Results 191 to 200 of about 152,005 (336)

Exploring Double NDR Modulation and UV‐NIR Photodetection in MoS2/Sb2Se3 Heterostructures

open access: yesAdvanced Optical Materials, EarlyView.
In this study, a van der Waals Sb2Se3/MoS2 heterostructure exhibits dual negative differential resistance (NDR) peaks at room temperature. The first originates from band‐to‐band tunneling, while the second, triggered under laser illumination, is attributed to trap states and recombination dynamics.
Muhammad Suleman   +8 more
wiley   +1 more source

Illuminating Quantum Phenomena in 2D Materials: The Power of Optical Spectroscopy

open access: yesAdvanced Optical Materials, EarlyView.
Atomically thin 2D materials host quantum tunnelling, plasmonic and excitonic phenomena driven by reduced dimensionality and strong many‐body interactions. This review links these effects to state‐of‐the‐art optical probes—NSOM, pump–probe, CARS, TRR, and optical frequency comb spectroscopy—highlighting how their ultrahigh spatial–temporal resolution ...
Yuhui Zhou   +4 more
wiley   +1 more source

Light Intensity‐Controlled Photoconductance Polarity Switching for Neuromorphic and Logic Applications

open access: yesAdvanced Optical Materials, EarlyView.
Light intensity‐induced photoconductance polarity switching is demonstrated in geometrically asymmetric Schottky MoSe2 devices. The devices exhibit bidirectional reconfigurable optoelectronic logic gates and synaptic applications using a single light source, opening new avenues for multifunctional optoelectronic and neuromorphic computing systems ...
Amin Abnavi   +4 more
wiley   +1 more source

Topological Valley Photonic Waveguides: Scattering Matrix Evaluation for Linear Computing

open access: yesAdvanced Photonics Research, EarlyView.
This research is focused on the design of a 6‐port junction via valley photonic crystal waveguides to achieve equal power splitting of an incident signal towards three other ports. An in‐depth study is carried out to extract its corresponding scattering matrix.
Christian Johnson-Richards   +2 more
wiley   +1 more source

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