Results 141 to 150 of about 78,535 (255)

Nano‐Raman Spectroscopy of Tellurium Nanowires

Journal of Raman Spectroscopy, EarlyView.
Nano‐Raman evidences a diameter dependence of the peak position, among different tellurium nanowires and along the single species. ABSTRACT Tellurium‐based nanowires are interesting structures for applications in low‐dimensional electronics. This work investigates the vibrational dynamics of trigonal tellurium (t‐Te) nanowires through tip‐enhanced ...
Diego Sier, Rafael Nadas, André G. Pereira, Gabriel Tomaz Massardi, Erika Peixoto Pimenta, Sukarno Olavo Ferreira, Eduardo Nery Duarte Araujo, Ado Jorio   +7 more
wiley   +1 more source

100th Anniversary of Brillouin Scattering: Impact on Materials Science. [PDF]

Materials (Basel), 2022
Kojima S.
europepmc   +1 more source

Probing Metal Tip‐Induced Bond Weakening of a Reactive Alkyne Center Aligned via a Rigid Triphenylmethane‐Based Tripod on Au(111) by TERS and DFT

Journal of Raman Spectroscopy, EarlyView.
We investigate tip‐induced bond weakening of a single alkyne center immobilized and aligned upright on Au(111) using a rigid triphenylmethane‐based tripod. By varying the tip–molecule distance, we observe shifts in the ≡C–H and –C≡C– vibrational bands via ultrahigh vacuum low‐temperature tip‐enhanced Raman scattering (TERS).
Gang Li, Simon Mennicken, Lu‐Yao Zhu, Sadaf Ehtesabi, Till Reichenauer, Stephan Kupfer, Daniel Schäfer, Saber Mehrparvar, Gebhard Haberhauer, Yao Zhang, Stefanie Gräfe, Sebastian Schlücker, Zhen‐Chao Dong   +12 more
wiley   +1 more source

Nonreciprocal vortex isolator via topology-selective stimulated Brillouin scattering. [PDF]

Sci Adv, 2022
Zeng X, Russell PSJ, Wolff C, Frosz MH, Wong GKL, Stiller B.   +5 more
europepmc   +1 more source

Comparison of Enamel, Dentin, and the Dentin–Enamel Junction in Horse, Dog, Wild Boar, and Macaque Using Confocal Raman Microscopy

Journal of Raman Spectroscopy, EarlyView.
Confocal Raman microscopy was used to map the dentin–enamel junction (DEJ) across four mammalian species. Chemical maps highlighted variations in mineral (phosphate/carbonate) and organic (amide/CH) phase. These results provide a comparative Raman framework to link tooth microchemistry with species‐specific structure and function.
Alban Desoutter, Fredéric Cuisinier, Marc Zindel, Pierre‐Yves Collart‐Dutilleul, Richard Younes   +4 more
wiley   +1 more source

Guided-acoustic stimulated Brillouin scattering in silicon nitride photonic circuits. [PDF]

Sci Adv, 2022
Botter R, Ye K, Klaver Y, Suryadharma R, Daulay O, Liu G, van den Hoogen J, Kanger L, van der Slot P, Klein E, Hoekman M, Roeloffzen C, Liu Y, Marpaung D.   +13 more
europepmc   +1 more source

Recent Advances in Photonic Bound States in the Continuum: From Fundamentals to Engineering and Implementation

Laser &Photonics Reviews, EarlyView.
This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley   +1 more source

Engineering Topological Phases with a Traveling‐Wave Spacetime Modulation

Laser &Photonics Reviews, EarlyView.
Time‐varying systems have garnered considerable attention due to their unique potential in manipulating electromagnetic waves. Here, a novel class of topological spacetime crystals with a traveling‐wave modulation is introduced. By manipulating material anisotropy, one can engineer light angular momentum and non‐trivial topological phases characterized
João C. Serra, Mário G. Silveirinha
wiley   +1 more source

Application of digital technique to the spectral analysis of Mandelshtam-Brjllouin scattered light

Archives of Acoustics, 2015
The experimentally recorded Mandelshtam-Brillouin type light scattering function is in general a convolution of the real scattering function and the overall instrumental function, accounting for all the deformations introduced by the measuring ...
Tomasz HORNOWSKI, Mikołaj ŁABOWSKI
doaj  

Brillouin Scattering and First-Principles Studies of BaMO₃ (M = Ti, Zr, and Cu) Perovskites. [PDF]

Materials (Basel), 2022
Helal MA, Kojima S.
europepmc   +1 more source