Phased-Based Second-Order Nonlinear Optics For Optical Processing

9320308斯蒂格曼提出了一个广泛的研究计划。1)从实验和理论上建立了级联的基本物理基础；2)制作了适用于实现级联效应的光波导；3)研究了光晶体管所需的全光特性，如光波导中的调制、增益等；4)研究了利用波导级联实现的全光开关。该实验计划将在块状介质和波导中实施。我们将首先使用高斯光束研究大块晶体中的级联相互作用，以建立基础科学。标准的二阶晶体将被使用，并将需要高功率激光器(我们有)。同时，我们的极化聚合物波导技术将朝着相位匹配倍频方向发展。然后，使用这种波导，我们将研究低功率级联操作，工作在光学晶体管上。PI们预计，三年后，他们应该能够评估级联方法是否对一般的信号处理有用，特别是对光学晶体管。***

9320308 Stegeman A broad research program is proposed. 1) Establish experimentally and theoretically the basic physics of cascading; 2) Fabricate waveguides suitable for implementing cascading effects; 3) Investigate all-optical features needed for an optical transistor such as modulation, gain etc. in waveguides; 4) Investigate all- optical switching using cascading in waveguides. The experimental program will be implemented in both bulk media and waveguides. Cascading interactions will first be studied in bulk crystals using Gaussian beams to establish the basic science. Standard second order crystals will be used and will require high power lasers (which we have). In parallel our poled polymer waveguide technology will be developed towards phase-matched SHG. Then, using such waveguides we will investigate low power cascading operations, working towards an optical transistor. The PI's expect that after three years they should be able to assess whether the cascading approach is useful for signal processing in general, and an optical transistor in particular. ***