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Time and Frequency Division (688)


Name Position Phone
Division Secretary
Administrative Officer
Administrative Specialist
Administrative Assistant
Administrative Assistant
Administrative Assistant


Ion Storage

Name Position Phone
David J. Wineland Group Leader, NIST Fellow 303-497-5286
David Allcock NIST Affiliate 303-497-3433
James C. Bergquist Scientist Emeritus 303-497-5459
Justin Bohnet NIST Affiliate 303-497-4038
John Bollinger Physicist 303-497-5861
Ryan Bowler NIST Affiliate 303-497-6319
Samuel Brewer NIST Affiliate 303-497-6448
Joe Britton NIST Affiliate 303-497-7295
Shaun Burd NIST Affiliate .
Jwo-Sy Chen NIST Affiliate 303-497-4579
NIST Affiliate
Shon Cook NIST Affiliate 303-497-4745
Robert Drullinger Physicist 303-497-3183
John Gaebler Physicist 303-497-4446
Aaron Hankin NIST Affiliate .
David Hume Physicist 303-497-4364
Wayne Itano Scientist Emeritus 303-497-5632
Robert Jordens NIST Affiliate 303-497-7415
Dietrich Leibfried Physicist 303-497-7880
David Leibrandt NIST Affiliate 303-497-7292
Yiheng Lin NIST Affiliate 303-497-4213
Katherine McCormick NIST Affiliate 303-497-3534
Till Rosenband Physicist 303-497-4293
Brian Sawyer Physicist 303-497-4214
Daniel Slichter Physicist 303-497-7376
Raghavendra Srinivas NIST Affiliate .
Ting Rei Tan NIST Affiliate 303-497-4149
Susanna Todaro NIST Affiliate 303-497-3845
Yong Wan NIST Affiliate .
Andrew Wilson Physicist 303-497-6144


Time and Frequency Metrology

Name Position Phone
David Howe Group Leader 303-497-3277
Ian Aldridge NIST Affiliate 303-497-5072
Corey Barnes NIST Affiliate 303-497-3517
Archita Hati Electronic Engineer 303-497-5629
Danielle Lirette  NIST Affiliate 303-497-3069
Craig Nelson Electronic Engineer 303-497-7961
NIST Affiliate


Time and Frequency Services

Name Position Phone
John Lowe Group Leader 303-497-5453
Wayne Hanson NIST Affiliate 303-497-5233
Michael Lombardi IT Specialist 303-497-3212
Andrew Novick Electronic Engineer 303-497-3378


Radio Stations WWV/WWVB

Name Position Phone
Matthew Deutch Leader, Electrical Engineer 303-497-3914
Glenn Nelson Electronic Technician 303-497-3914
Douglas Sutton Electronic Technician 303-497-3914
William Yates Electronic Technician 303-497-3914


Radio Station WWVH

Name Position Phone
Dean Okayama Leader, Electrical Engineer 808-335-4361
Adele Ochinang Secretary 808-335-4361
Chris Fujita Electronic Technician 808-335-4361
Dean Takamatsu Electronic Technician 808-335-4361


Atomic Standards

Name Position Phone
Stefania Romisch Group Leader 303-497-3446
Ziqui Li NIST Affiliate 303-497-6017
Tom Parker NIST Affiliate 303-497-7881
NIST Affiliate
Trudi Peppler Computer Specialist 303-497-3338
Joshua Savory NIST Affiliate 303-497-6023
James Spicer Physical Scientist 303-497-5306
Marc Weiss NIST Affiliate 303-497-3261
Victor Zhang Electrical Engineer 303-497-3977


Primary Frequency Standards

Name Position Phone
Steve Jefferts Project Leader 303-497-7377
Neil Ashby NIST Affiliate 303-497-4395
Stephan Barlow Physicist 303-497-5582
Tom Heavner Physicist 303-497-5015
Jon Shirley NIST Affiliate 303-497-3125


Network Synchronization

Name Position Phone
Judah Levine NIST Fellow 303-497-3903
Jian Yao NIST Affiliate 303-497-4721


Optical Frequency Measurements

Name Position Phone
Christopher Oates Group Leader 303-497-7654
Fred Baynes NIST Affiliate 303-497-7356
Joe Becker NIST Affiliate 303-497-7366
NIST Affiliate
Kyle Beloy Physicist 303-497-4112
Flavio Caldas da Cruz NIST Affiliate 303-497-6054
Aurelien Coillet NIST Affiliate 303-497-3655
Daniel Cole NIST Affiliate 303-497-4685
Pascal Del'Haye NIST Affiliate 303-497-7969
Scott Diddams NIST Fellow 303-497-7459
Tara Fortier NIST Affiliate 303-497-4686
Richard Fox Physicist 303-497-3478
NIST Affiliate
Nicholas Green NIST Affiliate 303-497-5192
Daniel Hackett NIST Affiliate 303-497-6049
Nathan Hinkley NIST Affiliate 303-497-3410
Post Doc
Post Doc
Andrew Ludlow Physicist 303-497-4972
Daniel Maser NIST Affiliate 303-497-6713
William McGrew NIST Affiliate 303-497-6680
Judith Olson NIST Affiliate 303-497-3167
Scott Papp Physicist 303-497-3822
Nathaniel Phillips NIST Affiliate 303-497-6971
Franklyn Quinlan Physicist 303-497-4580
Antoine Rolland NIST Affiliate 303-497-5062
Marco Schioppo NIST Affiliate 303-497-6801
Jeffrey Sherman Physicist 303-497-3511
Gabe Ycas NIST Affiliate 303-497-3177


Atomic Devices and

Name Position Phone
John Kitching Group Leader, NIST Fellow 303-497-4083
Eric Blanshan NIST Affiliate 303-497-3174
Phoenix Dai NIST Affiliate 303-497-5668
Argyrios Dellis NIST Affiliate 303-497-4040
Elizabeth Donley Physicist 303-497-5173
Gregory Hoth NIST Affiliate 303-497-4414
Svenja Knappe Physicist 303-497-3334
Ethan Pratt Physicist 303-497-4875
Susan Schima NIST Affiliate 303-497-7213
Dong Sheng NIST Affiliate 303-497-4876
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 Staff Directory



Time and Frequency Division 

Thomas R. O'Brian, Chief

General Information:

303-497-3295 Telephone
303-497-6461 FAX

325 Broadway, M/S 847
Boulder, CO 80305


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