Bruce Doak

Title: 
Professor
A research image for phyadmin

Professor Doak conducts multidisciplinary research over a broad spectrum of scientific topics, ranging from condensed matter physics to biophysics. His research is predominantly experimental but with forays into theory as needed. The experimental work generally involves the use of a supersonic molecular beam, an electrical discharge beam, or a microscopic liquid droplet beam. Ongoing research projects in the Doak lab include: (1) Development of Rayleigh Droplet Beams (RDB) and Gas Dynamic Virtual Nozzles (GDVN) to inject protein-containing water droplets into ultra-high vacuum for "lensless" imaging with x-ray or electron beams (NSF funding), (2) Growth of InGaN semiconductors using the A3Σu+ excited state of molecular nitrogen, generated in a corona discharge supersonic free-jet (NSF funding), (3) Redesign and reconstruction of the first atom interferometer to utilize helium beams, initially constructed by Prof. Doak while on sabbatical in Göttingen in 1998-99 (NSF funding).

Home Dept: 
Department of Physics
Home Dept URL: 
Arizona State University Department of Physics
Category: 
Faculty
Office Hours: 
Tuesday: 3:00 PM - 5:00 PM
Thursday: 3:00 PM - 5:00 PM
Degree Info: 
Ph.D., Massachusetts Institute of Technology
Area of Study: 
Multidisciplinary Research based on Molecular and Droplet Beams
Phone: 
(480) 965-0640

Selected Publications

J.C.H Spence and R.B. Doak . 2004 . Single Molecule Diffraction . Phys. Rev. Lett. . 92 . 198102
D.C. Jordan, C.T. Burns, and R.B. Doak . 2001 . Corona Discharge Supersonic Free-Jets for III-V Nitride Growth via A3ΣSu+ Metastable Nitrogen . J. App. Phys. . 89 . 883-892
R.B. Doak and A.V.G. Chizmeshya . 2000 . Sufficiency Conditions for Quantum Reflection . Europhys. Lett. . 51 . 381-387
File:
application/pdf iconepl_51_4_381.pdf
R.B. Doak, R.E. Grisenti, S. Rehbein, G. Schmahl, J.P. Toennies, and Ch. W6ll . 1999 . Towards Realization of an Atomic deBroglie Microscope: Helium Atom Focusing using Fresnel Zone Plates . Phys. Rev. Lett. . 83 . 4229-4232
R.J. Roedel, Evans, D.; R.B.Doak, J. McCarter, S. Duerden, M. Green, and J. Garland . 1997 . Projects that integrate engineering, physics, calculus, and English in the Arizona State University Foundation Coalition freshman program . Proceedings, Frontiers in Education Conference . 1 . 38-42

Research Interests

Corona Discharge Supersonic Free-Jet (CDSFJ) to generate excited-state molecular nitrogen for growing III-N semiconductors.

Triggered Rayeligh Droplet Beam (RDB) of water from 4 micrometer dimeter glass capillary nozzle.

Rayleigh Droplet Beam (barely visible near center of photo) of 2 micron diameter superfluid liquid helium droplets in vacuum.