Results 111 to 120 of about 3,740 (211)

Non‐Uniform Programmable Photonic Waveguide Meshes

Laser &Photonics Reviews, EarlyView.
Integrating defect cells into uniform hexagonal waveguide meshes overcomes the fundamental spectral and temporal limitations of programmable photonics. By leveraging the Vernier effect through non‐uniform coupled cavities, this architecture achieves a tenfold increase in free spectral range and ultra‐fast sampling times, paving the way for next ...
Cristina Catalá‐Lahoz, José Capmany
wiley   +1 more source

Evaluation of Fossil Amber Birefringence and Inclusions Using Terahertz Time-Domain Spectroscopy. [PDF]

Polymers (Basel), 2022
Clark AT, D'Anna S, Nemati J, Barden P, Gatley I, Federici J.   +5 more
europepmc   +1 more source

Multimode Phonon Lasing via Self‐Induced Optical Coherent Pumping

Laser &Photonics Reviews, EarlyView.
A silicon optomechanical nanobeam generates self‐sustained phonon lasing in multiple competing mechanical modes via self‐pulsing, an intrinsic optical modulation arising from cavity nonlinearity. This self‐organized mechanism enables robust multi‐frequency operation spanning periodic, quasi‐periodic, and chaotic regimes without external modulation. The
David Alonso Tomás, Carlos Mas Arabí, Carles Milián, Néstor E. Capuj, Alejandro Martínez, Daniel Navarro Urrios   +5 more
wiley   +1 more source

Broadband and Intense Terahertz Time-Domain Spectroscopy for Investigating Liquid Solutions

Liquids
Over the past two decades, terahertz (THz) spectroscopy has demonstrated remarkable potential for the investigation of liquids, including studies of living organisms and biological components in their natural, aqueous environments. The main advantages of
Domenico Paparo, Anna Martinez, Andrea Rubano   +2 more
doaj   +1 more source

Characterization of the remediation of chromium ion contamination with bentonite by terahertz time-domain spectroscopy. [PDF]

Sci Rep, 2022
Cheng H, Huang HC, Yang MF, Yang MH, Yan H, Panezai S, Zheng ZY, Zhang Z, Zhang ZL.   +8 more
europepmc   +1 more source

Three‐Dimensional Optical Characterization of Magnetostrictive Deformation in Magnomechanical Systems

Laser &Photonics Reviews, EarlyView.
An optical approach is proposed for real‐time and high‐precision detection of the magnetostrictive deformation of an yttrium‐iron‐garnet sphere in three dimensions, based on the deformation induced spatial high‐order modes of the scattered field, postselection, and balanced homodyne detection.
Xiaomin Liu, Jing Zhang, Jie Li, Rongguo Yang, Jiangrui Gao, Tiancai Zhang   +5 more
wiley   +1 more source

THz Gas Sensing Using Terahertz Time-Domain Spectroscopy with Ceramic Architecture. [PDF]

ACS Omega, 2022
Komatsu K, Iwamoto T, Ito H, Saitoh H.
europepmc   +1 more source

Resonant States Reveal Strong Light–Matter Coupling in Nanophotonic Cavities

Laser &Photonics Reviews, EarlyView.
Photonic resonant states reveal characteristics of coupled light–matter systems that would otherwise be hidden by damping. Their trajectories (when tuning the optical resonance) undergo a qualitative change at the onset of strong coupling: They start swapping positions.
Jan David Fischbach, Sergei Gladyshev, Adrià Canós Valero, Markus Nyman, Thomas Weiss, Carsten Rockstuhl   +5 more
wiley   +1 more source

Assessing Corneal Endothelial Damage Using Terahertz Time-Domain Spectroscopy and Support Vector Machines. [PDF]

Sensors (Basel), 2022
Chen A, Harris ZB, Virk A, Abazari A, Varadaraj K, Honkanen R, Arbab MH.   +6 more
europepmc   +1 more source

Terahertz Time-Domain Spectroscopy

, 2012
The field of terahertz time-domain spectroscopy (THz-TDS) is still far from reaching its full potential, but is a very promising utility for a wide range of applications. Principle experiments have been performed in fields of drug screening, pharmaceutical, medical diagnostics, security imaging and detection of explosives. Optimized and adapted THz-TDS
openaire   +1 more source