APL Photonics最新文献_第9页

Extended short-wave infrared high-speed all-GeSn PIN photodetectors on silicon 硅基扩展短波红外高速全硒化镓 PIN 光电探测器

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-05-09 DOI: 10.1063/5.0197018

M. R. M. Atalla, C. Lemieux-Leduc, S. Assali, S. Koelling, P. Daoust, O. Moutanabbir

{"title":"Extended short-wave infrared high-speed all-GeSn PIN photodetectors on silicon","authors":"M. R. M. Atalla, C. Lemieux-Leduc, S. Assali, S. Koelling, P. Daoust, O. Moutanabbir","doi":"10.1063/5.0197018","DOIUrl":"https://doi.org/10.1063/5.0197018","url":null,"abstract":"There is an increasing need for silicon-compatible high-bandwidth extended-short wave infrared (e-SWIR) photodetectors (PDs) to implement cost-effective and scalable optoelectronic devices. These systems are quintessential to address several technological bottlenecks in detection and ranging, surveillance, ultrafast spectroscopy, and imaging. In fact, current e-SWIR high-bandwidth PDs are predominantly made of III–V compound semiconductors and thus are costly and suffer a limited integration on silicon besides a low responsivity at wavelengths exceeding 2.3 μm. To circumvent these challenges, Ge1−xSnx semiconductors have been proposed as building blocks for silicon-integrated high-speed e-SWIR devices. Herein, this study demonstrates vertical all-GeSn PIN PDs consisting of p-Ge0.92Sn0.08/i-Ge0.91Sn0.09/n-Ge0.89Sn0.11 and p-Ge0.91Sn0.09/i-Ge0.88Sn0.12/n-Ge0.87Sn0.13 heterostructures grown on silicon following a step-graded temperature-controlled epitaxy protocol. The performance of these PDs was investigated as a function of the device diameter in the 10–30 μm range. The developed PD devices yield a high bandwidth of 12.4 GHz at a bias of 5 V for a device diameter of 10 μm. Moreover, these devices show a high responsivity of 0.24 A/W, a low noise, and a 2.8 μm cutoff wavelength, thus covering the whole e-SWIR range.","PeriodicalId":8198,"journal":{"name":"APL Photonics","volume":"34 1","pages":""},"PeriodicalIF":5.6,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140939418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

k-space holographic multiplexing for synthetic aperture diffraction tomography 用于合成孔径衍射层析成像的 k 空间全息复用技术

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-05-07 DOI: 10.1063/5.0203117

Zhengzhong Huang, Liangcai Cao

引用次数: 0

Control of non-Hermitian skin effect by staggered synthetic gauge fields 用交错合成规规场控制非赫米提皮肤效应

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-05-07 DOI: 10.1063/5.0196844

Huiyan Tang, Ziteng Wang, Liqin Tang, Daohong Song, Zhigang Chen, Hrvoje Buljan

引用次数: 0

Exploiting graded triangular gratings for optimal nano-focusing: A novel approach to enhance SERS efficiency 利用分级三角光栅实现最佳纳米聚焦：提高 SERS 效率的新方法

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-04-26 DOI: 10.1063/5.0195141

Ali Zeineddine, Moein Shayegannia, Nazir P. Kherani, Joel Y. Y. Loh

{"title":"Exploiting graded triangular gratings for optimal nano-focusing: A novel approach to enhance SERS efficiency","authors":"Ali Zeineddine, Moein Shayegannia, Nazir P. Kherani, Joel Y. Y. Loh","doi":"10.1063/5.0195141","DOIUrl":"https://doi.org/10.1063/5.0195141","url":null,"abstract":"Plasmonic graded nano-gratings enable rainbow trapping of multiple resonant modes over a wide wavelength spectrum, useful for multi-channel Surface Enhanced Raman Spectroscopy (SERS) of molecular species. However, rectangular nano-gratings have limitations in achieving efficient rainbow trapping and localizing a wide spectrum of plasmonic modes due to their stepwise geometry, which induces high dissipation of surface plasmon polaritons into the substrate. An alternative platform of graded triangular nano-gratings enables increased localization and more efficient adiabatic transformation between neighboring grooves. Varying groove angles, depths, and periods in the tapered geometry allow for smooth adjustment of the surface plasmon polariton propagation constant, reducing losses and maximizing nano-focusing inside the groove tips. To overcome the limitation of low aspect ratio in wet-etching silicon, we employed a multi-step process of reactive ion etching of a SiO2 barrier layer to generate aperture width, followed by anisotropic wet-etching. The resulting graded triangular nano-gratings showed excellent SERS enhancement along three laser wavelength excitations. The enhancement factors of 638 and 785 nm wavelengths are 8.5 × 109 and 9 × 108, respectively, for the detection of 1 µM Rhodamine 6G. In addition, graded triangular nano-gratings show similar enhancement factors for other species, specifically the lipid DPEE-PEG, at the 532 nm laser excitation wavelength with an excellent SERS enhancement factor of 1.5 × 109. Owing to the ability of the graded triangular gratings to elicit pronounced SERS responses across three distinct laser excitations, they unequivocally qualify as “rainbow trapping” structures. Wider apertures, lower ohmic losses, and the ability to tune the groove angle beyond conventional etching methods bode well for graded triangular gratings as a superior platform for miniature sensors.","PeriodicalId":8198,"journal":{"name":"APL Photonics","volume":"65 1","pages":""},"PeriodicalIF":5.6,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140800219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Tailoring intrinsic chiroptical responses via twisted bilayer α-MoO3 separated by a VO2 film 通过由 VO2 薄膜隔开的扭曲双层 α-MoO3 来定制本征千扰响应

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-04-26 DOI: 10.1063/5.0197081

Junjian Lu, Tian Sang, Chui Pian, Siyuan Ouyang, Ze Jing

引用次数: 0

Feedback enhanced phonon lasing of a microwave frequency resonator 微波频率谐振器的反馈增强型声子激光

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-04-19 DOI: 10.1063/5.0172554

Peyman Parsa, Prasoon Kumar Shandilya, David P. Lake, Matthew E. Mitchell, Paul E. Barclay

引用次数: 0

Thermal flux manipulation on the silicon photonic chip to suppress the thermal crosstalk 在硅光子芯片上操纵热通量以抑制热串扰

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-04-08 DOI: 10.1063/5.0193387

Nannan Ning, Qiang Zhang, Qikai Huang, Yuehai Wang, Bihu Lv, Kun Yin, Jianyi Yang, Hui Yu

{"title":"Thermal flux manipulation on the silicon photonic chip to suppress the thermal crosstalk","authors":"Nannan Ning, Qiang Zhang, Qikai Huang, Yuehai Wang, Bihu Lv, Kun Yin, Jianyi Yang, Hui Yu","doi":"10.1063/5.0193387","DOIUrl":"https://doi.org/10.1063/5.0193387","url":null,"abstract":"The integration density of silicon photonic integrated circuit (PIC) is ultimately constrained by various crosstalk mechanisms on the chip. Among them, the most prominent limiting factor is the thermal crosstalk due to the wide use of the thermo-optic effect. High-density silicon PICs strongly demand an advanced structure with better thermal crosstalk suppression ability than the traditional air isolation trench. Inspired by the thermal-metamaterial based on the scattering-cancellation method, we demonstrate a closed heat shield (CHS) structure on a silicon PIC chip, which can manipulate the thermal flux to bypass the temperature-sensitive silicon photonics components. The on-chip CHS structure is a bilayer cylindrical shell fabricated by the standard silicon photonics processing flow. Its outer and inner shell layers are formed by a 6-μm-wide interconnection metal and 4-μm-wide air trench, respectively. Plenty of temperature-sensitive micro-ring resonators inside the CHS are used to probe the temperature profile. The measurement results show that the CHS can reduce the local temperatures by 50%/44%/36% at the locations 29/41/83 μm away from the external heater. In contrast, the conventional air trench of the same dimension reduces the local temperatures by 32%/28%/21% at the same positions. In addition, the response time of the thermal field inside the CHS is around one-half of that in the conventional air trench. Furthermore, the simulation result indicates that if the outer shell of the CHS can contact with the silicon substrate by utilizing the through-silicon-via structure, the thermal crosstalk suppression ability can be improved significantly.","PeriodicalId":8198,"journal":{"name":"APL Photonics","volume":"73 1","pages":""},"PeriodicalIF":5.6,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140569166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Prime number factorization with light beams carrying orbital angular momentum 利用携带轨道角动量的光束进行质数因式分解

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-04-05 DOI: 10.1063/5.0192223

Xiaofei Li, Xin Liu, Quanying Wu, Jun Zeng, Yangjian Cai, Sergey A. Ponomarenko, Chunhao Liang

引用次数: 0

Temporal and spectral signatures of the interaction between ultrashort laser pulses and Bloch surface waves 超短激光脉冲与布洛赫表面波相互作用的时间和光谱特征

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-04-05 DOI: 10.1063/5.0183704

Isaac Doughan, Atsu L. Asilevi, Atri Halder, Tian-Long Guo, Erika Mogni, Michele Celebrano, Marco Finazzi, Giovanni Pellegrini, Paolo Biagioni, Emiliano Descrovi, Matthieu Roussey, Jari Turunen

引用次数: 0

Direct imprint of optical skyrmions in azopolymers as photoinduced relief structures 在叠氮聚合物中直接压印光天翁作为光诱导浮雕结构

IF 5.6 1区物理与天体物理

APL Photonics Pub Date : 2024-04-04 DOI: 10.1063/5.0192239

Rihito Tamura, Praveen Kumar, A. Srinivasa Rao, Kazuki Tsuda, Fanny Getzlaff, Katsuhiko Miyamoto, Natalia M. Litchinitser, Takashige Omatsu

{"title":"Direct imprint of optical skyrmions in azopolymers as photoinduced relief structures","authors":"Rihito Tamura, Praveen Kumar, A. Srinivasa Rao, Kazuki Tsuda, Fanny Getzlaff, Katsuhiko Miyamoto, Natalia M. Litchinitser, Takashige Omatsu","doi":"10.1063/5.0192239","DOIUrl":"https://doi.org/10.1063/5.0192239","url":null,"abstract":"Skyrmions, topologically stable configurations of a three-component vector field with sophisticated textures, have been considered in many contexts, including atomic physics, Bose–Einstein condensates, liquid crystals, and magnetic materials. Although optical counterparts of skyrmions have extensively been studied theoretically and recently demonstrated in the laboratory experiments, their experimental mapping is challenging due to the fine, three-dimensional, and complicated structure of their polarization distributions. Here, we propose and demonstrate a straightforward mapping of the polarization textures of optical Néel-, Bloch-, and anti-skyrmions based on the radiation pressure and direct imprinting of the skyrmion textures on azopolymers. These results not only elucidate the exotic interaction that occurs between topologically protected quasiparticles of light and matter but also provide a simple approach for generation and characterization of optical skyrmions, based on a dual-path polarization shaping configuration with a single spatial light modulator, and their measurements based on the radiation pressure.","PeriodicalId":8198,"journal":{"name":"APL Photonics","volume":"37 1","pages":""},"PeriodicalIF":5.6,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140568951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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