Article
|
Open Access
Featured
-
-
Article
| Open Access
Waveguide-integrated twisted bilayer graphene photodetectors
Silicon-integrated graphene photodetectors exhibit promising bandwidths at telecom wavelengths, but their responsivity is usually limited. Here, the authors report the wafer-scale fabrication of waveguide-integrated detectors based on twisted bilayer graphene, showing responsivities up to 0.65 A/W and 3-dB bandwidths >65 GHz.
- Qinci Wu
- , Jun Qian
- & Hailin Peng
-
Article
| Open Access
Memory-electroluminescence for multiple action-potentials combination in bio-inspired afferent nerves
In this work, a nanoscale light-emitting diode with memory-electroluminescence is demonstrated, which is used for mimicking the generation of multiple action-potentials and their combinations in bio-inspired afferent nerves.
- Kun Wang
- , Yitao Liao
- & Tae Whan Kim
-
Article
| Open Access
Transparent integrated pyroelectric-photovoltaic structure for photo-thermo hybrid power generation
The full potential of photoelectric devices can possibly be maximized through pyroelectricity for power generation beyond thermodynamic limit. Here, authors report photovoltaic heterostructure device with pyroelectric absorber, achieving 2.5 times more output power due to long-range electric field.
- Malkeshkumar Patel
- , Hyeong-Ho Park
- & Joondong Kim
-
Article
| Open Access
Frequency-selective perovskite photodetector for anti-interference optical communications
Signal transmission without the interference from ambient light is prerequisite for optical communications. Min et al. design an asymmetric 2D-3D-2D perovskite photodetector with frequency-selective photoresponse for real-time high fidelity optical communications under strong light interference.
- Liangliang Min
- , Haoxuan Sun
- & Liang Li
-
Article
| Open Access
Cross-layer transmission realized by light-emitting memristor for constructing ultra-deep neural network with transfer learning ability
Parallel information transmission components and hardware strategies are still lacking in neural networks. Here, the authors propose a strategy to use light emitting memristors with negative ultraviolet photoconductivity and intrinsic parallelism to construct direct information cross-layer modules.
- Zhenjia Chen
- , Zhenyuan Lin
- & Huipeng Chen
-
Article
| Open Access
Single-pixel p-graded-n junction spectrometers
The miniaturization of spectrometers to a submillimeter-scale footprint opens opportunities for applications in hyperspectral imaging and lab-on-a-chip systems. Here, the authors report a high-performance single-pixel photodetector spectrometer based on the III-V semiconductor p-graded-n junction, featuring a voltage-tunable optical response.
- Jingyi Wang
- , Beibei Pan
- & Baile Chen
-
Article
| Open Access
Agile THz-range spectral multiplication of frequency combs using a multi-wavelength laser
Using a multi-wavelength laser, the authors demonstrate that is possible to replicate an optical frequency comb from one wavelength to the next, with a frequency shift up to 1.3 THz, combined with a nanosecond switching time between wavelengths.
- Shahab Abdollahi
- , Mathieu Ladouce
- & Martin Virte
-
Article
| Open Access
Synergistic-potential engineering enables high-efficiency graphene photodetectors for near- to mid-infrared light
The integration of 2D materials with metasurfaces can enhance their quantum efficiency, but the approach is usually limited to a narrow spectral band. Here, the authors report the realization of gate-tunable graphene photodetectors combined with all-dielectric periodic slits, leading to enhanced photoresponse in the short-to-long-wave infrared.
- Hao Jiang
- , Jintao Fu
- & Cheng-Wei Qiu
-
Article
| Open Access
Heavy-to-light electron transition enabling real-time spectra detection of charged particles by a biocompatible semiconductor
New detector materials are crucial for radiation beam monitoring in dosimeters and X-ray imaging. The authors report a solution-grown biocompatible organic single crystalline semiconductor for real-time spectral detection of charged particles with single-particle sensitivity, X-ray detection and imaging.
- Dou Zhao
- , Ruiling Gao
- & Yadong Xu
-
Article
| Open Access
A 5 × 200 Gbps microring modulator silicon chip empowered by two-segment Z-shape junctions
The authors showcase a five-channel silicon microring modulator array with a total data rate in the terabit range. Each microring is equipped with two separate Z-shape junctions to overcome the bandwidth and modulation efficiency trade-off, providing a pathway for future 200 Gb/s/lane silicon optical interconnects.
- Yuan Yuan
- , Yiwei Peng
- & Raymond G. Beausoleil
-
Article
| Open Access
High crosstalk suppression in InGaAs/InP single-photon avalanche diode arrays by carrier extraction structure
Opticalelectrical crosstalk, rather than optical crosstalk, is the primary issue in InGaAs/InP single-photon avalanche diode arrays. Here, Tang et al. propose a carrier-extraction structures to replace the trenching method, effectively reducing crosstalk and maintaining device reliability.
- Yongsheng Tang
- , Rui Wang
- & Meng Zhao
-
Article
| Open Access
High-speed and energy-efficient non-volatile silicon photonic memory based on heterogeneously integrated memresonator
Photonic integrated circuits have grown as potential hardware for neural networks and quantum computing, yet the tuning speed and large power consumption limited the application. Here, authors introduce the memresonator, a memristor heterogeneously integrated with a microring resonator, as a non-volatile silicon photonic phase shifter to address these limitations.
- Bassem Tossoun
- , Di Liang
- & Raymond G. Beausoleil
-
Article
| Open Access
Direct and integrating sampling in terahertz receivers from wafer-scalable InAs nanowires
Authors report on nanofacet engineering of wafer‐scalable InAs nanowires enabling the operation of THz photodetectors in direct or integrating sampling mode, with performance comparable to commercial InP technology.
- Kun Peng
- , Nicholas Paul Morgan
- & Michael B. Johnston
-
Article
| Open Access
Bidirectional light-emitting diode as a visible light source driven by alternating current
The bidirectional light-emitting diode emits visible light regardless of the direction of current flow, leading to AC applications. This is made possible by the use of two oppositely oriented tunnel junctions that surround the active region.
- Mikołaj Żak
- , Grzegorz Muziol
- & Czesław Skierbiszewski
-
Article
| Open Access
Superconducting nonlinear transport in optically driven high-temperature K3C60
The authors report ultrafast transport measurements on the photo-excited superconducting state in K3C60. They observe characteristic superconducting nonlinear current-voltage responses.
- E. Wang
- , J. D. Adelinia
- & A. Cavalleri
-
Article
| Open Access
Circular polarization-resolved ultraviolet photonic artificial synapse based on chiral perovskite
Circularly polarized light adds a unique dimension to optical information processing and communication. Here, the authors present a development of a photonic artificial synapse device using chiral perovskite hybrid materials and carbon nanotubes. The heterostructure exhibits efficient synaptic and neuromorphic behaviors, enabling accurate recognition of circularly polarized images.
- Qi Liu
- , Qi Wei
- & Mingjie Li
-
Article
| Open Access
Double boron–oxygen-fused polycyclic aromatic hydrocarbons: skeletal editing and applications as organic optoelectronic materials
The development of chemically diverse boron-oxygen-fused polycyclic aromatic hydrocarbons has been limited by their synthetic complexity. Here, authors report a one-pot strategy for their facile synthesis and demonstrate their potential as ultralong afterglow and host materials for deep-blue OLEDs.
- Guijie Li
- , Kewei Xu
- & Yuan-Bin She
-
Article
| Open Access
Polarization structured light 3D depth image sensor for scenes with reflective surfaces
Highly reflective surfaces are notorious in 3D sensing because they can cause errors in depth perception. Here, the authors devise a polarization structured light 3D sensor for this problem, in which high-contrast-grating VCSELs are used. Experiments are reported to demonstrate the sensor can be used to see and see through the highly reflective surfaces.
- Xuanlun Huang
- , Chenyang Wu
- & Connie J. Chang-Hasnain
-
Article
| Open Access
Room-temperature high-speed electrical modulation of excitonic distribution in a monolayer semiconductor
2D excitonic devices hold potential for on-chip optoelectronic applications. Here, the authors report high-speed in-plane electrical modulations of the excitonic distribution in monolayer semiconductor/Au electrode junctions, showing switching times as low as 5 ns at room temperature.
- Guangpeng Zhu
- , Lan Zhang
- & Qihua Xiong
-
Article
| Open Access
Sub-THz wireless transmission based on graphene-integrated optoelectronic mixer
Here, the authors report the realization of a sub-THz wireless data link based on a graphene-integrated optoelectronic mixer with a >96 GHz bandwidth, −44 dB upconversion efficiency and <0.1 mm2 footprint, providing an alternative approach for the realization of millimeter-wave transmitters.
- Alberto Montanaro
- , Giulia Piccinini
- & Marco Romagnoli
-
Article
| Open Access
Differential phase-diversity electrooptic modulator for cancellation of fiber dispersion and laser noise
In this work, the authors showcase four-phase electrooptic modulators (FEOMs) implemented on thin-film lithium niobate. This innovation effectively addresses challenges related to dispersion and semiconductor laser noise limitations, offering a promising solution for integrated photonic applications.
- Ehsan Ordouie
- , Tianwei Jiang
- & Bahram Jalali
-
Article
| Open Access
Non-volatile optoelectronic memory based on a photosensitive dielectric
Designing high efficient optoelectronic memory remains a challenge. Here, the authors report a novel optoelectronic memory device based on a photosensitive dielectric that is an insulator in dark and a semiconductor under irradiation with multilevel storage ability, low energy consumption and good compatibility.
- Rui Zhu
- , Huili Liang
- & Zengxia Mei
-
Article
| Open Access
In-sensor computing using a MoS2 photodetector with programmable spectral responsivity
Here, the authors report the design and realization of an in-sensor computing optoelectronic device with programmable spectral responsivity based on an ensemble of cavity-enhanced MoS2 photodetectors. The device can perform direct analog processing during the light detection process, without the need to computationally reconstruct the entire optical spectra.
- Dohyun Kwak
- , Dmitry K. Polyushkin
- & Thomas Mueller
-
Article
| Open Access
A heterogeneously integrated lithium niobate-on-silicon nitride photonic platform
Lithium niobate plays an important role in integrated photonics, but its widespread application requires a reliable solution. Here, the authors present a wafer-scale approach to LNOI integration via wafer bonding to silicon nitride PICs.
- Mikhail Churaev
- , Rui Ning Wang
- & Tobias J. Kippenberg
-
Article
| Open Access
In-memory photonic dot-product engine with electrically programmable weight banks
Hybrid photonic–electronic systems are essential for high-throughput neuromorphic computing. Here, the authors report an in-memory photonic–electronic dot-product engine with decoupled electronic programming of the phase-change memory cells and parallel photonic computation with high-bit operation, low energy consumption, and high accuracy.
- Wen Zhou
- , Bowei Dong
- & Harish Bhaskaran
-
Article
| Open Access
A sensory memory processing system with multi-wavelength synaptic-polychromatic light emission for multi-modal information recognition
Multimodal cognitive computing task is an important research content in the field of AI. Here, the authors propose an efficient sensory memory processing system, which can process sensory information and generate synapse-like and multiwavelength light-emitting output for efficient multimodal information recognition.
- Liuting Shan
- , Qizhen Chen
- & Huipeng Chen
-
Article
| Open Access
Microcantilever-integrated photonic circuits for broadband laser beam scanning
This work presents ultracompact and low-power laser beam scanners using microcantilevers embedded with nanophotonic circuits. These chip-scale devices are made in a semiconductor foundry and project visible light patterns in one or two dimensions.
- Saeed Sharif Azadeh
- , Jason C. C. Mak
- & Joyce K. S. Poon
-
Article
| Open Access
Optical neural network via loose neuron array and functional learning
Here the authors have realized a programmable incoherent optical neural network that delivers light-speed, high-bandwidth, and power-efficient neural network inference via processing parallel visible light signals in the free space.
- Yuchi Huo
- , Hujun Bao
- & Sung-Eui Yoon
-
Review Article
| Open Access
How to characterize figures of merit of two-dimensional photodetectors
The lack of a standardized approach for the characterization of the performance of 2D photodetectors represents an important obstacle towards their industrialization. Here, the authors propose practical guidelines to characterize their figures of merit and analyse common situations where their performance can be misestimated.
- Fang Wang
- , Tao Zhang
- & Weida Hu
-
Article
| Open Access
A flexible organic mechanoluminophore device
It has been challenging to achieve discernible mechanoluminophore devices under ambient light. Here, authors integrate top-emitting organic light-emitting device and piezoelectric generator on thin polymer substrate for the realization of flexible devices under an ambient illuminance of 3000 lux.
- Qingyang Zhang
- , Mengxin Xu
- & Cunjiang Yu
-
Article
| Open Access
Realizing nearly-zero dark current and ultrahigh signal-to-noise ratio perovskite X-ray detector and image array by dark-current-shunting strategy
The high dark current of perovskite photodetectors hinders the full potential of perovskites as active material for X-ray detectors. Here, Jin et al. provide a strategy to reduce the dark current to zero and massively enhance the signal-to-noise ratio of perovskite X-ray detectors and photodetectors.
- Peng Jin
- , Yingjie Tang
- & Yang (Michael) Yang
-
Article
| Open Access
kHz-precision wavemeter based on reconfigurable microsoliton
Microcombs are vulnerable to the environmental perturbations. Here, the authors propose a universal mechanism to fully control the microcombs. Based this reconfigurable microsoliton, a wavemeter with a precision of kHz is demonstrated.
- Rui Niu
- , Ming Li
- & Chun-Hua Dong
-
Article
| Open Access
High-order tensor flow processing using integrated photonic circuits
Convolutional operation is a very efficient way to handle tensor analytics, but it consumes a large quantity of additional memory. Here, the authors demonstrate an integrated photonic tensor processor which directly handles high-order tensors without tensor-matrix transformation.
- Shaofu Xu
- , Jing Wang
- & Weiwen Zou
-
Article
| Open Access
Ultrahigh-responsivity waveguide-coupled optical power monitor for Si photonic circuits operating at near-infrared wavelengths
The authors presented an ultrahigh-responsivity phototransistor with a thin InGaAs film on a silicon waveguide. The effective gating by the silicon waveguide enables 106 A/W responsivity, promising for optical power monitors in Si photonic circuits.
- Takaya Ochiai
- , Tomohiro Akazawa
- & Mitsuru Takenaka
-
Article
| Open Access
Direct retrieval of Zernike-based pupil functions using integrated diffractive deep neural networks
Retrieving the pupil phase of a optical beam path is a central problem for imaging systems across scales. The authors use Diffractive Neural Networks to directly extract pupil phase information with a single, compact optoelectronic device.
- Elena Goi
- , Steffen Schoenhardt
- & Min Gu
-
Article
| Open Access
Strongly enhanced THz generation enabled by a graphene hot-carrier fast lane
THz imaging and spectroscopy always request even more efficient components. Here the authors, thanks to a modified photoconductive switch that includes a graphene layer, demonstrate a high-speed photoconductive switch without sacrificing the generated power.
- Dehui Zhang
- , Zhen Xu
- & Zhaohui Zhong
-
Article
| Open Access
Monolithically integrated, broadband, high-efficiency silicon nitride-on-silicon waveguide photodetectors in a visible-light integrated photonics platform
Efficient and broadband visible-light photodetectors will bring great advantages in applications such as biosensing and quantum information. Here the authors develop a photodetector with high quantum efficiency across broad wavelength range suitable for monolithic integration in photonics circuits.
- Yiding Lin
- , Zheng Yong
- & Joyce K. S. Poon
-
Article
| Open Access
Nonlinear germanium-silicon photodiode for activation and monitoring in photonic neuromorphic networks
Large-scale silicon-based integrated artificial neural networks lack of silicon-integrated optical neurons. Here, Yu et al, report a self-monitored all-optical neural network enabled by nonlinear germanium-silicon photodiodes, making the photonic neural network more versatile and compact.
- Yang Shi
- , Junyu Ren
- & Xinliang Zhang
-
Article
| Open Access
Noise-injected analog Ising machines enable ultrafast statistical sampling and machine learning
Ising machines are accelerators for computing difficult optimization problems. In this work, Böhm et al. demonstrate a method that extends their use to perform statistical sampling and machine learning orders-of-magnitudes faster than digital computers.
- Fabian Böhm
- , Diego Alonso-Urquijo
- & Guy Van der Sande
-
Article
| Open Access
Actuating compact wearable augmented reality devices by multifunctional artificial muscle
Artificial muscle actuators enabled by responsive functional materials like shape memory alloys are promising candidates for compact e-wearable devices. Here, authors demonstrate augmented reality glasses and two-way communication haptic gloves capable of image depth control and immersive tactile response.
- Dongjin Kim
- , Baekgyeom Kim
- & Je-Sung Koh
-
Article
| Open Access
On-chip bacterial foraging training in silicon photonic circuits for projection-enabled nonlinear classification
On-chip training of machine learning algorithms is challenging for photonic devices. Here, the authors construct nonlinear mapping functions in silicon photonic circuits, and experimentally demonstrate on-chip bacterial foraging training for projection-based classification.
- Guangwei Cong
- , Noritsugu Yamamoto
- & Koji Yamada
-
Article
| Open Access
Ultra-sensitive polarization-resolved black phosphorus homojunction photodetector defined by ferroelectric domains
Integrated polarization-sensitive photodetectors are important for sensing applications and optical communication. Here, the authors report the realization of 2D black phosphorus homojunction photodetectors defined by ferroelectric substrates, showing polarization ratios up to 288 and high responsivity in the near-infrared.
- Shuaiqin Wu
- , Yan Chen
- & Jianlu Wang
-
Article
| Open Access
Gigahertz free-space electro-optic modulators based on Mie resonances
Active photonics in free space is important in computing, imaging and sensing. Here, hybrid silicon-organic nanoscale structures change the intensity of a free-space light beam by applied microwave signals at gigahertz speeds with a high efficiency.
- Ileana-Cristina Benea-Chelmus
- , Sydney Mason
- & Federico Capasso
-
Article
| Open Access
Wireless implantable optical probe for continuous monitoring of oxygen saturation in flaps and organ grafts
Although continuous monitoring of tissue oxygenation is critically important after tissue/organ graft procedures, current technologies have key limitations. Here, the authors develop a miniaturized, minimally invasive, self-anchoring optical probe and demonstrate continuous monitoring of oxygenation in porcine flap and organ models.
- Hexia Guo
- , Wubin Bai
- & John A. Rogers
-
Article
| Open Access
The speed limit of optoelectronics
Though strong-field induced carrier excitation allows for exploring ultrafast electronic properties of a material, characterizing post-excitation dynamics is a challenge. Here, the authors report linear petahertz photoconductive sampling in a solid and use it to real-time probe conduction band electron motion.
- M. Ossiander
- , K. Golyari
- & M. Schultze
-
Article
| Open Access
Perovskite multifunctional logic gates via bipolar photoresponse of single photodetector
The authors present a novel all-in-one optoelectronic logic gates based on the bipolar spectral photo-response characteristics of self-powered perovskite photodetector. Five representative logic gates are demonstrated with only a single detector via photocurrent polarity control.
- Woochul Kim
- , Hyeonghun Kim
- & Yusin Pak
-
Article
| Open Access
Revisiting silk: a lens-free optical physical unclonable function
Although conventional optical physical unclonable functions (PUFs) are attractive for security applications, existing optical PUFs have inherent complexity. Here, the authors report a low-cost, lens-free and compact optical PUF that uses silk microfiber-based stochastic diffraction.
- Min Seok Kim
- , Gil Ju Lee
- & Young Min Song
-
Article
| Open Access
Coherent phase transfer for real-world twin-field quantum key distribution
Exploiting technologies derived from the optical clocks community, the authors demonstrate a setup for twin-field QKD which extends the coherence times by three orders of magnitude, overcoming the main challenge towards real-world implementation.
- Cecilia Clivati
- , Alice Meda
- & Davide Calonico
-
Article
| Open Access
Ultrafast optical circuit switching for data centers using integrated soliton microcombs
Optical technologies could enable fast and power-efficient networks for data centers. Here, the authors report Si3N4 microcomb based ultrafast photonic switching to provide enhanced performance for data center applications.
- Arslan Sajid Raja
- , Sophie Lange
- & Hitesh Ballani
Nonvolatile optical phase shift in ferroelectric hafnium zirconium oxide