Results 91 to 100 of about 7,293,413 (288)
Ultra-broadband wavelength conversion based on four-wave mixing in a Raman DFB fiber laser
We report highly efficient four-wave mixing (FWM) within a 30cm-long centre pi phase-shifted Raman DFB fiber laser with a continuous frequency tuning range of ~19.9 THz with the FWM conversion efficiency up to ...
Shi, J.D., Ibsen, M., Alam, S.-U.
core +1 more source
Nanoconfinement‐Induced Second‐Harmonic Circular Dichroism via Chirality–Ferroelectric Coupling
Advanced Functional Materials, EarlyView.Nanoconfinement of a ferroelectric nematic liquid crystal within a chiral nanoporous sponge yields an enhanced second‐harmonic generation circular dichroism (|gSHG–CD| ≈ 1.1). Polarization‐resolved analysis suggests an additional magnetic‐dipole‐associated nonlinear contribution under nanoconfinement, highlighting chirality–ferroelectric coupling as a ...
Jae‐Jin Lee +5 more
wiley +1 more source
Pressure‐Assisted Dimensional Transformation of 2D Hydrogenated Borophene into 0D Boron Quantum Dots
Advanced Functional Materials, EarlyView.Hydrogenated borophene (HB) is transformed into distinct boron nanostructures through a solvent‐free thermal process. Under flowing nitrogen, hydrogen escape promotes reconstruction into B2O3 nanoplatelets, whereas hydrogen‐induced pressure under sealed conditions facilitates fragmentation into boron quantum dots.
Ozden Gunes Yildiz +11 more
wiley +1 more source
Accurate Molecular Structure Determination by Femtosecond Degenerate Four-Wave Mixing [PDF]
, 2006 Femtosecond degenerate four-wave mixing (fs-DFWM) is a Raman scattering type of rotational coherence spectroscopy that can be utilized for the measurement of highly accurate rotational and centrifugal constants of nonpolar molecules.
Kummli, Dominique S. +2 more
core +1 more source
Advanced Functional Materials, EarlyView.Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley +1 more source
Spurious Four-Wave Mixing Processes in Generalized Nonlinear Schrödinger Equations
, 2023 Numerical solutions of a nonlinear Schrödinger equation may suffer from the spurious four-wave mixing processes. We study how these nonphysical resonances appear in solutions of a much more stiff generalized nonlinear Schrödinger equation with an ...
Bandelow, Uwe +5 more
core +1 more source
Cascaded four-wave mixing in liquid-core optical fibers
APL PhotonicsUltrafast nonlinear interactions in optical fibers are commonly employed for generating light with tailored properties, with four-wave mixing (FWM) being a widely used mechanism.
Saher Junaid +6 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Autonomous scanning probe microscopy and multi‐objective Bayesian optimization navigate a ternary (Al,Sc,B)N combinatorial library. Registered photoluminescence, electron‐probe compositional mapping, and X‐ray diffraction connect local electromechanical function to defect‐sensitive emission, composition, and crystal structure.
Yu Liu +12 more
wiley +1 more source
Type II micro-comb based on a filter-driven four wave mixing laser
, 2017 We numerically and experimentally demonstrate the generation of Type II micro-combs in a Filter-Driven four wave mixing laser, showing that the generated Type II micro-combs are fully coherent. © OSA 2017.
Brent E. Little +16 more
core +1 more source
Phase sensitive amplification enabled by coherent population trapping
New Journal of Physics, 2018 We isolate a novel four-wave mixing process, enabled by coherent population trapping (CPT), leading to efficient phase sensitive amplification. This process is permitted by the exploitation of two transitions starting from the same twofold degenerate ...
P Neveu +5 more
doaj +1 more source