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One of the greatest challenges in fundamental physics is to reconcile quantum mechanics and general relativity in a full theory of "quantum gravity”. It is a challenge that has by turns excited and frustrated physicists, for nearly a century.
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Lasers...'a solution looking for a problem'? Gregory J. Gbur author of Mathematical Methods for Optical Physics and Engineering, 2011 debunks this early misconception with a clear explanation of what a laser is, and exactly how it works!
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From Einstein to Maiman and beyond. Gregory J. Gbur author of Mathematical Methods for Optical Physics and Engineering, 2011 introduces the major personalities involved in the conception and development of the laser.
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To celebrate the 60th anniversary of the first laser Joseph Braat co-author of Imaging Optics, 2019 describes his personal experiences in applied physics research dealing with lasers as special light sources and the enormous and unexpected impact of Maiman's discovery.
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On 16 May 1960, Ted Maiman used silver coated mirrors, a ruby crystal and a photo flash gun to create the first working laser... Brian Culshaw, author of Introducing Photonics, 2020, explains what makes a laser so useful and introduces a number of the laser's vast applications.
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“Photonics” – try asking Google what this is and you’ll find a variety of answers, some more enlightening (pardon the almost inevitable pun…) than others. But what is photonics? Why is it interesting? Well, it all seems to have something to do with light… The latter question – ‘Why is it interesting?’ – is simpler […]
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Interview with ‘Cosmic Revolutionary’ Geraint Lewis from CUP Academic on Vimeo. TRANSCRIPT: Geraint Lewis: I’m Geraint Lewis and I’m a professor of astrophysics at the University of Sydney and I am the author with Luke Barnes of A Cosmic Revolutionaries Handbook (or: How to Overthrow the Big Bang) What reader did you have […]
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Understanding turbulence is an important and challenging problem with a million dollar prize money on it. We illustrate the complexity of a turbulent flow using an example. Consider coffee being mixed vigorously, say by stirring (Figure 1(a)). The kinetic energy fed at the large-scales cascades to intermediate scales and then to small scales, as shown […]
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