Laser-powered coffee

http://www.youtube.com/watch?v=OYvynmK0Slo
*swoons*
*falls off chair*
*head explodes in envy*

Laser-powered coffee. This has everything ever, lasers, coffee, err…. that’s everything ever. And I don’t even like coffee.

And a 2.5kW continuous wave neodymium:YAG laser? I want. You can even see how they defocused the beam, otherwise you’d get coffee going everywhere.

Of course, I’d argue that you’d be better off with a carbon monoxide laser, for better absorbtion, but they’re really expensive. No, I mean really expensive.

(And yes, the approx ~2% efficiency of a Nd:YAG laser means that for a 2.5 KW laser, you’ve got 125 kW of waste heat to get rid off, so you’d be better off making your tea out of the hundred-kettle’s worth of hot water coming out of the back of the laser cooler, but would that be sweet? No, it wouldn’t, and I speak as an expert in these matters.)

11 thoughts on “Laser-powered coffee

    1. Well, seeing as sucrose has a pretty strong absorbtion line close to 1.06 microns, this would indeed work better if the coffee was sweet.

      Actually, I just totally made that up. We might have to ask for the near-IR spectrum of sucrose. Or… Wikipedia! Turns out the C-O bonds resonate at just the right frequency, ans sucrose has many of those, so sugar indeed could make it sweeter.

    1. We might also need to ask: what else in coffee is going to absorb at 1.06 microns? And will it break down under that flux? And what will that do to the taste?

      Alternatively, we could just drink tea.

      Hmm…. creme brulee, baked alaska, is there any food that can’t be improved by lasers?

Leave a Reply

Your e-mail address will not be published. Required fields are marked *