Acquisition of Instrumentation for the Study of Nonlinear Nanoscale Localization and for Student Training

这是一个奖项，康奈尔大学收购仪器研究非线性纳米定位和学生培训。将购买一台带有相关探测器的泵浦-探测宽带光谱仪，以建立一个新的实验平台，用于经典和量子反铁磁体中自旋波的内在非线性纳米尺度局域化的产生和研究。 这台仪器将使在C（2）CuCl_4和其它反铁磁体中产生大频率范围内的内禀定域自旋波成为可能。它还将允许这些纳米级物体的时间依赖性和运输研究下降到毫秒和亚毫秒的时间制度。 高功率和大调谐范围是这种专门仪器的基本特征，用于实验研究凝聚态物理中新的基本纳米尺度局域化现象。一般的物理特性，这种定位在周期性晶格只取决于非线性加上离散性，确保研究生和本科生在这一领域工作将有培训的非线性动力学与应用跨越各种长度尺度，从纳米到宏观的。这是一个奖项，康奈尔大学的收购仪器，研究非线性纳米局域化和学生培训。这个实验仪器的目的是通过探索原子晶格中的大振幅纳米级激发来探索非线性周期物理系统动力学的潜在简单性。 这项工作预计将影响非线性动力学的其他发展领域，包括非线性光子晶体波导中光开关的固有局部电磁模式，周期性约瑟夫森结阵列中的固有局部化，微机电系统中的机械局部化，具有周期性谐振器阵列的空气填充管中的能量声学局部化，以及在最大尺度上，高能加速器中多束团模的非线性局域化。 在这个新的研究领域工作的研究生和本科生将在凝聚态非线性动力学方面进行培训，其应用涉及技术上重要的长度尺度。

This is an award to Cornell University for the acquisition of instrumentation to study nonlinear nanoscale localization and student training. A pump-probe broad band spectrometer with associated detectors will be purchased to build a new experimental platform for the production and investigation of intrinsic nonlinear nanoscale localization of spin waves in both classical and quantum antiferromagnets. This instrument will make possible both the production of intrinsic localized spin waves in C(2)CuCl4 and other antiferromagnets over a large frequency region. It will also permit time dependent and transport studies of these nanoscale objects down to the milliseconds and sub-milliseconds time regimes. Both the high power and the large tuning range are essential features of this specialized instrumentation for the experimental investigation of a new fundamental nanoscale localization phenomenon in condensed matter physics. The general physical feature that such localization in periodic lattices depends only on nonlinearity plus discreteness ensures that graduate and undergraduate students working in this area will have training in nonlinear dynamics with applications spanning a variety of length scales, ranging from the nano- to the macroscopic ones.This is an award to Cornell University for the acquisition of instrumentation to study nonlinear nanoscale localization and student training. This experimental instrumentation is directed at probing the underlying simplicity of the dynamics of nonlinear periodic physical systems by exploring large amplitude nanoscale excitations in atomic lattices. The work is expected to influence other developing areas of nonlinear dynamics including intrinsic localized electromagnetic modes in optical switches in nonlinear photonic crystal waveguides, intrinsic localization in periodic Josephson junction arrays, mechanical localization in micro-electrical-mechanical systems, acoustic localization of energy in an air filled tube with a periodic array of resonators and, at the largest scale, the nonlinear localization within multibunch modes in high energy accelerators. Graduate and undergraduate students working in this new research area will have training in condensed matter nonlinear dynamics with applications involving technologically important length scales.