Results 161 to 170 of about 1,207,154 (235)

Reconfigurable Geometric Phase Matching by Multilayered Nonlinear Thin‐Film Crystals

Laser &Photonics Reviews, EarlyView.
The concept of geometric phase matching is demonstrated as a dynamically reconfigurable approach for tunable nonlinear wave mixing in multilayered nonlinear thin‐film crystals. Experimental results reveal full modulation in a bilayer structure and near‐perfect spin‐selective phase matching of second‐harmonic generation in an eight‐layer configuration ...
Danielle Ben‐Haim, Mai Tal, Xiaoxi Xu, Tal Ellenbogen   +3 more
wiley   +1 more source

Bidirectional terahertz frequency conversion via structural resonances at a plasma time boundary. [PDF]

Sci Adv
Huang Y, Zhou B, Xuan A, Gao M, Lou J, Qu X, Zhao Z, Shang C, Wang X, Chang C, Asadchy V.   +10 more
europepmc   +1 more source

Chiral Quasi‐BICs Stemming From a Γ‐point Degeneracy

Laser &Photonics Reviews, EarlyView.
Band degeneracies universally exist in 2D periodic systems. However, the studies on the intrinsic properties of those isolated points remain limited. By exploring 3D chiral perturbations, chiral quasi‐BICs are achieved through a Γ‐point degeneracy in resonant metasurfaces with C4 symmetry.
Bohan Zhang, Dongha Yang, Yuhao Wu, Mingqi Zheng, Wei Zhu, Lei Kang, Kang Du, Douglas H. Werner, Shengxiang Wang   +8 more
wiley   +1 more source

Highly efficient narrowband terahertz pulse generated from a radial plasma oscillator via mid-infrared lasers. [PDF]

Sci Rep
Lee J, Kumar M, Park D, Ersfeld B, Jaroszynski DA, Nam I, Hur MS.   +6 more
europepmc   +1 more source

Scalable Room‐Temperature Terahertz Graphene Cameras

Small Methods, EarlyView.
ABSTRACT Terahertz (THz) imaging has emerged as a powerful tool for non‐destructive, label‐free analysis across several scientific disciplines, ranging from materials science to biomedical research. By capturing the spatial‐dependent information in a broad range of frequencies, this technique enables the identification of chemical composition ...
Lili Shi, Leonardo Viti, Miriam S. Vitiello   +2 more
wiley   +1 more source

Enhancing the Source-Side Transient Response of Logarithmic Double-Spiral Terahertz Photoconductive Antennas Using a Central-Feed-Boundary Tip Array. [PDF]

Micromachines (Basel)
Xu C, Wang S, Zhang Y, Dong H, Gao J, Wang G.   +5 more
europepmc   +1 more source

Current Advances of Treatments, Therapeutic Targets, Biomarkers, Novel Drugs, and Machine Learning for Hypopharyngeal Squamous Cell Carcinoma

World Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Hypopharyngeal squamous cell carcinoma (HSCC) is an aggressive subtype of head and neck squamous cell carcinoma with insidious onset, early metastasis, and dismal prognosis. Conventional multimodal therapy achieves limited survival benefit, highlighting an urgent need for refined precision strategies.
Ce Li, Rui Guan, Rui‐Jie Jiao, Zhi‐Jie Bi, Yang Fu, Yin Wang, Chen‐Yang Xu, Ye Qian, Ran Wei, Sheng‐Da Cao, Wen‐Ming Li, Dong‐Min Wei, Da‐Peng Lei   +12 more
wiley   +1 more source

A broadband lithium tantalate-on-silicon nitride heterogeneous modulator for optical and terahertz communications and radar sensing. [PDF]

Nat Commun
Su J, Yuan Y, Dai Y, Sun A, Ran S, Gao W, Liu W, Liu Y, Lu L, Zhang J, Zeng C, Dong B, Li Y, Chi N, Xia J, Chen J, Zhou L.   +16 more
europepmc   +1 more source

A femtosecond time‐resolved Bragg coherent diffraction imaging experimental setup at PAL‐XFEL for nanoscale lattice dynamics studies

Journal of Synchrotron Radiation, EarlyView.
The XSS beamline at PAL‐XFEL provides a femtosecond time‐resolved Bragg coherent X‐ray diffraction imaging setup, optimized for tracking transient lattice dynamics and nanoscale strain fields within single crystals during dynamic processes.We report on the design and operational characterization of a femtosecond time‐resolved Bragg coherent X‐ray ...
Jinback Kang, Jaeku Park, Chi Hyun Shim, Myung-Hoon Cho, Kook-Jin Moon, Sung Soo Ha, Hyunjung Kim, Sung-Lae Cho, Sunam Kim   +8 more
wiley   +1 more source

Terahertz Metasurface with Four-Degree-of-Freedom Geometric Encoding for Broadband Multichannel Fingerprint Sensing. [PDF]

Nanomaterials (Basel)
Meng J, Hao W, Wang T, Shi Y, Xu W, Pan M.   +5 more
europepmc   +1 more source