Optical Review最新文献_第10页

Compression of femtosecond-pulse waveforms in spectral intensity filters 压缩光谱强度滤波器中的飞秒脉冲波形

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-02-26 DOI: 10.1007/s10043-024-00866-8

Koyo Watanabe, Hisanari Takahashi, Kyohhei Shigematsu, Naoya Matsumoto, Takashi Inoue

{"title":"Compression of femtosecond-pulse waveforms in spectral intensity filters","authors":"Koyo Watanabe, Hisanari Takahashi, Kyohhei Shigematsu, Naoya Matsumoto, Takashi Inoue","doi":"10.1007/s10043-024-00866-8","DOIUrl":"https://doi.org/10.1007/s10043-024-00866-8","url":null,"abstract":"Femtosecond pulsed lasers are widely used in applied technologies, such as laser processing, nonlinear optical microscopy, and time-of-flight measurement, wherein narrowing the pulse duration is particularly important for improving the processing efficiency and signal-to-noise ratio of measurement systems. This paper proposes a method for shortening temporal pulse waveforms using spectral intensity filtering. Symmetrical spectral filtering was specifically applied at the central wavelength of the femtosecond pulsed laser spectrum. To investigate the pulse-narrowing effect, we numerically simulated the pulse duration as a function of the filtering width and cut-off wavelength position. The results of these simulations showed that the pulse duration decreased as the filter wavelength approached the central wavelength of the light. Furthermore, increasing the filter width reduced the pulse duration. Additionally, we implemented a spatial light modulator-based pulse-shaping system to realize a spectral intensity filter. We experimentally demonstrated that the duration of a telecom-band pulse was reduced by 9.8% when using a spectral intensity filter with a width of 1 nm.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"119 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139967453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Monitoring of the formation of biofilm inside a glass tube using light scattering patterns 利用光散射模式监测玻璃管内生物膜的形成

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-02-21 DOI: 10.1007/s10043-024-00864-w

Naomichi Yokoi, Tomonori Yuasa, Ilpo Niskanen, Kenichi Hibino, Hideki Funamizu, Yoshihisa Aizu

引用次数: 0

Surface enhanced substrate simulation optimized coupled PLS model for quantitative detection of acetone in transformer oil 用于定量检测变压器油中丙酮的表面增强基底模拟优化耦合 PLS 模型

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-02-16 DOI: 10.1007/s10043-023-00862-4

Yihua Qian, Qing Wang, Siwei Pan, Zhuang Yang, Dingkun Yang

{"title":"Surface enhanced substrate simulation optimized coupled PLS model for quantitative detection of acetone in transformer oil","authors":"Yihua Qian, Qing Wang, Siwei Pan, Zhuang Yang, Dingkun Yang","doi":"10.1007/s10043-023-00862-4","DOIUrl":"https://doi.org/10.1007/s10043-023-00862-4","url":null,"abstract":"Acetone is a reliable index to evaluate the aging state of oil paper insulation. It is of great significance to study a fast, highly sensitive and accurate method of detecting acetone in oil to ensure the safe and stable operation of oil-immersed transformers. In this paper, a method based on surface enhanced Raman spectroscopy for the detection of acetone in oil is investigated. Based on the mechanism of surface-enhanced Raman spectroscopy (SERS), a simulation model of surface-enhanced substrate was constructed using COMSOL software, and it was determined that the enhancement effect was better when silver nanowires/zinc oxide nanorods (Ag/ZnO) composite structure was selected. Ag/ZnO substrates were prepared by solvothermal method and experimentally tuned and characterized to obtain SERS substrates with high enhancement properties. The substrate coupled partial least square (PLS) model was used to establish a method for the detection of acetone in insulating oils, and its limit of quantification for acetone was 0.003 mg/g, which meets the requirements for engineering testing.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"152 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139750235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

RF classification-based nonlinear distortion mitigation for 120 Gbit/s PAM8-modulated optical interconnects in IM/DD 基于射频分类的非线性失真缓解技术，用于 IM/DD 中的 120 Gbit/s PAM8 调制光互联

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-02-08 DOI: 10.1007/s10043-023-00861-5

Yilin Zhang, Xiangye Zeng, Jingyi Wang, Yang Wang, Jianfei Liu, Jia Lu, Jie Ma, Zhao Shen, Baoshuo Fan

{"title":"RF classification-based nonlinear distortion mitigation for 120 Gbit/s PAM8-modulated optical interconnects in IM/DD","authors":"Yilin Zhang, Xiangye Zeng, Jingyi Wang, Yang Wang, Jianfei Liu, Jia Lu, Jie Ma, Zhao Shen, Baoshuo Fan","doi":"10.1007/s10043-023-00861-5","DOIUrl":"https://doi.org/10.1007/s10043-023-00861-5","url":null,"abstract":"Intensity modulation/direct detection (IM/DD) optical interconnect systems are susceptible to waveform distortion caused by complex nonlinearities. To reduce the effect of waveform distortion on signal transmission accuracy, in this paper, a random forest (RF) equalization algorithm based on decision tree (DT) integration is proposed for cost-sensitive IM/DD systems, which has the characteristics of nonlinear classification and regression. The performance of the RF equalizer is verified by simulation experiments on a 120 Gbps 8-level pulse amplitude modulation (PAM8) transmission system using an electro-absorption-modulated laser (EML). Simulation studies show that whether it is a back-to-back (B2B) transmission system or a 10 km optical fiber transmission system, the RF equalization scheme can achieve much better bit error rate (BER) performance than the traditional equalization scheme. In addition, in both transmission cases, the RF equalization scheme enables efficient classification of signals and is much less simpler than the artificial neural network (ANN) equalization scheme.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"6 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139715333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Imaging phase objects through diffusers based on lensless digital holography 基于无透镜数字全息技术，通过扩散器成像相位物体

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-01-31 DOI: 10.1007/s10043-023-00863-3

引用次数: 0

Structural design of random lasers with specified emission bands 具有特定发射波段的随机激光器的结构设计

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-01-27 DOI: 10.1007/s10043-023-00858-0

Takashi Okamoto, Ryo Ohshige, Haruto Nakajima

引用次数: 0

Hypercholesterolemia diagnosis by a biosensor based on photonic crystal PANDA structure 利用基于光子晶体 PANDA 结构的生物传感器诊断高胆固醇血症

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-01-22 DOI: 10.1007/s10043-023-00859-z

Esmat Rafiee, Elham Rafiei

{"title":"Hypercholesterolemia diagnosis by a biosensor based on photonic crystal PANDA structure","authors":"Esmat Rafiee, Elham Rafiei","doi":"10.1007/s10043-023-00859-z","DOIUrl":"https://doi.org/10.1007/s10043-023-00859-z","url":null,"abstract":"A biosensor based on 2-D photonic crystals is presented and considered. The proposed structure is made of 24 × 23 Si rods in the air background. The presented biosensor would be considered for detection of Cholesterol concentrations in blood samples, which can aid physicians in diagnosis of Hypercholesterolemia and heart diseases in early stages. To facilitate the designation and fabrication processes and overcome the gain and nonlinearity problems, only linear rods would be utilized. The presented structure operates based on the interference and scattering effects of Si defect rods positioned in the structure (black rods operate as the confining sensing media and dark green rods function as the coupling rods). The PANDA (the proposed structure indicates a PANDA face)-shaped waveguides can filter the resonant wavelengths. For studying the functionality of the proposed biosensor, photonic band gap (by the plane wave expansion (PWE) method) and field distribution (by the finite-difference-time-domain (FDTD) method) spectra should be considered. The appropriate dimension of the proposed biosensor (111.78 μm2) makes it a considerable option for utilization in bio-optical integrated circuits. Finally, for the Cholesterol concentrations in blood samples, the remarkable sensitivity (595.74 nm/RIU “RIU stands for refractive index unit”), quality factor (35–46), detection limit (6.1e−3–6.7e−3) RIU and figure of merit (14.89–16.3) RIU−1 were achieved.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"70 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139510864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and optimization of a runway resonator sensor based on BP-NSGA II for anaemic disease 设计和优化基于 BP-NSGA II 的跑道谐振器传感器，用于治疗贫血症

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-01-17 DOI: 10.1007/s10043-023-00860-6

Zhang Luoxuan, Li Pinghua, Liu Jinghao, Zhuang Xuye

{"title":"Design and optimization of a runway resonator sensor based on BP-NSGA II for anaemic disease","authors":"Zhang Luoxuan, Li Pinghua, Liu Jinghao, Zhuang Xuye","doi":"10.1007/s10043-023-00860-6","DOIUrl":"https://doi.org/10.1007/s10043-023-00860-6","url":null,"abstract":"Optical resonators are particularly suitable for anaemia state detection due to small sample size, real-time detection and low power consumption. However, the quality factor and sensitivity of resonant cavity sensors are mutually constrained, so the single objective optimization algorithms proposed so far can only achieve a single optimization of sensitivity or quality factor, which limits chip performance. This article presents a multi-objective optimization design of the runway ring resonant cavity sensor based on the BP-NSGA II algorithm, which has achieved good performance improvement. The simultaneous incorporation of quality factor and sensitivity provides access to key structural design parameters to overcome the limitations of sensitivity and quality factor constraints on each other, thereby improving sensor performance. The results show that the optimized structure has a sensitivity of 439 nm/RIU, a quality factor of 938, a relative error of 1.37% and 3.9% for the sensitivity and quality factor, respectively, a linearity of 0.00004636% for the sensitivity, and a training time of 3 min. The method has the advantages of small errors and short learning time. A new optimization method is provided for the design of the resonant cavity of a runway ring.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"31 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139489736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optical force on a Rayleigh particle generated by photonic jet 光子射流对瑞利粒子产生的光学力

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-01-17 DOI: 10.1007/s10043-023-00857-1

Bojian Wei, Run Chen, Qiang Xu, Renxian Li, Shuhong Gong, Shaohui Yan

引用次数: 0

A high-precision measuring system for atmospheric visibility based on a multi-reflection cell 基于多反射池的大气能见度高精度测量系统

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-01-10 DOI: 10.1007/s10043-023-00849-1

Meng Li, Suyue Liu, Yuzhao Ma, Ning Fu

引用次数: 0