1. Application of sSNOM and Multidimensional Characterization to Reveal Nanoscale Properties of 2D Materials and Their van der Waals Heterostructures Restricted (Penn State Only) Author: Li, Xinyi Title: Application of sSNOM and Multidimensional Characterization to Reveal Nanoscale Properties of 2D Materials and Their van der Waals Heterostructures Graduate Program: Engineering Science and Mechanics (PHD) Keywords: sSNOMmultidimensional imaging2D materialsvan der Waals Heterostructurespolaritons File: Login to Download Committee Members: Albert Segall, Program Head/ChairMichael Lanagan, Major Field MemberSlava Rotkin, Chair & Dissertation AdvisorSaptarshi Das, Major Field MemberTetyana Ignatova, Special MemberJoan Redwing, Outside Unit & Field Member