Seeking manual and/or specs on old Candela dye laser UV-1050

[planters]

the quantum world I see a
highly 'chaotic' sea of particle critters who are not all that stable and whose equilibrium is more and more subject to deliberate interference,
at first by trial and error, then more controlled.

This is the heart of my criticism. I do not see this progression of deliberate interference at first by trial and error. The most powerful accelerators can reach energies that interact at the nuclear and sub atomic scale. The most powerful lasers like Vulcan and the Petawatt laser in Austin, to name a couple, can just barely interact at these scales. To make an argument that chemical, any chemical processes concentrate enough energy in time or space to influence nuclear events is daunting. But if you or one of these researchers tries then the onus is on you to provide a convincing mechanism. Too much of the discussion goes like... "I've got some A and some highly purified B and combining them in a vacuum while exposing them to a high voltage pulse is really intense. I've produced more heat than I should have and this is how I can harness it."

Despite my criticism, I love radical thinking. Way too many of my colleagues consider it a waste of time compared to applying conservative principals and generating predictable results. Yet, radical thinking still needs to be rigorous. We need a mechanism then a test of the mechanism and finally, an explanation of the mechanism.

[femtoman]

If there is an enthusiast interested in the dye laser I would, for any fair offer, strap it carefully cushioned to a pallet and ship it.[/QUOTE]

Hello,
I am interested to buy ( 800 $) this laser or exchange with a DILAS laser diode of 130W cw new Value 11'560 $ you can see of my web side
http://www.swissrocketman.fr/diode-d...nm,fr,3,48.cfm

Regards
Swissrocketman

[planters]

Arnold,
I have followed your YouTube channel for some time. You cover a very eclectic mix of technology, very well. Yet, I have always wondered how you were able to convince Gissy to ride that machine.

You are a chemical engineer and you have a great deal of experience with dye lasers. Have you considered the use of quantum dots as a gain medium in the bulk form such as in a conventional dye laser as opposed to the current work around the world that incorporates them in microfluidic channels or locked into the solid state form? The upper state lifetime of several nsec is similar to organic dyes but they avoid the triplet state losses altogether.

Planters

[femtoman]

Arnold,
I have followed your YouTube channel for some time. You cover a very eclectic mix of technology, very well. Yet, I have always wondered how you were able to convince Gissy to ride that machine.

You are a chemical engineer and you have a great deal of experience with dye lasers. Have you considered the use of quantum dots as a gain medium in the bulk form such as in a conventional dye laser as opposed to the current work around the world that incorporates them in microfluidic channels or locked into the solid state form? The upper state lifetime of several nsec is similar to organic dyes but they avoid the triplet state losses altogether.

Planters

Hello Planters,

sorry my english is bad !

I think that quantum dots are structure of semiconductor like CdTe, InAS, GaAs etc.... an you cannot obtain a laser transition.
I not know organic molecule under the structure of quantum dots ?
If you know some structure i am interested to make some tests.

femtoman

[planters]

Your English is much better than my French!

http://nurmikko.engin.brown.edu/?q=node/29

http://nomcorp.com/product/visible-c...-soluble-copy/

http://www.can-hamburg.com/english/m...-series-a.html

http://www.nn-labs.com/product-catalog/cdse/

http://onlinelibrary.wiley.com/doi/1...70005/abstract

http://pubs.acs.org/doi/abs/10.1021/...nalCode=apchd5

https://www.osapublishing.org/oe/abs...i=oe-14-8-3273

https://www.youtube.com/watch?v=6TC1s0ZroQw

These links are not in a logical order. They include a video on the laboratory synthesis of QDs, commercial sources and some experiments where QD's were driven optically to threshold.

I believe that with their broad absorption bandwidth, a N2 laser driving a solution of QD's in an organic solvent contained within a typical quartz cuvette and a high gain optical cavity, might lase. There have been experiments where IR dye has been pumped to threshold with red diode laser pumping.

http://www.dtic.mil/dtic/tr/fulltext/u2/a275114.pdf

The hemispherical resonator in this work produced good mode coupling and very low loss. This is another arrangement where QD's might be made to lase in the bulk form.

My interest arises from my current project to construct a very high energy ablating wall pumped dye laser. The QDs might be made to lase without the triplet losses associated with the usec pulse durations or at the very least provide a better down converter than the coumarin dyes I am currently using.

[catalanjo]

Still a fascinating thread,.......... keep it rolling pls
@ manyhats ...... did Steve finally get the big dye fella .... or will it be crossing the pond

@ planters ....... can one really purchase quantum dot cocktails online

@ swamidog ................. will swami ....eventually be officially "defrocked" by the acolytes of the Newtonian Academic Temples

For next weeks thrilling installment .....


Cheers
Ps. Pls do not change title of thread or I might lose it !

[swamidog]

@ swamidog ................. will swami ....eventually be officially "defrocked" by the acolytes of the Newtonian Academic Temples

i've aligned my chakras to resist THE MAN.

[planters]

@ planters ....... can one really purchase quantum dot cocktails online

Sure, that's why I included the links.

Some discussions I have had suggested that QD's are more resistant to photo bleaching than organic dyes while others suggest the opposite. Because they lack triplet absorption they may have very high efficiency even when pumped gently by CW sources. Liquid state facilitates cooling while the lack of a requirement to flush the cavity of triplet molecules relaxes the flow rate, pressures and reservoir volumes. These can be designed to operate throughout the visible spectrum. Imagine pumping them with a pair of 7W blue diodes.

The question is, how much intensity will be required to produce an energy inversion?