Douglass Schumacher

I study extreme light-matter interactions using a combination of ultraintense, ultrashort lasers and highly parallel supercomputing. Most of this work is done in collaboration with my colleagues in the OSU High Energy Density Physics Group. I use our 400 TW Scarlet laser and the Ohio Supercomputer Center, as well as other lasers and supercomputers around the country.


CV

Contact information
614-292-7035 (phone)
614-292-7557 (fax)
dws@mps.ohio-state.edu
4180 Physics Research Building
Mailing address
The Ohio State University
191 West Woodruff Ave
Columbus, OH 43210
Recent classes
Modern Optics
Quantum Optics
Ultrafast Optics
Intro to Lasers
Physics 1250
Physics 1260
Physics 1261
Physics 131
Physics 132
Physics 133

Class resources:
Virtual Demos
Member of
OSU Department Of Physics
OSU HEDP Group
The AMO Group

The American Physical Society
The Optical Society of America

Funding and Supercomputer time:

Research

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. At somewhat higher intensities, this becomes 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. In this regime, electrons are accelerated close to the speed of light in a fraction of an optical cycle, lasers becomes sources of x-rays, gamma rays, electron and ion beams, and antimatter, and states of matter are created that can only be found naturally in the cores of planets or the interiors of stars.

More details coming soon...

Group

Ginevra Cochran Grad cochran.339@buckeyemail.osu.edu
Randall Hanna Undergrad rjhanna13@gmail.com
Frank King Grad king.1473@buckeyemail.osu.edu
Matthew McMahon Grad mattsoestupido@gmail.com
Robert Mitchell Grad mitchell.911@buckeyemail.osu.edu
Patrick Poole Grad poole.patrick@gmail.com

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.