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  1. J

    A Few Examples of Optical Trapping

    There have been several optical trapping threads recently, but I thought I'd put one in the "Science" category. YouTube - Optical Trapping I have a full write-up and some highish res pics here: Optical Trapping and the Momentum of Light @ JWC.blog
  2. J

    DIY Greenie with TEC Temperature Stabilization

    So I've been planning to build a green labby for quite some time now. I bought some crystals from BlueFusion back in July (big, unbonded, and pre-rotationally-aligned) and I'm pretty excited to start working with them. The cool thing, at least in my mind, is that it's going to use a...
  3. J

    Clean Beamshots from my Greenie

    I'm finally getting somewhat decent at taking good beamshots. Laser: SKY Lasers 300mW w/ Tripod from SKY. All the original pics are from here: Laser Pictures But in case you're too lazy to click a link, you can see them below. Click on them for a full size (2592x1944) image.
  4. J

    Scientech 372 Power Meter

    Scientech 372 Laser Power Meter @ JWC.blog This is a copy of the post on my blog about the power meter I got from Laser_Ben this weekend. I apologize for any errors during copying. This meter has a thermopile detector (as opposed to the photoelectric sensor on my Liconix 45PM) and can measure...
  5. J

    A few blu-ray/green pics

    Well, my summer is now officially over... Classes start tomorrow. I thought I'd celebrate a little bit. Large size pics are here (click on them): Random Laser Pictures My top 2 favorites: Also, I built a simple carrying case a few weeks ago. It still needs some polishing (better foam...
  6. J

    Triple Play: 3 Lasers with Ehgemus's Hosts

    Using 3 hosts from Ehgemus, I created (or rather, am creating) a matching RGV set as my last portables before I move onto tabletop laser systems. Unfortunately, the driver for the red diode isn't working as I expected, but I have the green and blu-ray up and running. Lots of pics here: Triple...
  7. J

    So I went to the Optometrist Today...

    Here's the condensed version. About 3 months ago, there was an accident involving a ~60mW 532nm laser and my eye. Exposure time was well under a second. I went to my optometrist a few weeks ago for a routine checkup and mentioned this. After yelling at me for not telling her sooner, she took...
  8. J

    Poor man's water-cooling

    Story and more pics @ http://blog.jwcxz.com/?p=368 But yeah, I'm going to wait for my TEC to arrive before I go any further.
  9. J

    AA/AAA Batteries + Charger on Woot

    This might be gone by the time you see this, but today's Woot is some AA and AAA batteries plus a charger for $9.99 + $5 shipping. Not a bad deal.
  10. J

    Desktop Screenshots

    I'm surprised LPF doesn't have one of these...  Let's start one! Here's what my desktop looks like this month:
  11. J

    *Sigh* Yet another case...

    http://www.boston.com/news/local/massachusetts/articles/2009/03/25/taxiing_plane_is_target_of_laser_light/ This one was near me...
  12. J

    Is this an example of an Airy Disk?

    I discovered that when I burn through a CD case with my 300mW green laser, the following effect is produced on the wall: Full pic: http://jwcxz.com/projects/lasers/halos.jpg Video: http://www.youtube.com/watch?v=Wy3oR6fY6W8 At first, I didn't know what this was caused by, but I found this on...
  13. J

    100mm Diameter Calorimeter

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  14. J

    300mW 532nm Portable from SKYLasers.net - Superb!

    Here is my review of a 300mW green portable laser from SKYlasers.net: http://blog.jwcxz.com/?p=300 Also included in that page is my video review, whose direct link is: http://www.youtube.com/watch?v=-qx3XH6_dt8 As I stated in the review, I am planning to test the power output tomorrow...
  15. J

    My MX Power Blu-Ray Project (done)

    I've been researching, measuring, drawing up plans, redrawing plans, re-researching, re-measuring, redrawing up plans enough.  It's time to start building this thing. I've put up the first post of my build log on my blog: http://blog.jwcxz.com/?p=270 The host I'm using is only labeled as "MX...
  16. J

    BU - MIT Laser Wars

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  17. J

    Hello! (New Member)

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