Results 151 to 160 of about 17,587,514 (208)

All‐Optical Dual‐Angle Diffractive Neural Networks for 2D Direction‐of‐Arrival Estimation

open access: yesNanophotonics, Volume 15, Issue 20, 27 October 2026.
A diffractive neural network with an integrated spatial encoder resolves the direction of an incoming terahertz signal entirely through optical propagation. After the signal passes through the cross‐shaped input and two 3D‐printed diffractive layers, two detector arrays read its two incident angles simultaneously.
Chenjie Xiong   +8 more
wiley   +1 more source

Rapid Glioma Subtype Classification Using Label-Free Terahertz Time-Domain Spectroscopy and Hierarchical Machine Learning. [PDF]

open access: yesJ Biophotonics
Sun P   +11 more
europepmc   +1 more source

High‐Isolation Nonreciprocal Sawtooth Grating via Quasi‐Bound States in the Continuum

open access: yesNanophotonics, Volume 15, Issue 20, 27 October 2026.
We demonstrate a silicon sawtooth grating that simultaneously hosts three quasi‐BIC resonances. Leveraging the enhanced local field and directional coupling asymmetry, the device achieves a maximum nonreciprocal intensity ratio (NRIR) of 2.99 and an isolation exceeding 67 dB.
Changqing Zhong   +6 more
wiley   +1 more source

Widely Tunable Dual‐Wavelength Spacing via Temperature Control in A Single Self‐Assembled Nanowire‐Well Chip With Stress Modification

open access: yesNanophotonics, Volume 15, Issue 20, 27 October 2026.
A novel and simple solution for achieving dual‐wavelength emission with widely tunable dual‐wavelength spacing on a single InGaAs self‐assembled nanowire‐quantum well composite structure chip based on thermal modulation is proposed. This research holds significant importance for enhancing the dynamic‐adaptability and compactness of dual‐wavelength ...
Yuhong Wang   +4 more
wiley   +1 more source

The Application of Terahertz Time-Domain Spectroscopy to Identification of Potato Late Blight and Fusariosis. [PDF]

open access: yesPathogens, 2021
Penkov NV   +6 more
europepmc   +1 more source

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