Results 171 to 180 of about 44,433 (290)

Single-pulse terahertz spectroscopy monitoring sub-millisecond time dynamics at a rate of 50 kHz. [PDF]

Nat Commun, 2023
Couture N, Cui W, Lippl M, Ostic R, Fandio DJJ, Yalavarthi EK, Vishnuradhan A, Gamouras A, Joly NY, Ménard JM.   +9 more
europepmc   +1 more source

Terahertz All‐Dielectric Maxwell Fisheye Lens Waveguide Crossings via Transformation Optics

Laser &Photonics Reviews, EarlyView.
All‐silicon terahertz waveguide crossings based on Maxwell fisheye lenses are reshaped using transformation optics to interface with planar waveguides while reducing mode mismatch. Realized via subwavelength perforations in a single etching step, 2 × 2 and 3 × 3 crossings achieve broadband transmission with low loss and ultralow crosstalk across 220 ...
Nikolaos Xenidis, Joachim Oberhammer, Dmitry Lioubtchenko   +2 more
wiley   +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

Laser Stabilized to a Fiber Interferometer With Close‐To‐Zero Temperature Sensitivity

Laser &Photonics Reviews, EarlyView.
A laser stabilized to a hollow‐core fibre interferometer is presented. The interferometer is designed to have near‐zero temperature phase‐sensitivity. Laser stabilized to this interferometer put in a non‐vacuum environment achieves ±550 kHz frequency variation over 100 h and an Allan deviation of 2 × 10−14τ, which is comparable to miniature ULE ...
Bo Shi, Irene Barbeito Edreira, Meng Ding, Zitong Feng, Win Indra, Francesco Poletti, Giuseppe Marra, Radan Slavík   +7 more
wiley   +1 more source

Terahertz Spectroscopy for Non-Destructive Solid-State Investigation of Norfloxacin in Paper Tablets after Wet Granulation. [PDF]

Pharmaceutics, 2023
Heidrich L, Abdelkader A, Ornik J, Castro-Camus E, Keck CM, Koch M.   +5 more
europepmc   +1 more source

Mode‐Locked Pulse Generation in Plasmonic Lattices

Laser &Photonics Reviews, EarlyView.
The plasmonic superlattices overlaid with optically pumped organic molecules produce multimode lasing due to mid‐range radiative coupling (MR‐RC, lambda) and long‐range radiative coupling (LR‐RC, 10 lambda). Right: The mode locking emerges spontaneously due to the shared excited state molecular populations which may emit photons to various different ...
Janne I. Heikkinen, Roman Calpe, Laura Yrjänheikki, Atri Halder, Antti J. Moilanen, Matias Koivurova, Tommi K. Hakala   +6 more
wiley   +1 more source

Ultrafast Photocarrier Dynamics in Vertically Aligned SnS₂ Nanoflakes Probing with Transient Terahertz Spectroscopy. [PDF]

Nanomaterials (Basel), 2022
Zhang W, Sun K, Suo P, Yan X, Lin X, Jin Z, Ma G.   +6 more
europepmc   +1 more source

Terahertz (THz) Spectroscopy: A Cutting‐Edge Technology

, 2017
William Ghann, Jamal Uddin
openalex   +2 more sources

Optical Coherence Tomography for High‐Precision Industrial Inspection in Industry 4.0: Advances, Challenges, and Future Trends

Laser &Photonics Reviews, EarlyView.
This review examines how optical coherence tomography transforms industrial inspection by delivering real‐time, micrometer‐resolution, depth‐resolved imaging. It surveys applications across display manufacturing, thin films, microelectronics, laser processing, and coatings, evaluates performance against conventional techniques, and highlights emerging ...
Nipun Shantha Kahatapitiya, Sm Abu Saleah, Daewoon Seong, Naresh Kumar Ravichandran, Sangyeob Han, Ruchire Eranga Wijesinghe, Mansik Jeon, Jeehyun Kim   +7 more
wiley   +1 more source

Subsurface Fracture Mapping in Adhesive Interfaces Using Terahertz Spectroscopy. [PDF]

Materials (Basel)
Singh M, Karmarkar S, Herbsommer M, Yoon S, Tomar V.   +4 more
europepmc   +1 more source