Seeing Atoms & Molecules COSMOS 2008 Wilson Ho University of California, Irvine.

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Presentation transcript:

Seeing Atoms & Molecules COSMOS 2008 Wilson Ho University of California, Irvine

50,000,000 x Magnification Stock Metals Silver Atoms

Silicon(111)

The Virtue of Being Single: A Molecular View

50,000,000x Magnification Galileo, 1992 Reines Hall 3,900,000 Miles UC Irvine

Galileo

Apollo 16 – North America

Los Angeles Basin

Newport Beach - Irvine

Home of the Anteaters

Reines Hall - UCI

Tunneling Phenomenon

STM Tip

Tornado: Miami, Texas, May 29, 1994

Quantum Tunneling of Electrons

Tunneling Microscopy

Vacuum Tunneling

Topography

Silicon(111)

Principles of Modern Chemistry, 6th edition, Oxtoby, Gillis, and Campion (Thomson Brooks/Cole, 2007).

Houghton- Mufflin Science, California Edition (2007).

Single H Atom

H Atom on Cu(001)

Random Walk of Single H Atom

Single Atom Tracking

Single H Diffusion

Self-Cleaning Lotus Plant

The Lotus Effect

Rough Surface Smooth Surface

Wilhelm Barthlott Paint & Roof Tiles

Lotusan Paint Regular Paint

STM Apparatus

Scanning Tunneling Microscope

STM in Vacuum

Manipulation Mechanism

Pd 20 Chain

Seeing LUMO of Mg-Porphine (Mukamel) (Ho) “Seeing is Believing” A Still Photo

Gold Chains Under Construction

Gold Chains: 1 to 20 Atoms

2-D Box: Standing Waves