Introduction

Introduction Nanoantennas • Prof. Vladimir M. Shalaev • http://cobweb.ecn.purdue.edu/~photspec NIM and fishnet structure Superlens and hyperlens Transformation optics and cloaking Prof. Vlad Shalaev

Kuo-Ping Chen (Ph.D candidate, ECE) • Research: Plasmonic Nanoantennas Design and Fabrication for Two Photon Absorption Enhancement • Specialty: nano-structure fabrication, characterization, photonics and optics/laser research Before annealing After annealing Top view Side view Kuo-Ping Chen, etc. Drude Relaxation Rate in Grained Gold Nanoantennas, Nano Letters (2010). Prof. Vlad Shalaev

Optical Limiting Optical Limiter: a device which keeps the transmitted power below some specified value. Nonlinear Power dissipation is correlated to |E4| Use the nanoantennas enhanced local field α : linear absorption coefficient (OPA) β : nonlinear absorption coefficient (2PA) Prof. Vlad Shalaev

Fabrication E-beam lithography E-beam evaporation Nanolithography Rapid Thermal Annealing Thin film Spin Coating Organic material thin-film thermal evaporation Characterization SEM AFM Surface profile XRD TEM NSOM Far-Field spectra system Spectroscopic Ellipsometer Z-scan nonlinear measurement system Tools Prof. Vlad Shalaev

Introduction

Introduction

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Introduction to introduction to introduction to … Optimization

INTRODUCTION/ INTRODUCTION

Introduction

INTRODUCTION

Introduction

Introduction