Results 41 to 50 of about 708,136 (308)

High Magnetic Sensitivity at the Coercive Field Induced by Shear Horizontal SAW in Polycrystalline FeGa Films

open access: yesAdvanced Materials Technologies, EarlyView.
A theoretical framework links stress‐induced changes in the Young's modulus of Fe₇₂Ga₂₈ layers to their magnetization dynamics under SH‐SAW excitation. This interaction produces a sharp sensor response near the coercive field, highlighting FeGa's magnetoelastic sensitivity.
Juan Diego Aguilera   +9 more
wiley   +1 more source

A Laplace transform approach to the quantum harmonic oscillator [PDF]

open access: yes, 2012
The one-dimensional quantum harmonic oscillator problem is examined via the Laplace transform method. The stationary states are determined by requiring definite parity and good behaviour of the eigenfunction at the origin and at infinity.
D. R. M. Pimentel, A. D. de Castro
semanticscholar   +1 more source

Unveiling Ultrafast Spin‐Valley Dynamics and Phonon‐Mediated Charge Transfer in MoSe2/WSe2 Heterostructures

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This study reveals the potential to manipulate spin‐valley polarization dynamics in MoSe2/WSe2 heterostructures by quantifying different scattering processes following selective photoexcitation. The results show that these heterostructures enable ultrafast valley‐selective charge transfer, with phonon scattering playing a significant role in the ...
Julian Wagner   +9 more
wiley   +1 more source

Quantum uncertainty relation saturated by the eigenstates of the harmonic oscillator [PDF]

open access: yes, 2012
We rederive the Schrodinger-Robertson uncertainty principle for the position and momentum of a quantum particle. Our derivation does not directly employ commutation relations, but works by reduction to an eigenvalue problem related to the harmonic ...
A. Mandilara, N. Cerf
semanticscholar   +1 more source

Geometric phase and nonadiabatic effects in an electronic harmonic oscillator. [PDF]

open access: yesPhysical Review Letters, 2011
Steering a quantum harmonic oscillator state along cyclic trajectories leads to a path-dependent geometric phase. Here we describe its experimental observation in an electronic harmonic oscillator.
M. Pechal   +7 more
semanticscholar   +1 more source

Nonlinear Optical Properties of Mono and Multilayer MoWSe2 Alloys

open access: yesAdvanced Optical Materials, EarlyView.
We employ second‐harmonic generation and two‐photon photoluminescence to probe the excitonic resonances and exciton binding energy in Mo(1x)WxSe2 alloys as a function of composition and layer number. Our work lays the groundwork for understanding the optical and electronic properties of TMD alloys, a crucial step toward next‐generation optoelectronic ...
Muhammad Hussain   +9 more
wiley   +1 more source

Polaritons in Non‐Fullerene Acceptors for High Responsivity Angle‐Independent Organic Narrowband Infrared Photodiodes

open access: yesAdvanced Optical Materials, EarlyView.
High‐performance narrowband NIR organic photodiodes are essential for miniaturized imaging, sensing, and wearable systems, yet existing approaches suffer from angular sensitivity and limited material compatibility. This work demonstrates the first polariton‐enhanced OPDs with angle‐independent response, sub‐45 nm bandwidth, and record responsivity (0 ...
Ahmed Gaber Abdelmagid   +7 more
wiley   +1 more source

Recent Advances in χ(2)‐Based Nonlinear Frequency Conversion of Fiber Lasers

open access: yesAdvanced Photonics Research, EarlyView.
Visible and mid‐infrared fiber lasers, enabled by nonlinear frequency conversion of fiber lasers, offer several advantages such as high efficiency, excellent wavelength tunability, high power, and superior beam quality that are highly desirable for practical applications. This study provides a comprehensive review of recent research progress in the χ(2)
Bing Han   +10 more
wiley   +1 more source

Anisotropy of Second‐Harmonic Generation in SnSe Flakes with Ferroelectric Stacking

open access: yesAdvanced Photonics Research, EarlyView.
Giant second‐harmonic generation (SHG) susceptibility, on the order of 1000 pm V−1, in SnSe with ferroelectric stacking is demonstrated by theoretical and experimental methods. SHG microscopy is utilized to study few‐layer ferroelectric SnSe flakes on mica substrates. Stripe‐like features in SHG mapping indicate ferroelectric domains. Strong wavelength‐
Li‐Tien Huang   +9 more
wiley   +1 more source

On the truncation of the harmonic oscillator wavepacket [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2005
We present an interesting result regarding the implication of truncating the wavepacket of the harmonic oscillator. We show that disregarding the non-significant tails of a function which is the superposition of eigenfunctions of the harmonic oscillator has a remarkable consequence: namely, there exist infinitely many different superpositions giving ...
Laura Rebollo-Neira, S Jain
openaire   +5 more sources

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