Re: length of wavetrain of single photon

On the Sat, 28 May 2005 09:13:51 +0000 (UTC), Ray Tomes wrote:
> Uncle Al wrote:
>> If you know the contained energy (e.g., calorimetry) and the (weighted
>> distribution of) frequency then you know the number of photons.
>
> There is no distribution of frequency in a laser to weight.
> There is a single frequency which is what makes it a laser.

This is what makes an *ideal* laser. In reality, there will be some
distribution due to Doppler shift (atoms in the laser are not still).

--
Roman Werpachowski
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| http://www.cft.edu.pl/~roman |
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.

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