Article
Chemistry, Physical
Mikhail A. Kanygin, Behraad Bahreyni
Summary: The article demonstrates a method of using an optical signal to modulate internal mechanical strain in regular p-n junctions to generate displacements in microstructures, showing a significant increase in displacement compared to noise-excited systems. The actuators can be controlled remotely by varying light intensity without a local energy supply, and the method can be implemented in mainstream manufacturing processes.
Review
Nanoscience & Nanotechnology
Nan Xu, Ze-Di Cheng, Jin-Dao Tang, Xiao-Min Lv, Tong Li, Meng-Lin Guo, You Wang, Hai-Zhi Song, Qiang Zhou, Guang-Wei Deng
Summary: NOEMS, as a new platform for studying electronic and mechanical freedoms in nanophotonics, offers exciting opportunities to manipulate information carriers using optical, electrical, and mechanical degrees of freedom. The technology has the potential to implement high-speed, low-power consumption switches and various quantum information processing functions through on-chip integration.
Article
Optics
Tongyao Zhang, Hanwen Wang, Xiuxin Xia, Ning Yan, Xuanzhe Sha, Jinqiang Huang, Kenji Watanabe, Takashi Taniguchi, Mengjian Zhu, Lei Wang, Jiantou Gao, Xilong Liang, Chengbing Qin, Liantuan Xiao, Dongming Sun, Jing Zhang, Zheng Han, Xiaoxi Li
Summary: The nano-opto-electro-mechanical systems (NOEMS) are promising hybrid solid devices that can manipulate the interplay between optical, electrical, and mechanical modes. The use of van der Waals (vdW) heterostructures in studying NOEMS is limited but has great potential.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Ali Vajdi, Mojtaba Sadeghi, Zahra Adelpour
Summary: This work proposes and simulates five different nano-structures based on graphene-plasmonic combinations. The absorption peak's value is improved by changing structural parameters and chemical potentials. The final proposed structure is considered as an opto-fluidic sensor for detection of specific substances' refractive index with a reasonable sensitivity factor.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Review
Optics
Jin-hui Chen, Yi-feng Xiong, Fei Xu, Yan-qing Lu
Summary: The integration of graphene and related 2D materials in optical fibers has led to significant advances in all-fiber photonics and optoelectronics, enhancing light-matter interactions and enabling manipulation of light beams. This integration opens up new possibilities for integrated multifunctional all-fiber optoelectronic systems.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Microscopy
Hongru Zhang, Guofang Fan, Shi Li, Xiaoyu Cai, Jiasi Wei, Gaoshan Jing, Yuan Li, Zhiping Zhang
Summary: An integrated opto-mechanical cantilever sensor with a rib waveguide is presented in this paper. The device utilizes a rib cantilever to enhance the interface coupling efficiency and achieve single-mode operation in the transverse direction without reducing the width of the optical waveguide cantilever. Compared to conventional structures, the system sensitivity is increased by about 21%.
JOURNAL OF MICROSCOPY
(2022)
Article
Engineering, Electrical & Electronic
Peiji Sun, Xuan She, Junjie Yao, Kan Chen, Ran Bi, Lei Wang, Xiaowu Shu
Summary: This paper presents a monolithic integrated micro-opto-electromechanical system (MOEMS) accelerometer based on the Michelson interferometer structure, with high precision, large measurement range, and small size, which may pave the way for applications in civil, industrial, and military fields.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Nahid Osanloo, Vahid Ahmadi, Mohammad Naser-Moghaddasi, Elham Darabi
Summary: In this paper, opto-plasmonic sensors are designed by arranging gold nanospheres and using DNA-gold nanoparticle (GNP) core-shells and DNA rods as junctions. The structures show high sensitivity in distinguishing materials based on refractive indices, and can be utilized for spectroscopy and optical imaging on a real scale. Different topologies of the proposed structures are analyzed, with the core-shell heptamer structure showing the best sensitivity and DNA rods as junctions between GNPs showing the best figure of merit value.
Article
Chemistry, Multidisciplinary
Mohit Kumar, Seokwon Lim, Jisu Kim, Hyungtak Seo
Summary: This research develops light-intensity selective superlinear photodetectors with ultralow dark current, which is crucial for high-performing near-sensor vision processing. By using Mott material (vanadium dioxide) and silicon-based integrated infrared photodetectors, giant superlinear photoresponse and ultralow dark current are achieved. Furthermore, the research demonstrates the feasibility of intensity-selective near-sensor processing and exhibits night vision pattern reorganization even with noisy inputs. This research paves the way for high-performance photodetectors with potential uses in night vision, pattern recognition, and neuromorphic processing.
ADVANCED MATERIALS
(2023)
Article
Optics
Ting Qing, Shupeng Li, Xiaohu Tang, Ping Li, Xufeng Chen, Lihan Wang, Yijie Fang, Meihui Cao, Lugang Wu, Shilong Pan
Summary: A comprehensive vector analyzer based on optical asymmetrical double-sideband (ADSB) modulation is proposed in this study, which can effectively characterize E-O, O-E, and O-O devices in photonic applications with high resolution and wide scanning range.
Article
Materials Science, Multidisciplinary
Komal Kampasi, Ian Ladner, Jenny Zhou, Alicia Calonico Soto, Jose Hernandez, Susant Patra, Razi-ul Haque
Summary: The increasing interest in optical implants is driven by the need for spatial precision, real-time monitoring, and reduced invasiveness. This study presents unique microfabrication and packaging techniques to build high-precision and spatially complex implantable optoelectronics. The developed methods led to the creation of LLNL's first ultra-compact, lightweight, and minimally invasive thin-film optoelectronic neural implant for chronic studies of brain activities.
Article
Engineering, Environmental
Tong Liu, Anran Li, Wei Zhou, Chaojie Lyu
Summary: The study presents a hierarchical electrode design with oxygen vacancies, combining nickel foam, copper micro-pillars, and cobalt oxide, providing large surface area and channels for efficient proton and electron transfer. This structure enhances the oxygen catalytic performance and exhibits excellent OER performance at high current densities.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Xiaoyu Gao, Wenru Fan, Wei Zhu, Gao Jiuwei, Pengfang Zhang, Chen Wang, Xuewen Wang, Hesheng Xia, Zhenhua Wang, Wei Huang
Summary: A new strategy of dynamic integrated moiety is developed to construct covalent and noncovalent cross-linked polyurethane elastomers, achieving excellent overall mechanical properties of strength, toughness, stretchability, and healing efficiency.
CHEMISTRY OF MATERIALS
(2022)
Article
Computer Science, Information Systems
Shanchi Wu, Chen Gong, Chengjie Zuo, Shangbin Li, Junyu Zhang, Zhongbin Dai, Kai Yang, Ming Zhao, Rui Ni, Zhengyuan Xu, Jinkang Zhu
Summary: The study presents a novel RF receiving architecture based on MEMS and optical coherent detection module, converting electrical signal into mechanical vibration and detecting it with an optical module. Numerical evaluation shows that the signal detection sensitivity can reach -116.6 dBm at 5 MHz bandwidth when considering main noise sources in the system.
IEEE INTERNET OF THINGS JOURNAL
(2021)
Article
Optics
Wansha Wen, Ping Ruan, Tao Lv, Baopeng LI
Summary: This paper proposes a scheme of support forces passing through the prism center of gravity and optimizes the position parameters of the supports using a multi-island genetic algorithm. The results show that this scheme effectively reduces the optical surface deformation of the wedge prism.
Article
Physics, Applied
Kazuki Nomoto, Huili Grace Xing, Debdeep Jena, YongJin Cho
Summary: High-quality N-polar GaN p-n diodes were successfully fabricated on single-crystal N-polar GaN bulk substrates using plasma-assisted molecular beam epitaxy. These diodes exhibit high on/off current ratio and ideality factor at room temperature, and their performance remains relatively stable at elevated temperatures.
APPLIED PHYSICS EXPRESS
(2022)
Article
Optics
Matt Markowitz, Michele Cotrufo, You Zhou, Karl Stensvad, Craig Schardt, Adam Overvig, Andrea Alu
Summary: Tailored resonant waveguide gratings (RWG) embedded in a glass-like matrix are explored as angularly tolerant tri-band reflection filters under oblique excitation. Through inverse design, 1D grating structures are optimized to support multi-frequency narrow-band resonances in an otherwise transparent background, ideally suited for augmented reality applications.
Article
Multidisciplinary Sciences
Alexey Tiranov, Vasiliki Angelopoulou, Bjorn Schrinski, Cornelis Jacobus van Diepen, Oliver August Dall Alba Sandberg, Ying Wang, Leonardo Midolo, Sven Scholz, Andreas Dirk Wieck, Arne Ludwig, Anders Sondberg Sorensen, Peter Lodahl
Summary: Photon emission is fundamental for light-matter interaction and photonic quantum science. This study demonstrates distant dipole-dipole radiative coupling in solid-state optical quantum emitters embedded in a nanophotonic waveguide. The collective response and emission dynamics can be controlled by proper excitation techniques. This work is a foundational step towards multiemitter applications for scalable quantum-information processing.
Article
Nanoscience & Nanotechnology
Nikita Nefedkin, Michele Cotrufo, Andrea Alu
Summary: Nonreciprocity originating from classical interactions among nonlinear scatterers is explored in this work, offering a promising tool for quantum information processing and quantum computing. It is shown that large nonreciprocal responses can be achieved in nonlinear systems by controlling the position and transition frequencies of the atoms, without requiring a nonreciprocal environment. The connection between this effect and the asymmetric population of a slowly decaying dark state is demonstrated.
Article
Physics, Applied
Jashan Singhal, Eungkyun Kim, Austin Hickman, Reet Chaudhuri, Yongjin Cho, Huili Grace Xing, Debdeep Jena
Summary: We conducted a study on the compositional dependence of electrical characteristics in AlxGa1-xN quantum well channel-based AlN/AlGaN/AlN high electron mobility transistors (HEMTs), with x values of 0.25, 0.44, and 0.58. The use of selectively regrown n-type GaN Ohmic contacts resulted in increased contact resistance with higher Al content in the channel. The DC HEMT device characteristics showed a progressive reduction in maximum drain current densities and a simultaneous decrease in threshold voltage with increasing x values.
APPLIED PHYSICS LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Adam Christopher Overvig, Michele Cotrufo, Matthew Markowitz, You Zhou, Bing Hao, Karl Stensvad, Craig Schardt, Andrea Alu
Summary: Energy-momentum (dispersion) relations are essential for photonic device design, but our limited understanding hampers key technologies. By utilizing a zone-folding technique, we engineer nonlocal metasurfaces that exhibit zero first-order resonant frequency dispersion, allowing unprecedented control over the energy-momentum properties of nonlocal states.
Article
Physics, Applied
Hady Moussa, Michele Cotrufo, Andrea Alu
Summary: This study explores the design and implementation of a passive reconfigurable switch based on nonlinear Fano resonators asymmetrically coupled to two ports. It is demonstrated that by suitably exploiting time-reversal symmetry, this type of device can provide controllable transmission routing, leading to a power-and/or phase-controlled transmission switch with minimal power consumption. A proof-of-principle experimental demonstration shows that the transmission of a high-power signal can be switched by controlling a much weaker signal's power or phase. This work presents an alternative way to develop low-energy power-controlled reconfigurable switches for various applications.
PHYSICAL REVIEW APPLIED
(2023)
Article
Quantum Science & Technology
Ming Lai Chan, Alexey Tiranov, Martin Hayhurst Appel, Ying Wang, Leonardo Midolo, Sven Scholz, Andreas D. Wieck, Arne Ludwig, Anders Sondberg Sorensen, Peter Lodahl
Summary: We have demonstrated high-fidelity on-chip entanglement between an incoming photon and a stationary quantum-dot hole spin qubit using self-assembled quantum dots integrated into nanostructures. The entanglement is induced by sequential scattering of the time-bin encoded photon interleaved with active spin control within a microsecond, two orders of magnitude faster than other solid-state platforms. The entanglement fidelity is immune to the spectral wandering of the emitter when conditioned on the detection of a reflected photon. These results represent a major step towards realizing a quantum node capable of interchanging information with flying photons and on-chip quantum logic for quantum networks and repeaters.
NPJ QUANTUM INFORMATION
(2023)
Article
Multidisciplinary Sciences
Patrik I. Sund, Emma Lomonte, Stefano Paesani, Ying Wang, Jacques Carolan, Nikolai Bart, Andreas D. Wieck, Arne Ludwig, Leonardo Midolo, Wolfram H. P. Pernice, Peter Lodahl, Francesco Lenzini
Summary: Scalable photonic quantum computing requires low-loss high-speed reconfigurable circuits and near-deterministic resource state generators. In this study, we developed an integrated photonic platform based on thin-film lithium niobate and combined it with deterministic solid-state single-photon sources based on quantum dots in nanophotonic waveguides. The generated photons were processed using low-loss circuits programmable at speeds of several gigahertz, enabling various key photonic quantum information processing functionalities. This approach shows promise for scalable photonic quantum technologies by merging integrated photonics with solid-state deterministic photon sources.
Article
Optics
Anne van Klinken, Don M. J. van Elst, Chenhui Li, Maurangelo Petruzzella, Kaylee D. D. Hakkel, Fang Ou, Francesco Pagliano, Rene van Veldhoven, Andrea Fiore
Summary: Spectral sensing is a rapidly developing field that focuses on fast and non-invasive chemical analysis of materials in various fields. The study presented a near-infrared spectral sensor with high responsivity, narrow linewidth, and low noise. The sensor consists of 16 resonant-cavity-enhanced photodetectors, each showing a unique spectral response with narrow peaks. The research also proposed a simple and scalable fabrication approach for the detector arrays, resulting in improved device characteristics.
Article
Nanoscience & Nanotechnology
L. Picelli, P. J. van Veldhoven, E. Verhagen, A. Fiore
Summary: By controlling the current and measuring the voltage via fibre, a hybrid electronic-photonic sensor located on the tip of a fibre can be used as an electrical sensor with optical readout. This sensor combines the sensitivity and flexibility of electronic sensors with the advantages of optical readout, demonstrating the possibility of reading the current-voltage characteristics of the electro-optic diode through the fibre. It allows fibre-optic sensing to utilize various electrical sensing modalities for different measurements.
NATURE NANOTECHNOLOGY
(2023)
Review
Nanoscience & Nanotechnology
Aodong Li, Heng Wei, Michele Cotrufo, Weijin Chen, Sander Mann, Xiang Ni, Bingcong Xu, Jianfeng Chen, Jian Wang, Shanhui Fan, Cheng-Wei Qiu, Andrea Alu, Lin Chen
Summary: This Review discusses the latest theoretical progress related to exceptional points (EPs) in non-Hermitian physics and their implications for emerging technologies in nanophotonics. The authors highlight fundamental advances in various nanoscale systems and the theoretical progress in EPs, including higher-order EPs, bulk Fermi arcs, and Weyl exceptional rings. They also explore EP-associated emerging technologies and discuss the constraints and limitations of EP applications.
NATURE NANOTECHNOLOGY
(2023)
Article
Physics, Multidisciplinary
Xiao-Liu Chu, Camille Papon, Nikolai Bart, Andreas D. Wieck, Arne Ludwig, Leonardo Midolo, Nir Rotenberg, Peter Lodahl
Summary: Efficient light-matter interaction at the single-photon level is achieved by coupling two semiconductor quantum dot emitters to a photonic-crystal waveguide and individually controlling them using a local electric Stark field. Resonant transmission and fluorescence spectra confirm the coupling of the two emitters to the waveguide. The single-photon stream from one quantum dot is utilized for spectroscopy on the second quantum dot positioned 16 μm away, and power-dependent resonant transmission measurements indicate coherent coupling between the emitters. This work presents a scalable route to achieve multiemitter collective coupling for solid-state deterministic photon emitters.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Analytical
Mildred S. Cano-Velazquez, Arthur L. Hendriks, Luca Picelli, Rene P. J. van Veldhoven, Andrea Fiore
Summary: In this study, we demonstrate fiber optic sensors with temperature compensation for accurate measurement of ethanol concentration in aqueous solutions. The sensors consist of two photonic crystal fiber-tip sensors, one for measuring ethanol concentration and the other for independent measurement of temperature. By combining the information from the two sensors, the effect of temperature on concentration measurement can be compensated for, resulting in more accurate estimations of ethanol concentration.
Article
Physics, Applied
C. Papon, Y. Wang, R. Uppu, S. Scholz, A. D. Wieck, A. Ludwig, P. Lodahl, L. Midolo
Summary: We achieve on-chip single-photon generation in multiple spatial modes by resonantly exciting two quantum dots in a photonic integrated circuit. The emission wavelength of the two quantum dots is tuned to be the same using isolated p-i-n junctions, and they are excited by a resonant pump laser via dual-mode waveguides. Under continuous-wave excitation of narrow-linewidth quantum dots, we demonstrate a two-photon quantum interference visibility of (79 ± 2)%. Our work solves a significant challenge in quantum photonics by realizing how to scale up deterministic single-photon sources.
PHYSICAL REVIEW APPLIED
(2023)
