Chi Chen

Affiliation: Academia Sinica, Taiwan

Research Interests: SNOM, TERS, AFM, Spectroscopy of Single molecules and nanomaterials

Title: 
Combing Photon with SPM for STM-EL, TERS, and SNOM

Abstract: Combing optics with scanning probe microscopy (SPM) enables new possibilities of cutting – edge discoveries , such as tunneling induced electroluminescence (STM – EL), tip – enhanced Raman or photoluminescence spectroscopy (TERS/TEPL), and aperture or scattering scanning near – field optical microscopy (a – /s – SNOM). In this talk, I first introduce the basic principle of confocal optics and the light path design for tip illumination/photon collection. The instrumentation of both STM – optics and A FM – optics will be presented and compared. Three different categories of experiments are included: (1) STM – EL from single molecules and atomic chains at cryogenic temperatures and UHV environments. (2) STM – TERS of carbon nanotubes under ambient conditions. (3) AFM – SNOM of 2D materials in ambient conditions and AFM – SNOM of lipid bilayers in liquid.