Explanipedia

<i>μ</i> W-level green light generation via quasi- and modal-phase-matched lithium niobate waveguides Open

Sunghyun Moon, Hansol Kim, Junhyung Lee, Changhyun Kim, Minho Choi , et al. · 2025

Nonlinear frequency conversion in thin-film lithium niobate (TFLN) is a promising method for visible light generation. In particular, efficient green light generation remains challenging due to the lack of direct gain media, making nonline…

Ray-based extraction of 5D optical information using a uni-form light transformation framework Open

Minho Choi, Jaewu Choi · 2025

We present a deterministic intuitively simple forward framework for extracting five-dimensional (5D) ray information—comprising spatial (x, y, z) and angular (θ, φ) patterns—from conventional focal stacks of 2D images, so-called uni-form l…

Real-Time Cloth Simulation Using WebGPU: Evaluating Limits of High-Resolution Open

Nak-Jun Sung, Jun Ma, T S Kim, Yoo-joo Choi, Minho Choi , et al. · 2025

This study explores the capabilities of WebGPU, an emerging web graphics paradigm, for real-time cloth simulation. Traditional WebGL-based methods have been in handling complex physical simulations due to their emphasis on graphics renderi…

A Study on the Diagnosis of Lumbar Spinal Malposition in Chuna Manual Therapy Using X-Ray Images Based on Digital Markers Open

Min-Su Ju, Tae-Yong Park, Minho Choi, Ko YounSeok, Young Cheol Na , et al. · 2025

Background/Objectives: This study aimed to evaluate digital markers and establish quantitative diagnostic criteria for spinal malpositions in Chuna manual therapy using lumbar X-rays. Methods: A total of 2000 X-ray images were collected fr…

Transferable polychromatic optical encoder for neural networks Open

Minho Choi, Jinlin Xiang, Anna Wirth-Singh, Seung‐Hwan Baek, Eli Shlizerman , et al. · 2025

Integrated bright source of polarization-entangled photons using lithium niobate photonic chips Open

Hansol Kim, Minho Choi, Junhyung Lee, Yongchan Park, Sunghyun Moon , et al. · 2025

Quantum photonics has rapidly advanced as a key area for developing quantum technologies by harnessing photons' inherent quantum characteristics, particularly entanglement. Generation of entangled photon pairs, known as Bell states, is cru…

All-Dielectric Metasurface with a Two-Dimensional Locally Flat Photonic Band Open

Minho Choi, Christopher Munley, Arnab Manna, Johannes E. Fröch, Arthur Barnard , et al. · 2025

Photonic flatbands offer promising light-matter interaction due to their unique slow-light nature. In recent years, flatbands have also attracted significant interest in optical engineering because of their angle-insensitive resonant chara…

Full color visible imaging with crystalline silicon meta-optics Open

Johannes E. Fröch, Luocheng Huang, Zhihao Zhou, Virat Tara, Zhuoran Fang , et al. · 2025

Silicon is a common material of choice for semiconductor optics in the infrared spectral range, due to its low cost, well-developed high-volume manufacturing methods, high refractive index, and transparency. It is, however, typically ill-s…

Freeform thin-film lithium niobate mode converter for photon-pair generation Open

Changhyun Kim, Munseong Bae, Minho Choi, Sangbin Lee, Myunghoo Lee , et al. · 2025

Thin-film lithium niobate (TFLN) has emerged as a promising platform for integrated photonics due to its exceptional material properties. The application of freeform topology optimization to TFLN devices enables the realization of compact …

Transferable polychromatic optical encoder for neural networks Open

Arka Majumdar, Minho Choi, Jinlin Xiang, Anna Wirth-Singh, Seung‐Hwan Baek , et al. · 2025

Artificial neural networks (ANNs) have fundamentally transformed the field of computer vision, providing unprecedented performance. However, these ANNs for image processing demand substantial computational resources, often hindering real-t…

Opportunities and Challenges of Solid-State Quantum Nonlinear Optics Open

Abhinav Kala, David Sharp, Minho Choi, Arnab Manna, Prathmesh Deshmukh , et al. · 2024

Nonlinear interactions between single quantum particles are at the heart of any quantum information system, including analog quantum simulation and fault-tolerant quantum computing. This remains a particularly difficult problem for photoni…

Observation of Photonic Chiral Flatbands Open

Minho Choi, Andrea Alú, Arka Majumdar · 2024

Distinct selectivity to the spin angular momenta of photons have garnered significant attention in recent years, for their relevance in basic science and for imaging and sensing applications. While nonlocal metasurfaces with strong chiral …

Meta-Optics Triplet for Zoom Imaging at Mid-Wave Infrared Open

Anna Wirth-Singh, Arturo Martin Jimenez, Minho Choi, Johannes E. Fröch, Rose Johnson , et al. · 2024

Lenses with dynamic focal length, also called zoom functionality, enable a variety of applications related to imaging and sensing. The traditional approach of stacking refractive lenses to achieve this functionality results in an expensive…

Deterministic quasi-continuous tuning of phase-change material integrated on a high-volume 300-mm silicon photonics platform Open

Rui Chen, Virat Tara, Minho Choi, Jayita Dutta, Justin Sim , et al. · 2024

Programmable photonic integrated circuits (PICs) consisting of reconfigurable on-chip optical components have been creating new paradigms in various applications, such as integrated spectroscopy, multi-purpose microwave photonics, and opti…

Deterministic quasi-continuous tuning of phase-change material integrated on a high-volume 300-mm silicon photonics platform Open

Rui Chen, Virat Tara, Minho Choi, Jayita Duta, Justin Sim , et al. · 2023

Programmable photonic integrated circuits (PICs) consisting of reconfigurable on-chip optical components have been creating new paradigms in various applications, such as integrated spectroscopy, multi-purpose microwave photonics, and opti…

Nonlocal, Flat Band Meta-optics for Monolithic, High Efficiency, Compact Photodetectors Open

Minho Choi, Christopher Munley, Johannes E. Froech, Rui Chen, Arka Majumdar · 2023

Miniaturized photodetectors are becoming increasingly sought-after components for a range of next generation technologies, such as autonomous vehicles, integrated wearable devices, or gadgets embedded in the Internet of Things. A major cha…

Ultrafast and Bright Quantum Emitters from the Cavity-Coupled Single Perovskite Nanocrystals Open

Seongmoon Jun, Joonyun Kim, Minho Choi, Byung Su Kim, Jinu Park , et al. · 2023

Perovskite nanocrystals (NCs) have attracted increasing interest in the realization of single-photon emitters owing to their ease of chemical synthesis, wide spectral tunability, fast recombination rate constant, scalability, and high quan…

Deep Learning Approach to Predict Acoustic Field in Transcranial Focused Ultrasound Open

Mooseok Jang, Minho Choi, In Gab Jeong, Seung‐Schik Yoo, Kyoungro Yoon , et al. · 2023

The distortion caused by the skull poses challenges in determining the intensity and focal position of ultrasound waves in transcranial focused ultrasound therapy.Computational simulations can address this but are limited by high computati…

Triple Spiral Arms of a Triple Protostar System Imaged in Molecular Lines Open

Jeong‐Eun Lee, Tomoaki Matsumoto, Hyun-Jeong Kim, Seokho Lee, D. Harsono , et al. · 2023

Most stars form in multiple-star systems. For a better understanding of their formation processes, it is important to resolve the individual protostellar components and the surrounding envelope and disk material at the earliest possible fo…

The JCMT BISTRO Survey: Studying the Complex Magnetic Field of L43 Open

Janik Karoly, D. Ward‐Thompson, Kate Pattle, David Berry, A. P. Whitworth , et al. · 2023

We present observations of polarized dust emission at 850 μ m from the L43 molecular cloud, which sits in the Ophiuchus cloud complex. The data were taken using SCUBA-2/POL-2 on the James Clerk Maxwell Telescope as a part of the BISTRO lar…

Triple spiral arms of a triple protostar system imaged in molecular lines Open

Jeong‐Eun Lee, Tomoaki Matsumoto, Hyun-Jeong Kim, Seokho Lee, D. Harsono , et al. · 2023

Most stars form in multiple star systems. For a better understanding of their formation processes, it is important to resolve the individual protostellar components and the surrounding envelope and disk material at the earliest possible fo…

Single Quantum Dot Selection and Tailor‐Made Photonic Device Integration using a Nanoscale‐Focus Pinspot (Adv. Mater. 26/2023) Open

Minho Choi, Mireu Lee, Sung‐Yul L. Park, Byung Su Kim, Seongmoon Jun , et al. · 2023

From Random to Deterministic Coupling In article number 2210667, Minho Choi, Jin Dong Song, Young-Ho Ko, Yong-Hoon Cho, and co-workers use a non-destructive nanoscale focus pin-spot method to select an array of single quantum dots from ran…

Ultrafast and Bright Quantum Emitters from the Cavity Coupled Single Perovskite Nanocrystals Open

Seongmoon Jun, Joonyun Kim, Minho Choi, Byungsu Kim, Jinu Park , et al. · 2023

Perovskite nanocrystals (NCs) have attracted increasing interest for the realization of single-photon emitters, owing to their ease of chemical synthesis, wide spectral tunability, fast recombination rate, scalability, and high quantum yie…

Scannable Dual-Focus Metalens with Hybrid Phase Open

Gi-Hyun Go, Chung Hyun Park, Kie Young Woo, Minho Choi, Yong‐Hoon Cho · 2023

Metalenses with two foci in the longitudinal or transverse direction, called bifocal or dual-focus metalenses, are promising building blocks in tomography techniques, data storage, and optical tweezers. For practical applications, relative…

First BISTRO Observations of the Dark Cloud Taurus L1495A-B10: The Role of the Magnetic Field in the Earliest Stages of Low-mass Star Formation Open

D. Ward‐Thompson, Janik Karoly, Kate Pattle, A. P. Whitworth, J. M. Kirk , et al. · 2023

We present BISTRO Survey 850 μ m dust emission polarization observations of the L1495A-B10 region of the Taurus molecular cloud, taken at the James Clerk Maxwell Telescope (JCMT). We observe a roughly triangular network of dense filaments.…

Single Quantum Dot Selection and Tailor‐Made Photonic Device Integration using a Nanoscale‐Focus Pinspot Open

Minho Choi, Mireu Lee, Sung‐Yul L. Park, Byung Su Kim, Seongmoon Jun , et al. · 2023

Among the diverse platforms of quantum light sources, epitaxially grown semiconductor quantum dots (QDs) are one of the most attractive workhorses for realizing quantum photonic technologies owing to their outstanding brightness and scalab…

First BISTRO observations of the dark cloud Taurus L1495A-B10: the role of the magnetic field in the earliest stages of low-mass star formation Open

D. Ward‐Thompson, Janik Karoly, Kate Pattle, A. P. Whitworth, J. M. Kirk , et al. · 2023

We present BISTRO Survey 850 μm dust emission polarisation observations of the L1495A-B10 region of the Taurus molecular cloud, taken at the JCMT. We observe a roughly triangular network of dense filaments. We detect 9 of the dense starles…

Visible Wavelength Flatband in a Gallium Phosphide Metasurface Open

Christopher Munley, Arnab Manna, David Sharp, Minho Choi, Hao G. Nguyen , et al. · 2023

Engineering the dispersion of light in a metasurface allows for controlling the light-matter interaction strength between light confined in the metasurface and materials placed within its near-field. Specifically, engineering a flatband di…

Enhancement of Single‐Photon Purity and Coherence of III‐Nitride Quantum Dot with Polarization‐Controlled Quasi‐Resonant Excitation (Small 5/2023) Open

Seongmoon Jun, Minho Choi, Baul Kim, Martina Morassi, Maria Tchernycheva , et al. · 2023

Quantum Dots The quantum dot embedded in the nanowire is excited by the quasi-resonant excitation laser, which generates electron and hole in the excited states of the conduction and valence bands, respectively. After relaxation of each el…

JCMT BISTRO Observations: Magnetic Field Morphology of Bubbles Associated with NGC 6334 Open

Mehrnoosh Tahani, Pierre Bastien, Ray S. Furuya, Kate Pattle, Doug Johnstone , et al. · 2023

We study the H ii regions associated with the NGC 6334 molecular cloud observed in the submillimeter and taken as part of the B -fields In STar-forming Region Observations Survey. In particular, we investigate the polarization patterns and…

Minho Choi YOU? Author Swipe