Results 221 to 230 of about 275,542 (299)

Ultrafast time‐resolved X‐ray absorption spectroscopy at FemtoMAX beamline

Journal of Synchrotron Radiation, EarlyView.
A new setup for femtosecond resolution X‐ray absorption spectroscopy with energy ranging from 2 to 15 keV is established.We report on the development and first experiments at a new X‐ray absorption spectroscopy (XAS) endstation at the FemtoMAX beamline of the MAX IV Laboratory.
Van-Thai Pham, Katharina Kubicek, Ahn Byungnam, Carl Ekström, David Kroon, Zhangatay Nurekeyev, Mohammed Sekkal, Axl Eriksson, Hyein Hwang, Anna Zymaková, Thanh Binh Nguyen, Minh-Huong Ha-Thi, Xuan Thang Vu, Yohei Uemura, Jörgen Larsson, Christian Bressler, Jens Uhlig   +16 more
wiley   +1 more source

Fermi-level-managed multi-barrier heterojunction diodes for terahertz detection. [PDF]

Sci Rep
Belio-Apaolaza I, Seddon J, Renaud CC.
europepmc   +1 more source

Ultrafast time‐resolved small‐angle X‐ray scattering setup on the FemtoMAX beamline

Journal of Synchrotron Radiation, EarlyView.
The feasibility of performing time‐resolved small‐angle X‐ray scattering measurements with picosecond temporal resolution on the FemtoMAX beamline at the MAX IV Laboratory in Sweden is demonstrated.The design and main characteristics of the ultrafast time‐resolved small‐angle X‐ray scattering (TR‐SAXS) setup on the FemtoMAX beamline at MAX IV are ...
J. C. Ekström, P. Mota-Santiago, F. Engelmann, M. Leorato, B. Ahn, D. Kroon, J. Larsson, A. E. Terry, A. Jurgilaitis   +8 more
wiley   +1 more source

Sensitive Sub-THz Photodetection in Twisted Graphene with Broad Spectral Response. [PDF]

Adv Sci (Weinh)
Wu J, Hou M, Zhu S, Cui J, Mei J, Sun Q, Wang Y, Xie B, Watanabe K, Taniguchi T, Liu Z, Zhang Q, Cai X.   +12 more
europepmc   +1 more source

Microring Resonator Dispersion Metrology With Neural Networks

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
We present a machine learning framework for inverse and forward characterization of microring resonators, inferring geometry and material dispersion from sparse spectral data. The approach achieves nanometer‐scale accuracy and > 99% material identification, while reconstructing full dispersion spectra.
Ergun Simsek, Shao‐Chien Ou, Gregory Moille, Kartik Srinivasan   +3 more
wiley   +1 more source

Thin-film lithium niobate terahertz differential field detectors with a bandwidth reaching 3 terahertz. [PDF]

Nat Commun
Herter A, Shams-Ansari A, Lončar M, Faist J.   +3 more
europepmc   +1 more source

Reconfigurable Terahertz Multi‐Harmonic Dual‐Combs

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
Terahertz dual‐comb spectroscopy requires precise control of repetition frequencies. A reconfigurable dual‐comb system is realized on a single self‐detected quantum cascade laser platform, where harmonic order serves as a new tuning parameter. Switching among fundamental and harmonic states enables flexible multi‐heterodyne down‐conversion without ...
Xuhong Ma, Zhiwei Qin, Xianglong Bi, Ziping Li, Wenjian Wan, Binbin Liu, Guibin Liu, Yue Pan, Yanming Lu, Hua Li   +9 more
wiley   +1 more source

Large terahertz photovoltaic effect enhanced by phonon excitations in ferroelectric semiconductor SbSI. [PDF]

Sci Adv
Okamura Y, Guo GY, Kaneko Y, Nakamura M, Sotome M, Ogawa N, Kawasaki M, Tokura Y, Takahashi Y.   +8 more
europepmc   +1 more source

Experimental and Computational Investigations of Surface Polaritons at Metal‐Oxide‐Semiconductor Interfaces

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
STEM‐EELS and full‐wave FDTD reveal electron‐driven surface‐polariton modes at buried Au/oxide/Si interfaces with 10 nm SiO2 or Al2O3 spacers. Extinction is dominated by non‐radiative absorption, while oxide permittivity shifts the resonance and controls evanescent‐field penetration across the spacer into silicon.
Humaira Zafar, Qiang Zhang, Rainer Straubinger, Ayman Rezek, Mauro Pereira, Ammar Nayfeh, Dalaver H. Anjum   +6 more
wiley   +1 more source

On-Chip THz-TDS Platform for High-Sensitivity Analysis of Graphene and Thin-Film Conductors. [PDF]

Nano Lett
Lee J, Michalski A, Sawallich S, Lemme MC, Nagel M.   +4 more
europepmc   +1 more source