NSOM 2000TS Thomas Erickson

Optical/AFM picture

Optical/AFM picture

3D image AFM

3D image AFM

3D image AFM

AFM Atomic Force Microscopy Fine tips (<10 nm) Contact vs. Non-Contact Atomic Forces Versatile materials and sample preparation [1] Standard Pointprobe® [2] High Aspect Ratio Tip [3] Arrow™ [4] Pyrex-Nitride™

NSOM Near-field Scanning Optical Microscopy 200 – 50 nm aperture 5 – 10 nm from surface Resolves less than 50 nm

NSOM Image

NSOM 2000-TS Piezoelectric Tuning Fork 33,000 Hz NSOM tip

NSOM 2000-TS 2 Plates PZT Stepper Motor

Problems 2 Years of no use Fragile Probes Force feedback Stepper motor

Feedback

Initial Pictures

Optical/AFM picture

NSOM Picture

Later Pictures

Photonic Crystal Repeating Structures At similar size to the wavelength of light Create photonic band gap Create Waveguides and optical cavities

Photonic Crystal

NSOM Images

NSOM Images 440 nm BP 420 nm SP No Filter

NSOM Images No Filter 420 nm SP 440 nm BP

Acknowledgments KSU - III Nitride Group (Dr. Lin, Dr. Jiang, Chris Ugolini, Ashok Sedhain etc.) Nanonics Ltd. Dr. Weaver and Dr. Corwin NSF