Q63 99053499生物组织光学折射率=Refractive index in biologicaltissue optics[刊,中]/李晖,谢树森(福建师范大学激光所.福建,福州(350007)),陆祖康(浙江大学现代光学仪器国家重点实验室.浙江,杭州(310027))//激光与红外.-1999,29(1)....Q63 99053499生物组织光学折射率=Refractive index in biologicaltissue optics[刊,中]/李晖,谢树森(福建师范大学激光所.福建,福州(350007)),陆祖康(浙江大学现代光学仪器国家重点实验室.浙江,杭州(310027))//激光与红外.-1999,29(1).-51-55就生物组织折射率的意义进行了论述,引入一个表观的具有平均意义的参量作为生物组织折射率用于描述光在不同组织分界面上的行为以及光在组织内传播的时间特性,提出了测量生物组织折射率的前提条件和几种新的测量方法并评价了这些方法的优劣性。接着,给出了典型组织折射率在不同环境条件下的测量结果,同时进行了分析和讨论。图2参13(李瑞琴)展开更多
To achieve high quality factor and high-sensitivity refractive index sensor,a slot micro-ring resonator(MRR)based on asymmetric Fabry-Perot(FP)cavity was proposed.The structure consisted of a pair of elliptical holes ...To achieve high quality factor and high-sensitivity refractive index sensor,a slot micro-ring resonator(MRR)based on asymmetric Fabry-Perot(FP)cavity was proposed.The structure consisted of a pair of elliptical holes to form an FP cavity and a microring resonator.The two different optical modes generated by the micro-ring resonator were destructively interfered to form a Fano line shape,which improved the system sensitivity while obtaining a higher quality factor and extinction ratio.The transmission principle of the structure was analyzed by the transfer matrix method.The transmission spectrum and mode field distribution of the proposed structure were simulated by the finite difference time domain(FDTD)method,and the key structural parameters affecting the Fano line shape in the device were optimized.The simulation results show that the quality factor of the device reached 22037.1,and the extinction ratio was 23.9 dB.By analyzing the refractive index sensing characteristics,the sensitivity of the structure was 354 nm·RIU−1,and the detection limit of the sensitivity was 2×10−4 RIU.Thus,the proposed compact asymmetric FP cavity slot micro-ring resonator has obvious advantages in sensing applications owing to its excellent performance.展开更多
文摘Q63 99053499生物组织光学折射率=Refractive index in biologicaltissue optics[刊,中]/李晖,谢树森(福建师范大学激光所.福建,福州(350007)),陆祖康(浙江大学现代光学仪器国家重点实验室.浙江,杭州(310027))//激光与红外.-1999,29(1).-51-55就生物组织折射率的意义进行了论述,引入一个表观的具有平均意义的参量作为生物组织折射率用于描述光在不同组织分界面上的行为以及光在组织内传播的时间特性,提出了测量生物组织折射率的前提条件和几种新的测量方法并评价了这些方法的优劣性。接着,给出了典型组织折射率在不同环境条件下的测量结果,同时进行了分析和讨论。图2参13(李瑞琴)
基金supported by Natural Science Foundation of Gansu Province(No.22JR5RA320).
文摘To achieve high quality factor and high-sensitivity refractive index sensor,a slot micro-ring resonator(MRR)based on asymmetric Fabry-Perot(FP)cavity was proposed.The structure consisted of a pair of elliptical holes to form an FP cavity and a microring resonator.The two different optical modes generated by the micro-ring resonator were destructively interfered to form a Fano line shape,which improved the system sensitivity while obtaining a higher quality factor and extinction ratio.The transmission principle of the structure was analyzed by the transfer matrix method.The transmission spectrum and mode field distribution of the proposed structure were simulated by the finite difference time domain(FDTD)method,and the key structural parameters affecting the Fano line shape in the device were optimized.The simulation results show that the quality factor of the device reached 22037.1,and the extinction ratio was 23.9 dB.By analyzing the refractive index sensing characteristics,the sensitivity of the structure was 354 nm·RIU−1,and the detection limit of the sensitivity was 2×10−4 RIU.Thus,the proposed compact asymmetric FP cavity slot micro-ring resonator has obvious advantages in sensing applications owing to its excellent performance.
