Din Ping Tsai
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View article: Ultra-compact broadband terahertz spectroscopy sensor enabled by resonant-gradient metasurface
Ultra-compact broadband terahertz spectroscopy sensor enabled by resonant-gradient metasurface Open
Research on two-dimensional designer optical structures, especially ultra-thin optical elements dubbed ‘metasurfaces’, focused on engineering resonances to enrich the broadband spectral information, catering to the increasing sensing and d…
View article: Riemann-Silberstein geometric phase in 4D polarization space
Riemann-Silberstein geometric phase in 4D polarization space Open
Geometric phase is a far-reaching concept in quantum and classical physics. The first discovered geometric phase, the Pancharatnam-Berry (PB) phase, has profoundly shaped nanophotonics through metasurfaces. However, the PB phase arises fro…
View article: Multiuser all-optical quantum network based on metasurfaces
Multiuser all-optical quantum network based on metasurfaces Open
A crucial aspect of quantum information is the establishment of multiuser quantum networks, ensuring secure transmission of information among separated users. However, establishing a large-scale network remains a substantial challenge, req…
View article: Varifocal Meta‐Lens for Multifunctional Focusing and Imaging
Varifocal Meta‐Lens for Multifunctional Focusing and Imaging Open
Integrating multifunctionality and tunability in beam control is crucial for advanced applications such as adaptive imaging and optical microscopy. However, achieving both capabilities simultaneously in a compact optical system remains cha…
View article: Fostering cultural change in research through innovative knowledge sharing, evaluation, and community engagement strategies
Fostering cultural change in research through innovative knowledge sharing, evaluation, and community engagement strategies Open
Scientific research needs a new system that appropriately values science and scientists. Key innovations, within institutions and funding agencies, are driving better assessment of research, with open knowledge and FAIR (findable, accessib…
View article: Metalens‐Based Dual Light‐Sheet Fluorescence Microscopy
Metalens‐Based Dual Light‐Sheet Fluorescence Microscopy Open
Light‐sheet fluorescence microscopy (LSFM) provides optically sectioned fluorescence images with excellent background rejection for rapid and volumetric imaging. However, traditional LSFM typically relies on single‐sided illumination and t…
View article: Meta‐Dispersive 3D Chromatic Confocal Measurement
Meta‐Dispersive 3D Chromatic Confocal Measurement Open
3D reconstruction can perceive the detailed structures of real‐world objects. Integrating metasurfaces with stereo vision or structured‐light projection enables compact and efficient 3D reconstruction systems, beneficial for next‐generatio…
View article: High‐Dimensional Remote State Preparation with Metasurface‐Based Hyper‐Entangled Photon Source
High‐Dimensional Remote State Preparation with Metasurface‐Based Hyper‐Entangled Photon Source Open
A high‐dimensional quantum network with multiple degrees of freedom provides enhanced channel capacity and noise resilience, making it highly significant for quantum communication. However, achieving quantum networks with high‐dimensional …
View article: Seven-octave ultrabroadband metamaterial absorbers via quality-factor-weighted mode density modulation
Seven-octave ultrabroadband metamaterial absorbers via quality-factor-weighted mode density modulation Open
Absorption is a crucial parameter in shaping wave propagation dynamics, yet achieving ultrabroadband absorption remains highly challenging, particularly in balancing a low-frequency and broad bandwidth. Here, we present a metamaterial abso…
View article: Scalable high-efficiency metasurface-refractive retro-reflector
Scalable high-efficiency metasurface-refractive retro-reflector Open
A retroreflector, an optical device that reflects light back along its incident path, plays a crucial role in optics. However, achieving high-efficiency, large-area retroreflection in planar optical systems remains a persistent challenge, …
View article: Broadband, Wide‐Angle, and Versatile Metasurface Illusions with Inverse Synthetic Aperture Radar Imaging (Adv. Sci. 18/2025)
Broadband, Wide‐Angle, and Versatile Metasurface Illusions with Inverse Synthetic Aperture Radar Imaging (Adv. Sci. 18/2025) Open
Novel Way for Metasurface Illusion Design In article number 2416172, Zeyong Wei, Yuzhi Shi, Din Ping Tsai, Xinbin Cheng, and co‐workes propose an advanced multi‐layer metasurface illusion strategy utilizing a technique known as “inverse sy…
View article: Multi‐Wavelength Achromatic 3D Meta‐holography with Zoom Function
Multi‐Wavelength Achromatic 3D Meta‐holography with Zoom Function Open
With the development of nanofabrication technology, meta‐holography has shown unprecedented potential for light regulation. However, due to the wavelength mismatch, chromatic aberrations are inevitable in multi‐wavelength meta‐holography. …
View article: Quantitative Phase Imaging with a Meta-Based Interferometric System
Quantitative Phase Imaging with a Meta-Based Interferometric System Open
Optical phase imaging has become a pivotal tool in biomedical research, enabling label-free visualization of transparent specimens. Traditional optical phase imaging techniques, such as Zernike phase contrast and differential interference …
View article: Broadband Acoustic Purcell Effect from Collective Bound States in the Continuum
Broadband Acoustic Purcell Effect from Collective Bound States in the Continuum Open
The Purcell effect significantly improves the performance of various emission devices but is typically constrained by a narrow operational bandwidth due to inherent resonant mechanisms. This study achieves broadband acoustic Purcell effect…
View article: Self‐Powered Frequency‐Selective Acoustic Sensor Based on Bound States in the Continuum
Self‐Powered Frequency‐Selective Acoustic Sensor Based on Bound States in the Continuum Open
Sound is a clean, renewable, and abundant energy source present ubiquitously in nature. However, it is often underutilized due to its low energy density in most environments. This study introduces a two‐state system that supports a Friedri…
View article: Broadband, Wide‐Angle, and Versatile Metasurface Illusions with Inverse Synthetic Aperture Radar Imaging
Broadband, Wide‐Angle, and Versatile Metasurface Illusions with Inverse Synthetic Aperture Radar Imaging Open
Generation of controllable illusions has raised widespread interest. Over the past few decades, this field has been revolutionized by the emergence of metamaterials and metasurfaces. However, current efforts utilizing single‐layer metasurf…
View article: All-dielectric nonlinear metasurface: from visible to vacuum ultraviolet
All-dielectric nonlinear metasurface: from visible to vacuum ultraviolet Open
All-dielectric nonlinear metasurfaces have higher damage thresholds and more flexible manipulation of resonant modes. Because of the intrinsic advantages of short-wavelength regions, related research gradually moved from the visible to the…
View article: Nonlinear Meta-Devices: From Plasmonic to Dielectric
Nonlinear Meta-Devices: From Plasmonic to Dielectric Open
Meta-devices have significantly revitalized the study of nonlinear optical phenomena. At the nanoscale, the detrimental effects of phase mismatching between fundamental and harmonic waves can be substantially reduced. This review analyzes …
View article: Seven-octave ultrabroadband metamaterial absorbers via Q-weighted mode density modulation
Seven-octave ultrabroadband metamaterial absorbers via Q-weighted mode density modulation Open
Absorption is a crucial parameter in shaping wave propagation dynamics, yet achieving ultra-broadband absorption remains highly challenging, particularly in balancing low-frequency and broad bandwidth. Here, we present a metamaterial absor…
View article: Chip-scale metaphotonic singularities: topological, dynamical, and practical aspects
Chip-scale metaphotonic singularities: topological, dynamical, and practical aspects Open
Research about singularities has been driving scientific advancements across mathematics and physics. Comprehending and harnessing the novel properties of singularities in photonics can facilitate the development of integrated micro-nano d…
View article: Metalens array for quantum random number
Metalens array for quantum random number Open
Quantum random number generation (QRNG) leveraging intrinsic quantum uncertainty has attracted significant interest in the field of integrated photonic architecture, with applications in quantum cryptography, tests of quantum nonlocality, …