Results 241 to 250 of about 452,793 (301)

Reconfigurable Terahertz Multi‐Harmonic Dual‐Combs

open access: yesNanophotonics, 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   +9 more
wiley   +1 more source

Terahertz reflectivity dataset: Reading text on both sides of the page. [PDF]

open access: yesData Brief
Vadali G   +7 more
europepmc   +1 more source

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

open access: yesNanophotonics, 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   +6 more
wiley   +1 more source

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

open access: yesSci Adv
Okamura Y   +8 more
europepmc   +1 more source

Unveiling α‐MoO3 as a High‐Index, Low‐Loss Anisotropic Material: Bridging the Gap From Mid‐Infrared to Ultraviolet Nanophotonics

open access: yesAdvanced Materials, Volume 38, Issue 49, 1 September 2026.
α‐MoO3 is established as a high‐index, low‐loss anisotropic platform bridging mid‐infrared polaritonics and ultraviolet‐visible nanophotonics. Spectroscopic ellipsometry and calculations reveal refractive indices exceeding 3.9, with the largest in‐plane birefringence among transparent layered crystals at 425–500 nm, enabling zero‐order UV waveplates ...
Adilet N. Toksumakov   +14 more
wiley   +1 more source

Experimentally separating vacuum fluctuations from source radiation. [PDF]

open access: yesNat Commun
Herter A   +4 more
europepmc   +1 more source

Toward Highest Frequency, Phase‐Sensitive Electric Field Sensing Enabled by Plasmonic Circuits

open access: yesLaser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.
An electromagnetic field sensor using an optical sensor head for distortion‐free, high‐sensitivity measurements with potential for high‐frequency operation is presented. The frequency response is enabled by an antenna‐integrated plasmonic modulator. The sensitivity is calculated, and optimizations to obtain thermal‐background‐limited sensitivity are ...
Michael Baumann   +5 more
wiley   +1 more source

Dynamic Polarization Control of Nonlinear Terahertz Photoresponse via Topological Phase Transitions. [PDF]

open access: yesResearch (Wash D C)
Zhang L   +15 more
europepmc   +1 more source

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