Explanipedia

Near-unity spontaneous emission factor InP surface-emitting lasers based on quasi-bound states in the continuum Open

Wei Wen Wong, Xiaoying Huang, Olivier Lee Cheong Lem, C. Jagadish, Hark Hoe Tan · 2025

Surface-emitting lasers featuring optical bound states in the continuum (BICs) have recently emerged as a promising alternative to vertical cavity surface-emitting lasers. However, structural damage caused by top-down fabrication processes…

Design and Characterization of Low‐Threshold InP Nanowire Photonic Crystal Surface‐Emitting Lasers Open

Navoda Jayawardana, Mark R. Larson, C. W. Tu, Naiyin Wang, Wei Wen Wong , et al. · 2025

This study examines the lasing performance of optically pumped wurtzite‐phase InP nanowire (NW) photonic crystal surface‐emitting lasers (PCSELs) with the goal of optimizing the cavity design for low‐threshold lasing. By varying the photon…

Nonlinearity symmetry breaking for generating tunable quantum entanglement in semiconductor metasurfaces Open

Jinyong Ma, Tongmiao Fan, Tuomas Haggrén, Laura Valencia Molina, Matthew Parry , et al. · 2025

Tunable biphoton quantum entanglement generated from nonlinear flat optics is highly desirable for cutting-edge quantum technologies, yet its tunability is substantially constrained by the symmetry of material nonlinear tensors. Here, we o…

The influence of subwavelength geometry on extracting the electrical properties of semiconductors by terahertz spectroscopy Open

Ford M. Wagner, Tuomas Haggrén, Jasmin-Clara Bürger, Terng Junn Keat, Kun Peng , et al. · 2025

Terahertz (THz) spectroscopy is a non-contact technique well-suited for probing the ultrafast electrical conductivity of semiconductor nanostructures, where conventional methods are often impractical. However, geometric resonances in these…

Abnormal carrier thermalization dynamics at type-II interface in InP nanomembranes Open

Zhicheng Su, Yan Wei, Naiyin Wang, Yu‐Long Wang, Dali Sun , et al. · 2025

Type-II InP wurtzite–zincblende (WZ–ZB) nanostructures are promising in chip-scale photonic interconnects due to their exceptional electron mobility and optoelectronic properties. However, their rise time characteristics, crucial for devic…

InAs nanowire transistor pairs as NMOS inverters Open

Ibtisam Hammad Abbasi, Tom Albrow‐Owen, Faris Abualnaja, Ralf Mouthaan, Peter J. Christopher , et al. · 2025

III–V semiconductor nanowires have the potential to play a key role in compact and flexible electronic devices for low-power applications. Here, we integrate pairs of InAs nanowires in an inverter configuration for NMOS logic circuit appli…

Modulation of Nanowire Emitter Arrays Using Micro-LED Technology Open

Zhongyi Xia, Dimitars Jevtics, Benoit Guilhabert, Jonathan J. D. McKendry, Qian Gao , et al. · 2025

A scalable excitation platform for nanophotonic emitters using individually addressable micro-LED-on-CMOS arrays is presented. Heterogeneous integration by transfer printing of semiconductor nanowires was used for the deterministic assembl…

Physics-Aware Inverse Design for Nanowire Single-Photon Avalanche Detectors via Deep Learning Open

Boyang Zhang, Zhe Li, Zhongju Wang, Yang Yu, Hark Hoe Tan , et al. · 2025

Single-photon avalanche detectors (SPADs) have enabled various applications in emerging photonic quantum information technologies in recent years. However, despite many efforts to improve SPAD's performance, the design of SPADs remained la…

Reversible Carrier Modulation in InP Nanolasers by Ionic Liquid Gating with Low Energy Consumption (Adv. Sci. 8/2025) Open

Chia‐Hung Wu, Chi‐Wen Chen, Hung‐Jung Shen, Hsiang‐Yu Chuang, Hark Hoe Tan , et al. · 2025

Nanolasers Controlled by Ionic Liquids This cover illustration depicts a significant advancement in nanophotonics by utilizing ionic liquid (IL) as a dielectric layer to modulate carrier concentrations in indium phosphide (InP) nanolasers …

Modulation of nanowire emitter arrays using micro-LED technology Open

Zhongyi Xia, Dimitars Jevtics, Benoit Guilhabert, Jonathan J. D. McKendry, Qian Gao , et al. · 2025

A scalable excitation platform for nanophotonic emitters using individually addressable micro-LED-on-CMOS arrays is demonstrated for the first time. Heterogeneous integration by transfer-printing of semiconductor nanowires was used for the…

Epitaxially-grown mode-tunable InP micro-ring lasers Open

Wei Wen Wong, Zhicheng Su, Naiyin Wang, C. Jagadish, Hark Hoe Tan · 2025

In the near future, technological advances driven by the Fourth Industrial Revolution will boost the demand for integrated, power-efficient miniature lasers, which are important for optical data communications and advanced sensing applicat…

Reversible Carrier Modulation in InP Nanolasers by Ionic Liquid Gating with Low Energy Consumption Open

Chia‐Hung Wu, Chi‐Wen Chen, Hung‐Jung Shen, Hsiang‐Yu Chuang, Hark Hoe Tan , et al. · 2024

Nanoscale light sources are demanded vigorously due to rapid development in photonic integrated circuits (PICs). III‐V semiconductor nanowire (NW) lasers have manifested themselves as indispensable components in this field, associated with…

Resonance-Amplified Terahertz Near-Field Spectroscopy of a Single Nanowire Open

Sarah Norman, Greg Chu, Kun Peng, James Seddon, Lucy L. Hale , et al. · 2024

Nanoscale material systems are central to next-generation optoelectronic and quantum technologies, yet their development remains hindered by limited characterization tools, particularly at terahertz (THz) frequencies. Far-field THz spectro…

Data‐Driven Discovery for Robust Optimization of Semiconductor Nanowire Lasers Open

Stephen Church, Francesco Vitale, Aswani Gopakumar Saraswathy Vilasam, Nikita Gagrani, Yunyan Zhang , et al. · 2024

Active wavelength‐scale optoelectronic components are widely used in photonic integrated circuitry, however coherent sources of light – namely optical lasers – remain the most challenging component to integrate. Semiconductor nanowire lase…

Generation of tunable quantum entanglement via nonlinearity symmetry breaking in semiconductor metasurfaces Open

Jinyong Ma, Tongmiao Fan, Tuomas Haggrén, Laura Valencia Molina, Matthew Parry , et al. · 2024

Tunable biphoton quantum entanglement generated from nonlinear processes is highly desirable for cutting-edge quantum technologies, yet its tunability is substantially constrained by the symmetry of material nonlinear tensors. Here, we ove…

Telecom-band multiwavelength vertical emitting quantum well nanowire laser arrays Open

Xutao Zhang, Fanlu Zhang, Ruixuan Yi, Naiyin Wang, Zhicheng Su , et al. · 2024

Visualization of incrementally learned projection trajectories for longitudinal data Open

Tamasha Malepathirana, Damith Senanayake, Vini Gautam, Martin Engel, Rachelle Balez , et al. · 2024

Nanowire Array Breath Acetone Sensor for Diabetes Monitoring Open

Shiyu Wei, Zhe Li, Krishnan Murugappan, Ziyuan Li, Mykhaylo Lysevych , et al. · 2024

Diabetic ketoacidosis (DKA) is a life‐threatening acute complication of diabetes characterized by the accumulation of ketone bodies in the blood. Breath acetone, a ketone, directly correlates with blood ketones. Therefore, monitoring breat…

21.2% GaAs Solar Cell Using Bilayer Electron Selective Contact Open

Vidur Raj, Tuomas Haggrén, Yahuitl Osorio Mayon, C. Jagadish, Hark Hoe Tan · 2024

GaAs remains one of the crucial materials for solar cell applications as it boasts the world's highest efficiency single‐junction solar cells. However, their high cost limits their widespread terrestrial applications. Traditional GaAs sola…

An efficient modeling workflow for high-performance nanowire single-photon avalanche detector Open

Zhe Li, Hark Hoe Tan, C. Jagadish, Lan Fu · 2024

Single-photon detector (SPD), an essential building block of the quantum communication system, plays a fundamental role in developing next-generation quantum technologies. In this work, we propose an efficient modeling workflow of nanowire…

Ion implantation induced interdiffusion in quantum wells for optoelectronic device integration Open

Lili Fu, Hark Hoe Tan, M.I. Cohen, C. Jagadish, Lap Van Dao , et al. · 2024

Ion implantation induced intermixing of GaAs/AlGaAs and InGaAs/AGaAs quantum wells was studied using low temperature photoluminescence. Large energy shifts were observed with proton implantation and subsequent rapid thermal annealing. Ener…

Complete research data for: Data-driven Discovery for Robust Optimization of Semiconductor Nanowire Lasers Open

Stephen Church, Francesco Vitale, Aswani Gopakumar, Nikita Gagrani, Yunyan Zhang , et al. · 2024

Full dataset supporting the publication "Data-driven Discovery for Robust Optimization of Semiconductor Nanowire Lasers".This includes experimental results from 55,516 individual nanowire lasers using a multitude of experimental techniques…

Three-dimensional electronic spectroscopy of excitons in asymmetric double quantum wells Open

Christopher R. Hall, Lap Van Dao, K. Nugent, H. M. Quiney, Hark Hoe Tan , et al. · 2024

We utilize a three-dimensional (3D) visible spectroscopy to reveal and explore coherent coupling between excitons localized to GaAs quantum wells separated by barriers 4 and 6 nm wide. The coupled excitons were energetically separated by 4…

Nanowire Array Breath Acetone Sensor for Diabetes Monitoring Open

Shiyu Wei, Zhe Li, Krishnan Murugappan, Ziyuan Li, Mykhaylo Lysevych , et al. · 2023

Diabetic ketoacidosis (DKA) is a life-threatening acute complication of diabetes in which ketone bodies accumulate in the blood. Breath acetone (a ketone) directly correlates with blood ketones, such that breath acetone monitoring could be…

Hierarchically Multiscale Vertically Oriented NiFeCo Nanoflakes for Efficient Electrochemical Oxygen Evolution at High Current Densities Open

Asim Riaz, Zelio Fusco, Felipe Kremer, Bikesh Gupta, Doudou Zhang , et al. · 2023

Crucial advancements in versatile catalyst systems capable of achieving high current densities under industrial conditions, bridging the gap between fundamental understanding and practical applications, are pivotal to propel the hydrogen e…

An efficient modeling workflow for high-performance nanowire single-photon avalanche detector Open

Zhe Li, Hark Hoe Tan, C. Jagadish, Lan Fu · 2023

Single-photon detector (SPD), an essential building block of the quantum communication system, plays a fundamental role in developing next-generation quantum technologies. In this work, we propose an efficient modeling workflow of nanowire…

Nanowires in Terahertz Photonics: Harder, Better, Stronger, Faster Open

Hannah J. Joyce, Stephanie O. Adeyemo, Srabani Kar, Jamie D. Lake, Chawit Uswachoke , et al. · 2023

By virtue of their quasi one-dimensional geometries, III-V semiconductor nanowires present unique capabilities for terahertz photonic devices. Ultrafast terahertz polarisation modulators and miniature terahertz photoconductive detectors ar…

Unlocking Ultra‐High Performance in Immersed Solar Water Splitting with Optimised Energetics Open

Joshua D. Butson, Astha Sharma, Julie Tournet, Yuan Wang, Rao Tatavarti , et al. · 2023

This research introduces a pioneering approach to solar water splitting technology, utilizing an innovative, highly efficient immersed system. The system incorporates a flexible array of electrochemical and photoelectrochemical cells, powe…

Large-area epitaxial growth of InAs nanowires and thin films on hexagonal boron nitride by metal organic chemical vapor deposition Open

Aswani Gopakumar Saraswathy Vilasam, Sonachand Adhikari, Bikesh Gupta, Sivacarendran Balendhran, Naoki Higashitarumizu , et al. · 2023

Large-area epitaxial growth of III–V nanowires and thin films on van der Waals substrates is key to developing flexible optoelectronic devices. In our study, large-area InAs nanowires and planar structures are grown on hexagonal boron nitr…

Lasing in Zn-doped GaAs nanowires on an iron film Open

Gyanan Aman, Mykhaylo Lysevych, Hark Hoe Tan, C. Jagadish, Heidrun Schmitzer , et al. · 2023

In this work, we demonstrate optically pumped lasing in highly Zn-doped GaAs nanowires (NWs) lying on an iron film. The conically shaped NWs are first covered with an 8 nm thick Al 2 O 3 film to prevent atmospheric oxidation and mitigate b…

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