Category Archives: Optics

FiO 2008: Day two

My hotel’s wireless internet completely crapped out late Sunday night, and they still have not been able to get it fixed.   Fortunately, there’s wireless connectivity in some of the conference center, so I thought I’d post an update while I’m … Continue reading →

Posted in Optics, Science news | 2 Comments

‘Liveblogging’ the What’s Hot in Optics Today? session at FiO

I thought I’d experiment and try liveblogging a session about What’s Hot in Optics Today? at the OSA Annual Meeting.  This was in fact one of the first sessions, and seemed interesting enough.  Unfortunately, I couldn’t liveblog, because I didn’t … Continue reading →

Posted in Optics, Science news | 2 Comments

Fabry, Perot, and their wonderful interferometer (1897, 1899)

This is my entry for the fifth edition of The Giant’s Shoulders, to be held at Podblack Blog on November 15th. By the late 1800s, physicists had begun a serious study of the structure of the atom.  The best tool … Continue reading →

Posted in History of science, Optics, Physics | 12 Comments

Optical coherence tomography and the art world

In recent years, scientific tools have been increasingly applied to the study of artwork, for numerous reasons: determination of authenticity, determination of provenance, analysis for restoration, or even for finding ‘hidden’ art buried behind or underneath existing masterworks.  Some time … Continue reading →

Posted in Optics | 2 Comments

“Interference between different photons never occurs:” Not! (1963)

Note: This post is my contribution to the third edition of The Giant’s Shoulders, a carnival of blog posts on classic science papers. One of the most famous statements concerning quantum mechanics, as it relates to the light particles known … Continue reading →

Posted in History of science, Optics, Physics, quantum | 26 Comments

Optics basics: Coherence

In previous optics basics posts, the interference of waves has played a major role.  When two or more monochromatic (single-color) waves are combined, they form a pattern of light and dark regions, in which the combined light fields have constructively … Continue reading →

Posted in Optics, Optics basics | 71 Comments

New ‘cloaking’ results? Not really, but interesting anyway

About a week ago, I reported on another ‘teaser’ in the media about ‘optical cloaks’, hypothetical devices which would in principle make objects contained in their core completely invisible. Such devices have gotten a lot of attention, both scientifically and … Continue reading →

Posted in Invisibility, Optics, Physics | 8 Comments

The cloaking craze: A look at the original papers

As I noted a couple of days ago, apparently there has been another significant experimental breakthrough in the development of dielectric cloaking devices. Researchers at UC Berkeley were responsible, though it is a little unclear what exactly the breakthrough is. … Continue reading →

Posted in Invisibility, Optics, Physics | 15 Comments

Freezing images in an atomic vapor!

I thought I’d step out of my comfort zone and specific field of expertise for once and do a post on some interesting quantum optics. In a June issue of Physical Review Letters, an Israeli research group experimentally demonstrated the … Continue reading →

Posted in Optics, Physics | 5 Comments

Camera-free Radiohead video! (updated)

(Update: I fixed the discussion on LIDAR speed detection, thanks to edweird’s observations in the comments.) This is pretty neat. Via Crooks & Liars, we have Radiohead’s new music video (embedded below the fold), for House of Cards, which uses … Continue reading →

Posted in Entertainment, Optics | 7 Comments