Douglass Schumacher

I study the interaction of extremely intense light with matter. At lower intensities, this is the domain of nonlinear optics including such spectacular phenomena as white light continuum generation and filamentation. As somewhat higher intensities, I study laser damage (known in other contexts as laser surgery or laser machining). At the highest intensities, this is the domain of relativistic laser plasma physics.


CV
Contact information
614-292-7035 (phone)
614-292-7557 (fax)
dws@mps.ohio-state.edu

Mailing address
Department of Physics
The Ohio State University
Physics Research Building
Room 4180 Columbus, OH 43210
Member of
The Ohio State University Department Of Physics
The OSU High Energy Density Physics Group
The AMO Group

The American Physical Society
The Optical Society of America

(The above links will open in a new window.)

Some classes that I have taught:
Quantum Optics
Modern Optics
Introduction to Lasers
Ultrafast Optics
Quantum Electronics (old)
Physics 131 (old)
Physics 132 (old)
Physics 133 (old)

Class resources:
Virtual Demos for 13x

Funding and Supercomputer time:

Research

I'm updating this page. Coming soon...

Group

I'm updating this page. Coming soon...

Research (circa 2005)

I've kept this section for nostalgia. Following are just some pictures from my first lab located in Smith Hall and some of my first students.

The main laser system in my lab is based on Ti:Sapphire and produces 60 fs pulses with 1 mJ/pulse at a 1 kHz repetition rate. The pulses can be shaped using a LCD based pulse shaper. Below are two pictures of our laser system. It occupies a single 10' x 4' table. We also have numerous dye lasers for atomic excitation.

Here is what continuum generation looks like. Shown below is the result of sending our laser pulses through 1 mm of pure sapphire at a pulse energy around 2 uJ. The pulse energy increases slightly from left to right.

Here is continuum generation from a microstructure fiber using 1 nJ pump pulses (but lots of them).

 

My First Group

Alumni and where they went next...
Camelia Vasilescu Grad INTEL
Jennifer Tate Grad Post-doc with Lou DiMauro
Kenn Bates Grad INTEL
Becky Weber Undergrad Grad. program OSU
David Sproles  Undergrad Grad. program Stony Brook
Andrew Parkes

REU
Back to St. John's.
Corey Casto 

REU
Grad. program here at OSU.
Owen Marshal Undergrad ACCAD, Inc.
John Stankiewicz Undergrad Law School at William and Mary.
Tracy Moore REU  Grad. program at Maryland.
Jumpei Masae Grad Opnext, Inc.
Michael Ackerman REU Stanford, Applied Physics.
Josh Holt Undergrad Research Associate, OSU Physics Department.
Jason Neiser REU University of Rochester, Institute of Optics.
Elaine Savageau Undergrad Teaching in the mountains of Virginia.