Results 1 to 10 of about 108,805 (248)
Mid-infrared parametric wavelength conversion seeded with fiber optical parametric sources [PDF]
A new method of seeding X2 optical parametric converters with X3 fiber optical parametric sources is introduced. We demonstrate a tunable mid-infrared source operating at around 3 µm with the technique and discuss the potential of this architecture.
Battle Ronan A. +6 more
doaj +1 more source
Varying pre-plasma properties to boost terahertz wave generation in liquids
Terahertz frequency radiation provides a powerful tool for the investigation of matter from the life science to the solid state and plasmas. The authors experimentally and numerically present enhanced terahertz wave generation by single-color double ...
Evgenia A. Ponomareva +5 more
doaj +1 more source
High-intensity optical radiation propagation in a transparent dielectric medium causes the phenomena of pulse self-action and radiation generation at triple frequencies due to the cubic nonlinearity of the medium.
Ilya Artser +5 more
doaj +1 more source
Controlled Spintronic Emitter of THz Radiation on an Atomically Thin WS2/Silicon Substrate
The control and monitoring of the polarization of terahertz radiation are of interest for numerous applications. Here we present a simple controllable THz emitter with a small coercive magnetic field.
Arseniy Buryakov +7 more
doaj +1 more source
Corneal astigmatic outcomes after femtosecond laser-assisted cataract surgery combined with surface penetrating arcuate keratotomies [PDF]
AIM: To evaluate corneal astigmatic outcomes of femtosecond laser-assisted arcuate keratotomies (FAKs) combined with femtosecond-laser assisted cataract surgery (FLACS) over 12mo follow-up.
Nick Stanojcic +7 more
doaj +1 more source
High Field Single- to Few-Cycle THz Generation with Lithium Niobate
The transient terahertz (THz) pulse with high peak field has become an important tool for matter manipulation, enabling many applications such as nonlinear spectroscopy, particle acceleration, and high harmonic generation.
Xing Zhu +3 more
doaj +1 more source
Summary: Ultrafast THz radiation generation from ferromagnetic/nonmagnetic (FM/NM) spintronic heterostructures generally exploits the spin-charge conversion within the nonmagnetic layer and its interface with the ferromagnetic layer. Various possible sub-
Sandeep Kumar, Sunil Kumar
doaj +1 more source
Estimations of Low-Inertia Cubic Nonlinearity Featured by Electro-Optical Crystals in the THz Range
Despite the growing interest in nonlinear devices and components for light by light control in the terahertz range, there is a shortage of such materials and media used for these purposes.
Maria Zhukova +4 more
doaj +1 more source
Optical damage limit of efficient spintronic THz emitters
Summary: THz pulses are generated from femtosecond pulse-excited ferromagnetic/nonmagnetic spintronic heterostructures via inverse spin Hall effect. The highest possible THz signal strength from spintronic THz emitters is limited by the optical damage ...
Sandeep Kumar +7 more
doaj +1 more source
Ultrafast THz probing of nonlocal orbital current in transverse multilayer metallic heterostructures
THz generation from femtosecond photoexcited spintronic heterostructures has become a versatile tool for investigating ultrafast spin-transport and transient charge-current in a non-contact and non-invasive manner.
Sandeep Kumar, Sunil Kumar
doaj +1 more source

