Acquisition of 20 Tesla Magnet System

一个20特斯拉超导磁体系统和一个傅立叶变换红外（FT-IR）光谱仪将由学术研究基础设施计划获得资金。该磁体系统将与加州大学圣巴巴拉分校的自由电子激光器、飞秒光学实验室、现有的稀释冰箱和FT-IR光谱仪一起用于探索科学和技术重要系统中的非线性和线性磁光学和磁输运。主要研究方向为：半导体中与量子阱和超晶格相关的太赫兹非线性磁输运；半导体纳米结构在大磁场下的饱和和弛豫高温超导体涡旋芯的线性和非线性光谱研究自组织量子点的磁谱学研究量子线超晶格光谱学；自旋超晶格中的磁发光和磁吸收实验介观结构中的量子霍尔效应以及导电聚合物中的磁输运和金属-绝缘体跃迁。获得的20特斯拉超导磁体系统，与自由电子激光器，飞秒光学实验室，现有稀释冰箱和新获得的傅立叶变换红外光谱仪一起使用，将用于研究涉及半导体超晶格，量子阱和量子点以及高温超导体，一维导电聚合物和自旋超晶格的磁光和磁输运领域的一系列主题。

A 20 Tesla superconducting magnet system and a Fourier Transform Infrared (FT-IR) spectrometer will be acquired with funds from the Academic Research Infrastructure Program. The magnet system will be utilized in conjunction with the UC-Santa Barbara free-electron laser, a femto-second optical laboratory, an existing dilution refrigerator, and the FT-IR spectrometer to explore nonlinear and linear magneto-optics and magneto-transport in scientifically and technologically important systems. The research focuses on: nonlinear magneto-transport in the terahertz frequency regime associated with quantum wells and superlattices in semiconductors; saturation and relaxation in semiconductor nanostructures in large magnetic field; linear and nonlinear spectroscopy of vortex cores in high temperature superconductors; magneto-spectroscopy of self-organized quantum dots; spectroscopy of quantum wire superlattices; magneto-luminescence and magneto-absorption experiments in spin-superlattices; quantum hall effects in mesoscopic structures; and magneto-transport and the metal-insulator transition in conducting polymers. An acquired 20 Tesla superconducting magnet system, used in conjunction with a free-electron laser, a femto-second optical laboratory, an existing dilution refrigerator, and a new acquired Fourier transform infrared spectrometer, will be used to study a range of topics in the magneto-optic and magneto-transport areas concerning semiconductor superlattices, quantum wells and quantum dots as well as high temperature superconductors, one-dimensional conducting polymers, and spin superlattices.