<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">A. Davie</style></author><author><style face="normal" font="default" size="100%">F. Vandrevala</style></author><author><style face="normal" font="default" size="100%">S. Dampf</style></author><author><style face="normal" font="default" size="100%">Y. Deng</style></author><author><style face="normal" font="default" size="100%">D. K. George</style></author><author><style face="normal" font="default" size="100%">E. D. Sylvester</style></author><author><style face="normal" font="default" size="100%">T. Korter</style></author><author><style face="normal" font="default" size="100%">E. Einarsson</style></author><author><style face="normal" font="default" size="100%">J. B. Benedict</style></author><author><style face="normal" font="default" size="100%">A. G. Markelz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Phonon Kinetics of Fructose at the Melting Transition</style></title><secondary-title><style face="normal" font="default" size="100%">J. Phys. Chem. C</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2021</style></year></dates><volume><style face="normal" font="default" size="100%">125</style></volume><pages><style face="normal" font="default" size="100%">12269-12276</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p class=&quot;rtejustify&quot;&gt;Terahertz time domain spectroscopy (THz TDS) is used to measure the melting kinetics of fructose molecular crystals. Combining single-crystal anisotropy measurements with density functional calculations, we assign the phonon frequencies and interrogate how specific phonons behave with melting. While nearly all the low-frequency phonons continuously red-shift with heating and melting, the lowest-energy phonon polarized along the c-axis blue-shifts at the melting temperature, suggesting an initial structural change immediately before melting. We find that the kinetics follow a 3D growth model with large activation energies, consistent with previous differential scanning calorimetry (DSC) measurements. The large activation energies indicate that multiple H-bonds must break collectively for the transition. The results suggest the generality of the kinetics for molecular crystals and that THz TDS with picosecond resolution could be used to measure ultrafast kinetics.&lt;/p&gt;

&lt;p&gt;&amp;nbsp;&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">22</style></issue><section><style face="normal" font="default" size="100%">12269</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>10</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">A. G. Markelz</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">High field pulsed terahertz measurements of nonlinear conductivity</style></title><secondary-title><style face="normal" font="default" size="100%">Nonlinear Optics: Materials, Fundamentals, and Applications</style></secondary-title><short-title><style face="normal" font="default" size="100%">Nonlinear Optics: Materials, Fundamentals, and Applications. Technical Digest. Postconference Edition. TOPS Vol.46 (IEEE Cat. No.00CH37174)</style></short-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">0.5 THz</style></keyword><keyword><style  face="normal" font="default" size="100%">2D electron gases</style></keyword><keyword><style  face="normal" font="default" size="100%">Conductivity measurement</style></keyword><keyword><style  face="normal" font="default" size="100%">electrical conductivity measurement</style></keyword><keyword><style  face="normal" font="default" size="100%">Electron emission</style></keyword><keyword><style  face="normal" font="default" size="100%">FEL measurements</style></keyword><keyword><style  face="normal" font="default" size="100%">Finite impulse response filter</style></keyword><keyword><style  face="normal" font="default" size="100%">high field pulsed terahertz measurements</style></keyword><keyword><style  face="normal" font="default" size="100%">high field pulsed terahertz spectroscopy</style></keyword><keyword><style  face="normal" font="default" size="100%">high-speed optical techniques</style></keyword><keyword><style  face="normal" font="default" size="100%">inplane nonlinear conductivity response</style></keyword><keyword><style  face="normal" font="default" size="100%">LO phonon bottleneck weakening</style></keyword><keyword><style  face="normal" font="default" size="100%">nonlinear conductivity</style></keyword><keyword><style  face="normal" font="default" size="100%">nonlinear optics</style></keyword><keyword><style  face="normal" font="default" size="100%">phonons</style></keyword><keyword><style  face="normal" font="default" size="100%">Power measurement</style></keyword><keyword><style  face="normal" font="default" size="100%">Pulse measurements</style></keyword><keyword><style  face="normal" font="default" size="100%">Resonance</style></keyword><keyword><style  face="normal" font="default" size="100%">semiconductor quantum wells</style></keyword><keyword><style  face="normal" font="default" size="100%">spectroscopy</style></keyword><keyword><style  face="normal" font="default" size="100%">Submillimeter wave measurements</style></keyword><keyword><style  face="normal" font="default" size="100%">submillimetre wave spectroscopy</style></keyword><keyword><style  face="normal" font="default" size="100%">two dimensional electron gases</style></keyword><keyword><style  face="normal" font="default" size="100%">two-dimensional electron gas</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2000</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2000</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://ieeexplore.ieee.org/document/883591/authors#authors</style></url></web-urls></urls><edition><style face="normal" font="default" size="100%">Postconference</style></edition><pub-location><style face="normal" font="default" size="100%">Kaua&#039;i-Lihue, HI, USA</style></pub-location><volume><style face="normal" font="default" size="100%">46</style></volume><pages><style face="normal" font="default" size="100%">105 - 106</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;High field pulsed terahertz spectroscopy is used to measure the inplane nonlinear conductivity response of two dimensional electron gases. Results are compared to FEL measurements suggesting LO phonon bottleneck weakening at 0.5 THz.&lt;/p&gt;</style></abstract></record></records></xml>