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| 2006 Keynote Speaker |
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 Keynote
AddressJohn L. (Jan) Hall 2005 Nobel Laureate and NIST/JILA Fellow The Optical Frequency Comb - a tool of many uses The Optical Frequency Comb concept and technology was developed first as a method for optical frequency measurement, but also enables enhanced time-domain control, with broad applications in spectroscopy, metrology, and extension of nonlinear optics to the UV range and beyond. It should be a major help in frequency-based length metrology, whereby the incredible resolution is accessible ALONG WITH intrinsic resolution of the integer fringe question. John L. Hall is Senior Fellow
Emeritus of the National Institute of Standards and Technology (NIST)
and an Adjoint Fellow of JILA (formerly the Joint Institute for Laboratory
Astrophysics), a joint institute of NIST and the University of Colorado-Boulder.
Known as a preeminent laser experimentalist, Dr. Hall has contributed
significantly to the development of the laser from a laboratory curiosity
to one of the fundamental tools of modern science. He is known also
for his training and mentoring of new generations of inspired physicists,
several now being star researchers themselves.
Hall's work has concentrated on improving the precision and accuracy with which lasers can produce a specific frequency, and the stability with which they can hold that frequency. He has helped to develop a broad range of laser applications, including precision spectroscopy for physical and chemical analysis, new tests of fundamental physical "laws", measurement and redefinition of the speed of light, and other time and length metrology advances, such as the Optical Frequency Comb. Climaxing more than 20 awards from his employer and major professional societies, Dr. Hall was awarded the 2005 Nobel Prize in Physics, sharing this honor with Theodor W. Hansch of the Max-Planck-Institute and Roy J. Glauber of Harvard University. The Nobel was awarded for their contributions to the development of laser-based precision spectroscopy, including the optical frequency comb technique. The optical frequency comb can measure the frequency of another laser with extraordinarily high precision.
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