Results 221 to 230 of about 893,299 (282)
Planar Super‐Oscillation Diffractive Lenses: Practical Developments and Applications
This review examines planar super‐oscillation diffractive lenses as a unified framework for super‐oscillatory lenses and supercritical lenses. It focuses on applications in super‐resolution imaging, micro/nanofabrication, and precision measurement and relates their application‐specific requirements to focal‐field control, multiobjective design ...
Yutian Cheng +6 more
wiley +1 more source
On-Chip THz-TDS Platform for High-Sensitivity Analysis of Graphene and Thin-Film Conductors. [PDF]
Lee J +4 more
europepmc +1 more source
Abstract The complex refractive index (CRI) of ice is one of the main parameters driving the optical properties of ice clouds and frozen surfaces, hence their climate impact. While already characterized at short wavelengths, ice CRI has never been measured across the infrared range at temperatures relevant to Earth.
Cecilia Taverna +6 more
wiley +1 more source
Ultrabroadband Spacetime Nanoscopy of Terahertz Polaritons in a van der Waals Cavity. [PDF]
Wehmeier L +17 more
europepmc +1 more source
This paper presents 3D bulk metamaterials in which diced cross‐bar meta‐grains are randomly dispersed in a polymer matrix by molding. The de‐latticed composite provides isotropic and band‐selective THz attenuation with over tenfold dispersion suppression compared to the periodic metasurface.
Zhen Liu +2 more
wiley +1 more source
Nanogap-enhanced terahertz suppression of superconductivity. [PDF]
Kim J +10 more
europepmc +1 more source
Optomechanical frequency combs are generated in high‐Q microbubble cavities by simultaneous ultrasound and laser excitation, arising from nonlinear coupling between optomechanical modes and ultrasonically driven mechanical oscillations. Comb spacing and intensity are tunable through acoustic and optical parameters, whereas the optical spring effect ...
Yuxing Zhang +5 more
wiley +1 more source
Ultrafast Control of Néel Vector in Collinear Antiferromagnet MnPt. [PDF]
Jana S, Mishra SS, Lourembam J, Singh R.
europepmc +1 more source
Lithography‐free spaced TiO2 NT arrays unlock tunable broadband absorption from THz to UV. By harnessing annealing‐driven phase transitions, strong phonon–polariton resonances emerge in the 1.4–3.6 THz range, whereas high absorptance persists beyond 10 THz.
Anjali Chaudhary +9 more
wiley +1 more source
Signal preprocessing for foreign body detection using terahertz real-time non-destructive imaging system. [PDF]
Lee HN, Park Y, Park JT, Yang JR.
europepmc +1 more source

