Video Suggestions!!
Added 2016-09-16 00:13:45 +0000 UTCWhat kind of videos do you guys like to see?? Let me know if there's any demo or experiment that you'd like to see me try!
Comments
You could explain what determinates the maximal poweroutput of a laser/ what it takes to drive a diode to a certain mW/W and why you cant get farther than xxx mW
Mika Eel
2017-10-10 17:47:28 +0000 UTCI am wondering if u can make a video for a carbon dioxide LASER. I would like to build mine from scratch
Ahmet Fodily
2017-06-20 13:29:54 +0000 UTCIt'd be cool if lasers could attribute to force field technology. Cold plasma or hot plasma? I'm just a theorist. But I love science.
Conrad Green
2017-01-02 00:59:35 +0000 UTCLooking forward to all this. It's inspiring!
David Stoutamire
2016-09-16 22:35:48 +0000 UTCI keep posting by accident by hitting return. This article discusses the phosphor and thermal engineering in the BMW headlights: <a href="http://www.compoundsemiconductor.net/article/97529-lasers-light-the-road-ahead.html" rel="nofollow noopener" target="_blank">http://www.compoundsemiconductor.net/article/97529-lasers-light-the-road-ahead.html</a>
David Stoutamire
2016-09-16 22:34:07 +0000 UTCYAG:Ce
David Stoutamire
2016-09-16 22:26:04 +0000 UTCThe tricks going to be, how to get the laser to turn on and off without YOU having to push the button on and off... Some type of setup where you can key in the message on like a little texting keyboard of some type, and the setup itself would deliver the beam in the correct morse code sequence automatically. Without having to do it manually, however the option of manual should be in there as well, if possible. ^_^
Fred Fernandez
2016-09-16 05:56:00 +0000 UTCIt would be hard to use my bazooka to pump most dyes because it is CW. Rhodamine 6G is considered among the best CW laser dyes, but unfortunately it does not absorb much 450nm light. :( That being said I have other stuff in mind for chemical light generation! Pretty soon I will attempt a CW ~600nm Rhodamine 6G laser with a 1W 520nm as the pump source. I've also done some more reading on chemical lasers, and some of the designs don't seem to out of reach. Would probably have to build a Marx generator for some MV pulses to get those reactions going fast enough...
styropyro
2016-09-16 04:20:51 +0000 UTCThis one has been on the backburner for a while...I'm gonna have to do a completely new approach. Pumping a dye like that with CW laser light tends to be very poor in efficiency. From what I've read it seems the fluorescein is falling to a metastable triplet state after being excited, and this state simply turns light to heat. Most dye lasers are pulsed on nanosecond timescales and/or use fast dye pumps to move the metastable state out of the pump beam. Instead I want to use some solid surface phsosphors like what are used on those high efficiency BMW headlamps. Can't find what they are made out of online, but I have some similar green phosphors that I might hit with a bunch of spectroscopy methods to figure out what it is.
styropyro
2016-09-16 04:13:24 +0000 UTCI'd love to beam the ISS (with permission of course) and morse code would be great for sending a little message! I need to try to get something organized before long. My bazooka as it was would not work well for this due to its awfully high divergence. I'd want to use a nice green laser of at least a watt...with some good optics and ISS tracking.
styropyro
2016-09-16 04:03:46 +0000 UTCIt occurs to me that fluorescein is used in dye lasers; wondering if the bazooka would be able to pump if you constructed a mirrored cavity. Also looking forward to chemical light generation you mentioned.
David Stoutamire
2016-09-16 02:51:27 +0000 UTCI've been wondering what your plans for the pumped fluorescein are.
David Stoutamire
2016-09-16 02:40:08 +0000 UTCPlease make a laser that's capable of flashing in morse code, so that there can be proof that a further distance of communication can be obtained with a laser! Whether that be pointing straight ahead or straight up. :) The device should flash the laser beam into the correct timing sequence, to the corresponding morse code dots and dashes. F.
Fred Fernandez
2016-09-16 02:37:27 +0000 UTC
