There is always an exciting story in a discovery of special significance, of which little shall be known unless told.
And told here is the 'Story' of the optical pumping effect, of which little is known. And which as it may seem so unexpectedly now to us: The original discovery of the effect took place long before Lasers: And, 'discovered' at 'CNRS in Paris' -- An exciting story that shall have to be told, and told here for the First Time.
Here is the Story Long before Lasers:
The credit for its discovery goes to 'Alfred Kastler' at 'CNRS' in Paris, 'Centre national de la recherche scientifique, in Paris'.
For discovering the concept 'Pompage Optique', the Optical Pumping, as early as in the spring of the year 1947 and not long after World War II: And developed it, as shall be told here, as an exciting new field in high-resolution Spectroscopy at a resolution limit, by far exceeding, what had been known possible, ever before.
And, as shall have to be told at this very beginning of the story told here:
A discovery Solely and Solely, a result of what proved of profound significance in our winning the War.
The development of the entire Radar technology developed during the war, developed here mainly here at MIT in Cambridge, Massachusetts. An exciting story as shall be told here.
For which if I may quote from a speech by Isidor Isaac Rabi on an occasion following World War II:
"That if we did not have the bomb we would have still won the war, but without Radar, we would have lost it."
|Isidor Isaac Rabi at lecture
||Radar in World War II
There is, an exciting story in the story of the Radar, of which little is known and by now a little over seven decades since. And it is a special pleasure for me to tell that story here now and for the very first time.
Here is the Story:
An original British invention of the working principle of the Radar in the UK for the first time, as it took place in the year 1939 at the very beginning of the War.
And as the historical account of it has it, its follow on development of this entire technology, here at MIT, in Cambridge Massachusetts, in the then building 20, the Radiation laboratory.
And that more specifically: Developed for this very first time at the RF frequencies needed for the Radar in the war effort what was a new class of the strictly 'Hertzian' type transmitters and the receivers needed for the Radar. Operating in the Kilohertz and the Megahertz and the Gigahertz region at the RF frequencies for the first time. -- On which relied this entire radar technology developed during the war. And to which we owe our wining the win the war.
Science was no longer the Same, yet in this period preceding the lasers
As this entire technology became available: In the MIT Radiation Laboratory series covering this entire technology developed here at MIT during the war.
And became available within one full year, following the completion of this entire work during the War -- Science was no longer the same, and neither was much of all else that followed throughout the time and thereafter.
Yet, The story now continues: As the credit goes to the management of this entire effort of what took place at MIT by the then Department of Defense, the DOD, facilitating this entire ongoing effort here at MIT.
And especially the credit goes to Department of Defense (DOD) for having kept this entire personnel, the engineers, and physicists of much distinction, for a full year to commit in writing and record this entire technology that had been shown and developed during the war at MIT.
And hence, this entire MIT Radiation Laboratory series: 27 Volumes. With a 28th Volume written covering the table of content.
And now, in the year 1947.
Available to Alfred Kastler at CNRS in Paris: This entire MIT Radiation Laboratories series covering this entire radar technology, in the radio frequency region of the spectrum, never known before.
And which Resulted in his Winning the Noble Prize in 1956:
For his discovering the Pompage Optique, the Optical Pumping effect -- Which enabled accessing the 'high-lying energy states' of a class of the atomic species by the Optical Pumping effect, as shown by him for the first time.
Enabling the investigation and the measurements for the first time, of the closely spaced structure of the high-lying energy states of this now new class of atomic species: Closely spaced in the Kilohertz and the Megahertz region of spectrum.
Now available to him the tunable RF sources in this region of the spectrum, owed to the development of early radar's during the war, reflected and covered in this MIT Radiation Laboratory series, 28 volumes available to him.
And now with us at this time, 'sixty five years since world war II'
We rely on this same Radar technology in using our little Cell Phones: Transmitting and receiving our Cell Phone signals, with a 'little antenna' in our Cell Phones, serving as a strictly Radar antenna operating in the gigahertz region, transmitting or receiving our Cell Phone signals.
And now on the subject of Ruby R Line and Kastler Pompage Optique
Continued now under the Subtitle: Ruby R Line: Part 2.
This Part 2 will follow what is covered and shown here in above. At a time however, 'no longer' that far long before Lasers. And is written to be inspected as a stand-alone topic -- relying however, on what is covered here in above.