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High-harmonic spectroscopy probes lattice dynamics
The probing of coherent lattice vibrations in solids has conventionally been carried out using time-resolved transient optical spectroscopy, with...
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High-order harmonic generation in a doped semiconductor by inhomogeneous laser field
High order harmonic generation has emerged as a reliable method in spectroscopy, production of high frequency light and attosecond pulses. Since its...
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Influence of beam waist radius and initial phase on spectrum and spatial spectrum
Based on Thomson scattering classical theory and single-electron model, we study the spatial spectrum and spectrum of laser driven high-energy...
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Topological high-harmonic spectroscopy
Linearly polarized vector beams are structured lasers whose topology is characterized by a well-defined Poincaré index, which is a topological...
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On the Possibility of Controlling the Second Harmonic Radiation of the Free Electron Laser Using the Second Harmonic of the Undulator Field
AbstractThe second harmonic radiation of a single-pass free electron laser (FEL) and its dependence on the second harmonic of the undulator field are...
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Entanglement of harmonic systems in squeezed states
The entanglement entropy of a free scalar field in its ground state is dominated by an area law term. It is noteworthy, however, that the study of...
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Green second-harmonic generation in a periodically poled planar GaN waveguide
We demonstrate a broadband second-harmonic generator for the green spectral range based on a periodical polarity GaN waveguide structure. We grew the...
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A chip-scale second-harmonic source via self-injection-locked all-optical poling
Second-harmonic generation allows for coherently bridging distant regions of the optical spectrum, with applications ranging from laser technology to...
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Momentum-dependent intraband high harmonic generation in a photodoped indirect semiconductor
Nonlinear optical response of solid-state materials exposed to strong non-resonant light fields leads to the generation of harmonic frequencies as a...
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Phase Properties of High Harmonics and Spatial Structure of the Harmonic Beam
AbstractThe harmonic phase dependence on the laser field intensity is one of the key properties of high-harmonic generation (HHG) in intense laser...
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Generation of Reflected Second Harmonic at Semiconductor Quantum Dots
Generation of the reflected second harmonic has been observed for the first time in a composite material: a glass matrix containing microscopic CdSe...
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Intense ultraviolet–visible–infrared full-spectrum laser
A high-brightness ultrabroadband supercontinuum white laser is desirable for various fields of modern science. Here, we present an intense...
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Third-Harmonic Generation in Plasmonic Metasurfaces Fabricated by Direct Femtosecond Laser Printing
Direct ablation-free femtosecond laser printing has been used to fabricate a metasurface in the form of ordered arrays of hollow nanobumps on the...
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Optimization of cut-off frequency in high harmonic generation in noble gas
High harmonic generation is a phenomenon that occurs when an atom is subjected to a strong laser field. The laser field must have an intensity of at...
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Highly Efficient Third Harmonic Generation in Quadratic and Cubic Nonlinear Media by Cascaded Second Harmonic Generation
AbstractWe report on a new highly efficient method for frequency tripling of optical waves based on cascaded secondharmonic generation in a medium...
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Harmonic distortion calibrator: additional uncertainty due to distortion in the measurement cable
Reference-level measuring instruments (working standards of the first and second digits) play a role in ensuring the uniformity of measurements of...
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Morris–Thorne-type wormhole with a cosmic string effects on harmonic oscillator problem
In this study, we explore quantum dynamics of non-relativistic particles within the context of a Morris–Thorne-type wormhole space-time featuring a...
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Observation of topologically enhanced third harmonic generation in doubly resonant nonlinear topolectrical circuits
The ability to confine and guide wave makes topological physics a promising platform for large local field enhancement and strong scattering...
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High Sensitivity Temperature Sensor Based on Harmonic Vernier Effect
A high-sensitivity temperature sensor based on the harmonic Vernier effect is proposed and verified by experiments. The main component of the sensor...
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Studying third harmonic generation in spherical quantum dot under inversely quadratic Hellmann potential
In this paper, we have reported the computation of the third harmonic generation of GaAs spherical quantum dot under the action of inversely...
