User talk:Rocket Laser Man

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[edit] Orphaned non-free media (Image:Survival in the Sky Logo.jpg)

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[edit] Chemical laser article - add Pimentel?

Hello.

I note that you have written at least part of the history section of Chemical laser. As I have just noted on Talk:Chemical laser, George Pimentel is often cited by chemists as the inventor of the chemical laser, and published (at least) two articles on chemical lasers in 1965 and 1967, prior to the 1969 article by Spencer now cited as the "first" chemical laser article (or perhaps the first continuous-wave chemical laser article). I really think his work should be mentioned in the article, but I am not sufficiently expert in lasers to put it into the proper context myself. Could you insert a mention of Pimentel's work? Dirac66 (talk) 03:05, 20 November 2007 (UTC)

[edit] Reply

Thanks, Dirac66 for bringing this to my attention. I'll be glad to work Pimentel into the article if you can get me the references you mentioned. I am not familiar with his work.

Dirac66: After googling "Pimentel" + "chemical laser" I suggest looking at the following papers which all predate Spencer's 1969 paper.

1. JC Polanyi, J.Chem.Phys. 34, 347 (1961) First theoretical proposal of a chemical laser

2. JVV Kaspar and GC Pimentel, Appl. Phys. Letts. 5, 231 (1964) Preliminary results?

  • 3. JVV Kasper and GC Pimentel, Phys Rev Letters 14, 352 (1965) HCl chemical laser, cited in some later reviews as the first chemical laser.
  • 4. KL Kompa and GC Pimentel, J Chem Phys 47, 857 (1967) HF chemical laser

5. PH Connell and GC Pimentel, J Chem Phys 49, 1379 (1968) This one has cw in the title, still before Spencer.

I previously mentioned nos. 3 and 4 on Talk:Chemical laser, but forgot to repeat the mention on your talk page, sorry.

These are titles from Google and I have not actually read these papers, so some may be more relevant than others. I think the Wiki article should indicate first what Pimentel did, and then how exactly Spencer etc advanced the field. (Higher intensity?? Better resolution??) Dirac66 (talk) 01:41, 27 November 2007 (UTC)

[edit] Thanks for addition on Pimentel

Thanks for your quick reading of these papers and additions to the chemical laser article. I think your assessment is correct and gives Pimentel his fair place in this article. I understand your point that his laser was of limited use because external electrical energy is required to generate the reactants (H + Cl) in situ.

Presumably the academic physical chemists who credit Pimentel consider this a technicality. As a chemist I see an analogy to academic organic chemists who credit the synthesis of a molecule to the chemist who first made 100 mg, even if their method is totally impractical for the manufacture of large quantities! Dirac66 02:54, 2 December 2007 (UTC)