In altering the optical phonon properties, the optical properties of the ferroelectric material in the spectral range near-to the phonon mode frequency can dramatically change. This can result in a facile means to change to the optical response of the ferroelectric material in the infrared.Jon F....
There have been no correlative experiments that spatially track the modulation of phonon properties in and around nanostructures due to spatial resolution limitations of conventional optical phonon detection techniques. Here we demonstrate two-dimensional spatial mapping of phonons in a single silicon–...
Our theoretical results provide the significant insight not only for the analysis of multiphonon Raman spectroscopy in experiments, but also for the modulation of optical properties in a series of TMDS double layers and Van der Waals heterostructures. This article is protected by copyright. All ...
at the heterointerfaces. Through the doping modulation of carrier polarity in SiP2or its heterostructures, rich excitonic physics with exotic dynamic behaviour can be realized in this material platform, such as interlayer excitons and Moiré excitons with tunable dimensionality. Furthermore, the ...
44 、The modulation of SBS pulse shape tends to occur with a shortphononlifetime.───声子寿命越短,SBS波形前沿就越陡,并且越容易出现调制现象。 45 、mean number of opticalphonon───光学声子平均数 46 、Norlinear Phonon Localized States in a One-dimensional Lattice───一维简单晶格声子非线性...
The core idea of phonon engineering is to adjust the phonon dispersion in order to control phonon transport, and further realize the modulation of a certain performance. In this review, thermal phonon engineering is mainly discussed. In 1929, the concept of ‘elastic quanta’ was introduced by ...
Synergistically optimized electron and phonon transport in high-performance copper sulfides thermoelectric materials via one-pot modulation Optimizing thermoelectric conversion efficiency requires the compromise of electrical and thermal properties of materials, which are hard to simultaneously... YX Zhang,QY Hu...
Precise measurements of the magnetophonon effect in n-InSb are made by making use of a magnetic field modulation and phase sensitive second harmonic detection technique. Obtained data show an excellent signal to noise ratio and up to the... K Kasai,T Shirakawa,C Hamaguchi - 《Journal of the...
(polarized parallel to the LO mode). Changing the wavelength and polarization of the pump laser can lead to the excitation of different phonon modes and lead to significant modulation of the HHG spectra. Excitation of either the TO or LO mode leads to noticeable modifications of the high-...
Non-reciprocal photonics based on time modulation. Nat. Photon. 11, 774–783 (2017). Article ADS CAS Google Scholar Peterson, G. A. et al. Demonstration of efficient nonreciprocity in a microwave optomechanical circuit. Phys. Rev. X 7, 031001 (2017). Google Scholar Bernier, N. R. et...