Results 161 to 170 of about 31,529 (265)
Laser &Photonics Reviews, EarlyView.This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley +1 more source
Fast Terahertz Imaging Model Based on Group Sparsity and Nonlocal Self-Similarity. [PDF]
Micromachines (Basel), 2022 Ren X, Bai Y, Niu Y, Jiang Y.
europepmc +1 more source
Laser &Photonics Reviews, EarlyView.A heterogeneous III‐V/SiN platform for lasers at 800 nm is realized using the micro‐transfer printing method. Efficient GaAs gain sections are directly butt‐coupled to SiN waveguides, enabling continuous‐wave and mode‐locked extended‐cavity lasers. The mode‐locked lasers generate highly stable pulse trains with repetition rates up to 9.2 GHz and a ...
Max Kiewiet +13 more
wiley +1 more source
Artificial Intelligence-Assisted Terahertz Imaging for Rapid and Label-Free Identification of Efficient Light Formula in Laser Therapy. [PDF]
Biosensors (Basel), 2022 Shi J +7 more
europepmc +1 more source
Laser &Photonics Reviews, EarlyView.Photonic neural networks are emerging as a powerful tool for analyzing light. The article reports a photonic deep random neural network that performs single‐shot low‐latency measurements of the state and degree of polarization with high accuracy. Using only a stack of glass diffusers on top of a small camera sensor, this neuromorphic polarization ...
Alessandro Petrini +2 more
wiley +1 more source
Design and Performance of Extraordinary Low-Cost Compact Terahertz Imaging System Based on Electronic Components and Paraffin Wax Optics. [PDF]
Sensors (Basel), 2022 Tamošiūnas V +5 more
europepmc +1 more source
Pulse Generation by On‐Chip Dispersion Compensation at 8 µm Wavelength
Laser &Photonics Reviews, EarlyView.This work demonstrates on‐chip pulse generation at 8 μm$\mathrm{\mu}\mathrm{m}$ using chirped Bragg gratings in SiGe graded‐index photonic circuits to compensate the quadratic phase of quantum cascade laser frequency combs. With this approach pulses as short as 1.39 ps were produced, close to the transform limit, representing a key step toward compact,
Annabelle Bricout +17 more
wiley +1 more source
Deep learning enhanced terahertz imaging of silkworm eggs development. [PDF]
iScience, 2021 Xiong H +9 more
europepmc +1 more source
Photonic Systolic Array for All‐Optical Matrix–Matrix Multiplication
Laser &Photonics Reviews, EarlyView.A photonic systolic array is introduced, offering extreme parallelism in matrix‐matrix multiplication based on the synchronized movement of optical pulses along a crossbar array. Optical pulses traveling in perpendicular directions meet at freeform‐designed multiply‐accumulate units, each tailored to generate two signals whose intensity difference ...
Jungmin Kim, Qingyi Zhou, Zongfu Yu
wiley +1 more source
Beyond CT and MRI: terahertz imaging as a frontier tool for early mesothelioma diagnosis. [PDF]
Ann Med Surg (Lond)Saleem S +5 more
europepmc +1 more source