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Education Shark Technology

Nobel Laureate and Laser Inventor Charles Townes Passes 73

An anonymous reader writes Charles Hard Townes, a professor emeritus of physics at the University of California, Berkeley, who shared the 1964 Nobel Prize in Physics for invention of the laser and subsequently pioneered the use of lasers in astronomy, died early Tuesday in Oakland. He was 99. "Charlie was a cornerstone of the Space Sciences Laboratory for almost 50 years,” said Stuart Bale, director of the lab and a UC Berkeley professor of physics. “He trained a great number of excellent students in experimental astrophysics and pioneered a program to develop interferometry at short wavelengths. He was a truly inspiring man and a nice guy. We’ll miss him.”
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Nobel Laureate and Laser Inventor Charles Townes Passes

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  • by Chris Reeve ( 2962081 ) on Wednesday January 28, 2015 @02:00PM (#48926177)
    I encourage everybody to closely watch the reporting on his life story. What you will notice is consistently left out, in nearly every instance, is the actual historical lesson that Charles was told by numerous leading quantum theorists of the day that the Heisenberg Uncertainty Principle precluded such a device. And they told him this even as he explained that he had already built a functional prototype. Check his autobiography. The history you hear for science is traditionally cleansed of the uncomfortable bits.
    • by mbkennel ( 97636 ) on Wednesday January 28, 2015 @02:49PM (#48926637)
      Indeed. Bohr argued, even earlier, with Einstein on this issue, saying that stimulated emission was impossible. Einstein derived the rate equations for the laser.

      People erroneously imagine that Einstein was wrong about quantum mechanics. He wasn't. And in two central areas, the Copenhagen interpretation (it is a useful approximation but makes no sense as physics, decoherence does), and the laser, Bohr was wrong and Einstein was right.
      • by Alomex ( 148003 )

        He also discovered electron tunneling, though he gave it as evidence of how nonsensical quantum mechanics was. He was correct on the derivation, but wrong on the interpretation.

        • by tlhIngan ( 30335 ) <slashdot&worf,net> on Wednesday January 28, 2015 @04:05PM (#48927315)

          He also discovered electron tunneling, though he gave it as evidence of how nonsensical quantum mechanics was. He was correct on the derivation, but wrong on the interpretation.

          Well, it IS nonsensical - I mean, by what means should an electron be able to go from point A to point B without acquiring the necessary energy to get over the energy barrier? Granted, the uncertainty principle means there's a chance it could "borrow" the energy temporarily, but that's a random event. What happened is we have a controllable way to tunnel electrons.

          These days we use electron tunnelling every day - the NAND flash chip relies on the floating gate to hold electrons and influence the transistor's parameters which is how it stores bits. And to get those electrons to the gate, we merely bias the transistor in such a way that electrons magically disappear and reappear on the floating gate, without shooting the electrons through the insulation.

          We don't get why or how they do it, but we can exploit it.

      • People erroneously imagine that Einstein was wrong about quantum mechanics. He wasn't. And in two central areas, the Copenhagen interpretation (it is a useful approximation but makes no sense as physics, decoherence does), and the laser, Bohr was wrong and Einstein was right.

        It's going too far to say that Bohr was wrong about the Copenhagen interpretation. [wikipedia.org] There are several competing interpretations of quantum mechanics. None of them have been definitively ruled out, with the exception of local versions of the hidden-variable theory [wikipedia.org], as a consequence of Alain Aspect's experiments that tested the Bell inequality.

    • We should not forget Gordon Gould's statements about being Townes' grad student who made the major critical breakthroughs for the laser. Gould had a three decade patent war to win his patent claims to invention of the laser and many developments. It's an interesting story for an overage commie grad student...

      In the end, Japanese manufacturers paid over a billion $ royalties on Gould's patents.
  • Passes what? (Score:2, Interesting)

    by thewils ( 463314 )

    Wind? Seriously, what's wrong with the word "dies"?

    • Sadly he did, in fact, die. However, for some reason they decided to reference a particularly poignant Scrabble event he participated in instead of that.
    • by Anonymous Coward

      It's not politically correct these days to use the word "died". Doing so may trigger somebody into remembering that the dead person is dead. That could lead to hurt feelings, and maybe even crying. Hurt feelings are NEVER acceptable! So everyone needs to change the words that they use so as to use terms that are more distanced from the real situation at hand.

    • Wind? Seriously, what's wrong with the word "dies"?

      He was eaten by wolves. He was delicious.

    • Who said anything about dying? Obviously, the man is playing a round of bridge.

    • by Anonymous Coward

      I'm sorry that common English idioms frighten and confuse you.

  • A genuinely nice man (Score:5, Interesting)

    by Epeeist ( 2682 ) on Wednesday January 28, 2015 @02:05PM (#48926247) Homepage
    I met him long ago, when I was doing my doctorate. His was one of the standard books on microwave spectroscopy. Apparently he was told that his work on creating the maser was a nice piece of physics, but one that would have no practical use...
  • by braindrainbahrain ( 874202 ) on Wednesday January 28, 2015 @02:11PM (#48926297)

    ...goes that they wanted to name the invention Light Oscillation by Stimulated Emission of Radiation, but nobody would like a LOSER

  • But his legacy will shine in(to) our eyes FOREVER.

  • by account_deleted ( 4530225 ) on Wednesday January 28, 2015 @02:33PM (#48926465)
    Comment removed based on user account deletion
  • by Anonymous Coward

    'nuff said

  • by borknado ( 3994381 ) on Wednesday January 28, 2015 @03:01PM (#48926771)
    One of the best science texts ever. So far ahead of its time... http://books.google.com/books/... [google.com]
  • Very sorry to hear that anyone dies, but death is part of life after all and there should be no shame in saying the word "dies". It bothers me that nobody likes to use the word "dies" or "dead" anymore, in U.S. pop culture at least. To me at least it seems like ever since that cheesy Crossing over with John Edwards show, everybody started using the word "passed" instead of "died". I know it's a terrible time for people close to those who die, but "passed" just sounds like an insult to the dead. At least say

  • He may have passed his peers in the past when he proved them wrong, but yesterday he didn't pass anyone (except maybe in the ambulance or hearse) - he *died*.

  • by renergy ( 1646119 ) on Wednesday January 28, 2015 @03:55PM (#48927205)
    http://www.nobelprize.org/nobe... [nobelprize.org] Interesting reading.
  • Deathbed (Score:4, Funny)

    by speedplane ( 552872 ) on Wednesday January 28, 2015 @09:11PM (#48929191) Homepage
    On his deathbed he said his biggest regret was his inability to mount his invention on sharks.
  • by Anonymous Coward

    In today's enlightened age, we must put all stories in context of the growing gender divide, and the struggle of minorities to coexist with the massive white hegemony that exist in the America. (by America I mean only the USA; after all, Mexico, Suriname, and Chile are not and have never been part of America). The fact that you would even mention a story about Townes, an old white man, and not discuss how the stimulated emission of radiation has made it more difficult for the native Americans, and the Afr

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