Curriculum Vitae - Stanford University

Daniel Ratner 2575 Sand Hill Road 917.656.4704
SLAC, Menlo Park, CA dratner@slac.stanford.edu
EDUCATION 2005-2011 Stanford University Stanford, CA
M.A. in Applied Physics, Spring 2007. PhD in Applied Physics, Spring 2011. Research
Advisors: Profs. Alex Chao and John Galayda. Studied theoretical and computational
models of instabilities in coherent light sources. Responsible for gain length and
harmonic measurements in commissioning of LCLS. Rotations studying crystallography
with Professor Axel Brunger and two-photon imaging with Professor Steve Baccus.
1998-2002 Harvard University Cambridge, MA
A.B. in Physics, Magna cum Laude. Research Experience: Neutron trapping and lifetime
measurements in Professor John Doyle’s groups at Harvard and NIST.
WORK 20011-Current SLAC Stanford, CA
Associate Staff Scientist
Working as staff scientist in the laser group of the Linac Coherent Light Source (LCLS).
Research topics include microbunching in FELs, laser-FEL interactions, imaging with X-
ray FELs, and LCLS user science. Lead physicist for Soft X-ray Self-Seeding project.
Feb 2004 to Jun 2005 Museum of Modern Art New York, NY
Conservation Science Research Assistant
Research assistant in MoMA’s conservation science department. Designed and built
bifurcated microfader to predict pigment fading. Quantitative XRF used for elemental
analysis of museum objects.
Nov 2002 to Jan 2004 WhenU.com New York, NY
Business Analyst
Researched and wrote sorting algorithms to automate data processing for a top ten web
property. Designed and coded perl and VBA programs.
TEACHING Summer 2010, Co-instructor USPAS, Department of Energy
Free Electron Lasers, Instructors: Prof. K.J. Kim, Z. Huang, R. Lindberg
Introduction to FEL physics and radiation from electron-based light sources.
Summer 2009, Co-instructor
USPAS, Department of Energy
Classical Mech. and E&M for Accelerators, Instructor: G. Stupakov
Survey of classical mechanics and relativistic E&M with an emphasis on accelerator
physics topics. Class received the highest student ratings at USPAS.
Winter 2009, Teaching Assistant
Stanford University
Graduate Level Electronics Lab, Instructor: Prof. J. Fox
Led the laboratory portion of the Stanford graduate course in electronics.
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AWARDS
2012 Outstanding Doctoral Thesis Research in Beam Physics, American Phys. Soc.
Awarded in recognition of doctoral thesis research of outstanding quality and
achievement in beam physics and engineering.
2012 FEL Young Scientist Award
Awarded in recognition of outstanding contributions to Free Electron Laser science and
technology by a person less than 35 years in age.
PAPERS
Microbunching Instability: Review of Current Models, Observations, and Solutions
D. Ratner, ICFA Beam Dynamics Newsletter No. 45 (2012)
Observation of Shot Noise Suppression at Optical Wavelengths in a Relativistic
Electron Beam
D. Ratner, G. Stupakov, Phys. Rev. Lett., 109 034801 (2012).
Laser Phase Errors in Seeded FELs
D. Ratner, A. Fry, G. Stupakov, W. White. Phys. Rev. ST-AB, 15 030702 (2012).
Demonstration of Self-Seeding in a Hard-X-ray Free-Electron Laser
J. Amann, et al., Nature Photonics, 6, 693-698 (2012).
Analysis of Shot Noise Suppression for Electron Beams
D. Ratner, Z. Huang, G. Stupakov. Phys. Rev. ST-AB, 14, 060710 (2011).
Second and Third Harmonic Measurements at the Linac Coherent Light Source
D. Ratner, et al. Phys. Rev. ST-AB, 14 060701 (2011).
Two-Chicane Compressed Harmonic Generation of Soft X-rays
D. Ratner, A. Chao, Z. Huang, Phys. Rev. ST-AB, 14 020701 (2011).
Reversible Seeding in Storage Rings
D. Ratner, A. Chao. Presented at 33rd International Free Electron Laser Conference (FEL11),
Shanghai, China, 22-26 Aug 2011.
Seeded Radiation Sources with Sawtooth Waveforms
D. Ratner, A. Chao. Presented at 33rd International Free Electron Laser Conference (FEL11),
Shanghai, China, 22-26 Aug 2011.
Steady State Microbunching in a Storage Ring for Generating Coherent Radiation
D. Ratner, A. Chao. Phys. Rev. Lett., 105 154801 (2010).
First Lasing and Operation of an Angstrom-Wavelength Free Electron Laser
P. Emma, et al., Nature Photonics, 4 641 (2010).
Measurements of the Linac Coherent Light Source and it Impact on the X-Ray Free-
Electron Laser Performance
Z. Huang, et al., Phys. Rev. ST-AB, 13 020703 (2010)
Noise Amplification in Echo-Enabled Harmonic Generation
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G. Stupakov, Z. Huang, D. Ratner, Presented at 32 nd International Free Electron Laser
Conference (FEL 2010), Malmo, Sweden, 23-27 Aug 2010.
FEL Gain Length and Saturation Measurements for the Tapered LCLS Undulators
D. Ratner, et al., Presented at 31st International Free Electron Laser Conference (FEL 2009),
Liverpool, UK, 23-28 Aug 2009.
Feasibility Study for a Seeded Hard X-ray Source Based on a Two-Stage Echo-Enabled
Harmonic Generation FEL
D. Xiang, Z. Huang, D. Ratner, G. Stupakov, Presented at 31st International Free Electron Laser
Conference (FEL 2009), Liverpool, UK, 23-28 Aug 2009.
Generation of Attosecond X-ray Pulses with a Multi-Cycle ESASE Scheme
Y. Ding, Z. Huang, D. Ratner, P. Bucksbaum, H. Merdji, Phys. Rev. ST-AB, 12 (2009).
Effects of Energy Chirp on Echo-Enabled Harmonic Generation Free-Electron Lasers
Z. Huang, D. Ratner, G. Stupakov, D. Xiang SLAC-PUB-13547 (2009).
Three-Dimensional Analysis of Longitudinal Space Charge Microbunching Starting
From Shot Noise
D. Ratner, A. Chao, Z. Huang, Presented at 30th International Free Electron Laser Conference
(FEL 2008), Gyeongju, Korea, 24-29 Aug 2008.
Enhancing FEL Power with Phase Shifters
D. Ratner, A. Chao, Z. Huang, Presented at 29th International Free Electron Laser Conference
(FEL 2007), Novosibirsk, Russia, 26-31 Aug 2007.
TALKS
Research on Ultra-Short Time Scales: LCLS and the X-ray Free Electron Laser
Invited Talk at 1 st OPAC Topical Workshop, Geneva, Switzerland, 26-27 June 2013.
Cooling Hadrons with the Microbunching Instability
Invited Talk at 5 th Microbunching Workshop, Pohang, Korea, 8-10 May 2013.
Cooling Hadrons with Microbunched Electrons
Invited Talk at APS April Meeting, Denver, 13-16 Apr 2013.
Shot Noise Reduction in Electron Beams
Invited Talk at High Brightness Beams 2013, San Juan, Puerto Rico, 25-28 Mar 2013.
Laser Phase Errors in Seeded FELs
Invited Talk at 34th International Free Electron Laser Conference (FEL 2012), Kyoto, Japan, 26-
31 Aug 2012.
Models and Evidence of Shot Noise Suppression and Amplification
Invited talk at International Particle Accelerator Conference 2012 (IPAC12), New Orleans, LA,
20-25 May 2012.
Microbunching and Noise Suppression in Linacs and FELs
Invited talk at 4 th Microbunching Instability Workshop, College Park, MD, April 2012.
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Harmonic Power Measurements at LCLS
Contributed talk at 32 nd International Free Electron Laser Conference (FEL 2010), Malmo,
Sweden, 23-27 Aug 2010.
ZAP: The X-Ray Laser Is Born
SLAC Public lecture, Menlo Park, USA, 17 Nov 2009.
FEL Gain Length and Saturation Measurements for the Tapered LCLS Undulators
Contributed Talk at 31st International Free Electron Laser Conference (FEL 2009), Liverpool,
UK, 23-28 Aug 2009.
MISC.
SLAC sub-council for the Communications department
Member of oversight sub-council from 2009-2010.
SLAC Public Relations
SLAC tour guide for public, school and VIP groups, 2007-2012.
SASS Czar
Coordinator for the SLAC student seminar series, Jan-July 2009.
SLAC Volunteer Events
Volunteer at SLAC events and outreach, including US Science and Engineering Fair,
AAAS, Science Bowl, Family Day, and Community Day, 2007-2012.
Extracurricular Interests
Classical Piano, Ceramics (Stanford instructor 2010-2012), Squash (Stanford Club, 2006-
2012), Ultimate Frisbee (Harvard Club Team, 1998-2002), Nordic Skiing (Harvard
Varsity, 1999-2000).
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