Laser is Coming Soon!

Well, here it is. After lots of interruptions over the last 24 hours, I give you the trailer for Laser, the next of my films. I think it is a bit more playfully enigmatic than the trailer for the first film. (I’ve only just (half an hour ago) finished recording the music for it, and so it really is being rushed to you straight from the cutting room, as it were.)

See earlier posts for my thoughts about the project, and see the trailer for the first film here, and the actual first film, Shine a Light, here. Sorry it is so late… the semester started and I got swamped. See my chatter about that here.

Anyway, here it is! Enjoy!

-cvj

Bookmark the permalink.

4 Responses to Laser is Coming Soon!

  1. Pingback: Laser at Asymptotia

  2. Clifford says:

    Er… thanks for the explanation. 🙂

    I hope you enjoy the film when it appears.

    -cvj

  3. Nige Cook says:

    Yes, the trailer is enigmatic, although I’m keen to see how the full film explains the laser. I’ve only recently studied the physics in Einstein’s treatment of Planck’s radiation law (we did the maths at college, but didn’t have the time to understand the physics behind the equations, as there was a lot on the syllabus). Planck in 1901 of course got the right equation by postulating a lot of resonators, but Einstein in 1916 got the laser principle from going into the mechanism in detail.

    The main discovery of Einstein for the laser principle seems to be that radiation received by an electron from adjacent oscillating charges can either cause that electron to emit stimulated (laser like) radiation of the same frequency as the radiation that the oscillator receives (coherent radiation), or alternatively it can cause the oscillator to emit radiation spontaneously (incoherent, random frequencies). Einstein found that the probability that an oscillator will undergo the stimulated emission of radiation is proportional to the intensity of the radiation, but the probability that it will emit radiation spontaneously is completely independent of the intensity of the radiation.

    Hence, by maximising the intensity of radiation that the electrons are subjected to, the stimulated or coherent (laser type) emission of radiation can be made to be more probable than spontaneous emission. So to get lasering to occur you first need a very strong incoherent light source, and use that to intensely irradiate a rod of lasering material. I think that’s as far as Einstein’s 1916 idea went. Once some stimulated emission is started, it then triggers further stimulated emission and the geometry of the rod is such as to allow a beam of highly coherent radiation to escape through the rod but to prevent incoherent source radiation (which is not moving parallel to the rod) from escaping. I’m fascinated to know how much of the theory is given in your film?

  4. kim says:

    whos the girl?