the bit error ratio(BER) to 10-14 and restrains the error floor e?ectively. | 李莎 余重秀 康喆 Gerald Farrell 吴强 | 2014 | Chinese Optics Letters2014，12，1： | 1 |
| 4 | All-fiber polarimetric electric field sensing using liquid crystal infiltrated photonic crystal fibers显示文摘 | Sunish Mathews Gerald Farrell Yuliya Semenova | 2011 | Sensors and Actuators A2011，167，1： | 1 |
| 5 | A fiber bend based humidity sensor with a wide linear range and fast measurement speed 显示文摘 | Jinesh Mathew Yuliya Semenova Gerald Farrell | 2012 | Sensors and Actuators A Physical2012，174，： | 1 |
| 6 | Study of transmis- sion response of edge filters employed in wavelength measure- ments显示文摘 | WANG Qian Farrell Gerald Freir Thomas | 2005 | Applied Optics2005，44，36： | 1 |
| 7 | All-fi-ber polarimetric electric tield sensing using liquid crystalinfiltrated photonic crystal fibers显示文摘 | Sunish Mathews Gerald Farrell Yuliya Semenova | 2011 | Sensors and Actua-tors A2011，167，1： | 1 |
| 8 | Cu离子交换过程对制备玻璃平面光波导特性的影响显示文摘用Cu离子交换技术,制备了soda-lime玻璃平面光波导。通过棱镜耦合技术测量了波导的有效折射率,用反WKB方法拟合得到了平面波导的折射率分布。研究发现,离子交换时间和温度2个可控的制备参数对制备的玻璃平面波导特性有较大影响,随着离子交换时间和温度的增加,波导的模式数和波导深度并非随之单调增加,波导模式数随着离子交换时间的增加先增加而后减小,而适当的离子交换时间可以使制备的波导具有最大的模式数和波导深度,且在该条件下增加离子交换温度可以提高Cu离子交换波导的蓝-绿发光强度,宽带发光中心波长在520 nm附近,发光强度取决于样品中Cu+的浓度以及Cu2+的影响。 | 何新 张键 赵晓薇 鲁庆 郑杰 王鹏飞 Farrell Gerald | 2010 | 光电子.激光2010，21，6： | 0 |
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