2 citations · 4 across the 12 of their papers we have counts for
12 papers
Temporal Fourier Optics Reveals Hidden Hybridized Light-Matter States
Juan-Feng Zhu, Wenjie Zhou, Shihao Feng +5
Spectral measurements provide fundamental insights into wave systems by revealing resonances, mode hybridization, and light-matter interactions. However, intrinsic dissipation and…
Crystal orientation enables near-unity nonlinear circular dichroism in resonant metasurfaces
Chi Wang, Dmitrii Gromyko, Polina Pantiukhina +2
Achieving near-unity nonlinear circular dichroism (CD) typically requires geometric symmetry breaking, making it challenging to combine helicity selectivity, resonant enhancement,…
Dual-state control of lasing and absorption via conjugate exceptional points
Arnab Laha, Somnath Ghosh, Adam Miranowicz +1
Lasing and coherent perfect absorption (CPA) are time-reversed manifestations of non-Hermitian light-matter interactions. While exceptional points (EPs) have been extensively explo…
Enhancing Volumetric Optical Chirality through 2D-3D Structural Design Evolution
Chia-Te Chang, Xiaoyan Zhou, Dmitrii Gromyko +6
Circular dichroism (CD) sensing plays a pivotal role in probing molecular chirality in biomedical sciences. However, engineering superchiral electromagnetic fields that can reliabl…
Spectral localization of single-nanoparticle plasmons through photonic substrate engineering
Shihao Feng, Juan-Feng Zhu, Xinyi Fan +8
Surface plasmon resonances (SPRs) are crucial for confining light beyond the diffraction limit, yet heavy metal losses often limit their spectral localization. Here, we propose a p…
Light-cone-proximal quasi-BICs for chiral lasing at grazing angles
Dmitrii Gromyko, Cheng-Wei Qiu, Kirill Koshelev +1
Chiral quasi-bound states in the continuum (q-BICs) have recently emerged in metaphotonics as resonances that combine ultrahigh quality factors with near-unity circular polarizatio…
Probing dynamics of time-varying media: Beyond abrupt temporal interfaces
Ayan Nussupbekov, Juan-Feng Zhu, Yuriy Akimov +4
This work investigates the effects of time-varying media, where optical properties change over time, on electromagnetic wave propagation, focusing on plane waves and free-electron…
Particle-In-Cell Simulations of Quantum Plasmas
Gregory K. Ngirmang, Hue T. B. Do, Guangxin Liu +2
Room-temperature metals and semi-metals which consist of a gas of bound electrons in a near-continuum band structure can be classified as cold quantum plasmas. This insight suggest…
Nonlinear Terahertz Resonances from Ballistic Electron Funnelling
Hue T. B. Do, Gregory K. Ngirmang, Wu Lin +1
We introduce a new mechanism for second-harmonic generation through geometrically rectifying-funneling-ballistic electrons in THz optical resonators. Our resonant rectifiers inhere…
Enabling all-to-circular polarization upconversion by nonlinear chiral metasurfaces with rotational symmetry
Dmitrii Gromyko, Jun Siang Loh, Jiangang Feng +2
We implement a stacking strategy in designing chiral metasurfaces with high rotational symmetry, enabling quasi-bound-in-the-continuum (quasi-BIC) resonances characterized by absol…
Unidirectional Chiral Emission via Twisted Bi-layer Metasurfaces
Dmitrii Gromyko, Shu An, Sergey Gorelik +8
Controlling and channelling light emissions from unpolarized quantum dots into specific directions with chiral polarization remains a key challenge in modern photonics. Stacked met…
Smith-Purcell radiation from time grating
Juan-Feng Zhu, Ayan Nussupbekov, Wenjie Zhou +8
Smith-Purcell radiation (SPR) occurs when an electron skims above a spatial grating, but the fixed momentum compensation from the static grating imposes limitations on the emission…