Infrared Studies of Oxide Superconductors

9403894 Tanner技术摘要：将研究高温超导体在远红外-紫外光频率下的光学性质--在正常和超导态下。在正常情况下，研究的重点是非Drude中红外吸收的性质、载流子的寿命和相互作用以及准二维氧化铜薄膜的各向异性。在超导态，研究将集中在超导能隙、可能的各向异性以及准粒子激发的寿命等问题上。非技术摘要：对高温超导体光学性质的详细研究对于完全理解这些非常新颖的材料是必不可少的。通过改变光的波长，从长波红外线到紫外光，关于电荷载流子运动的信息-无论是在这些材料的正常状态还是在超导状态-都将被了解。这些信息可能有助于理解这些材料的超导电性，并将有助于表征它们在微波电路和红外传感器等潜在应用中的有用性。***

9403894 Tanner Technical abstract: The optical properties-in both normal and superconducting states-of high temperature superconductors will be studied at far infrared-ultraviolet frequencies. In the normal state, the research will focus on the nature of the non-Drude mid infrared absorption, on the lifetime and interaction of the charge carriers, and on the anisotropy of the quasi-two-dimensional copper oxide layers. In the superconducting state, the research will focus on issues of the superconducting energy gap, on possible anisotropy of the gap, and on the lifetime of quasiparticle excitations. Non-technical abstract: Detailed investigation of the optical properties of the high temperature superconductors is essential for a complete understanding of these very novel materials. By varying the wavelength of the light from the long-wavelength infrared to the ultraviolet, information about the motion of the charge carriers-in both the normal and the superconducting state of theses materials- will be learned. This information may contribute to understanding the superconductivity in these materials and will help to characterize their usefulness for potential applications such as in microwave circuits and infrared sensors. ***