By Pasquale Maddaloni
Foreword through Nobel laureate Professor Theodor W. Hänsch of Ludwig-Maximilians-Universität München
Based at the authors’ experimental paintings during the last 25 years, Laser-Based Measurements for Time and Frequency area functions: A Handbook provides simple techniques, state of the art purposes, and destiny traits in optical, atomic, and molecular physics. It offers the entire historical past details at the major different types of laser resources and strategies, bargains an in depth account of the latest effects got for time- and frequency-domain functions of lasers, and develops the theoretical framework beneficial for figuring out the experimental functions.
After a old creation, the e-book describes the elemental suggestions and mathematical instruments required for learning the physics of oscillators. It then discusses microwave and optical resonators, the most important points of operation and basic houses of lasers, and precision spectroscopy and absolute frequency metrology. It additionally specializes in microwave and optical frequency criteria and explores present and power study directions.
Accessible to scientists, postdoc researchers, and complicated undergraduate scholars, this self-contained e-book provides a wide-ranging, balanced assessment of the areas―including frequency criteria and clocks, ultra-high-precision spectroscopy, quantum details, and environmental metrology―revolutionized through the hot creation of optical frequency comb synthesizers (OFCSs) in line with femtosecond mode-locked lasers. The ebook can also be an invaluable consultant to state-of-the-art examine for brands of complex laser platforms and optical devices.
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Extra info for Laser-based measurements for time and frequency domain applications : a handbook
As a clariﬁcation of what was just discussed, it is worth adding that, in principle, we √ should distinguish between the electromagnetism constant cEM = 1/ ε0 µ0 , and the spacetime constant cST appearing in the Lorentz transformation that is at the basis of the formulation of Special Relativity . In general, for example, the celebrated equation unifying the concepts of energy and mass should be written in the form E = mc2ST . cEM agrees with cST insofar as the mass of the photon is zero. If we were to show experimentally that the photon has non-zero mass, then the standard derivation of relativity from electromagnetism would have to be abandoned.
Hänsch. For their unceasing and illuminating research within the ﬁeld of laser-based precision spectroscopy culminating with the realization of OFCSs, they received the other half of the Nobel Prize in Physics in 2005. It now seems possible, with the frequency comb technique, to make frequency measurements in the future with a precision approaching one part in 1018 . This will soon lead to actualize the introduction of a new, optical standard clock. What phenomena and measuring problems can take advantage of this extreme precision?
Today, it is the true light which enlightens every advanced frequency metrology experiment. Additionally, from the sixties to the present, three major developments were triggered by the laser in the ﬁeld of fundamental research: ultra-high-resolution spectroscopy, the ﬁeld of trapping/cooling of atoms, and the realization of optical frequency comb synthesizers based on femtosecond Shedding light on the art of timekeeping 21 (fs) mode-locked lasers. In turn, these three discoveries have played a crucial role in the timekeeping story leading to the realization of the current optical atomic clocks.
Laser-based measurements for time and frequency domain applications : a handbook by Pasquale Maddaloni