*****
To join, leave or search the confocal microscopy listserv, go to:
http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy*****
You need phase information to know the actual pulse width; spectrum is not
enough. The spectrometer method makes assumptions about the pulse that fall
apart the instant it enters a microscope. Basically, the spectral width can
tell you how short a pulse can possibly be, but has no way of knowing about
the chirp of the pulse, for instance.
Craig
On Wed, Jul 27, 2011 at 4:24 AM, Stéphane Pagès <
[hidden email]> wrote:
> *****
> To join, leave or search the confocal microscopy listserv, go to:
>
http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy> *****
>
> Hi everybody,
>
> Have some of you ever used a Rees spectrometer in place of an
> autocorrelator.
> As I understood, from the spectrum of the pulse, the analyser calculate the
> duration.
> I would like to optimize the duration of my femtosecond pulses. So I don't
> need to know with precision the duration of each pulse.
> This solution is much cheaper than buying an autoccorelator.
> In addition, I am not able to find a representative selling this kind of
> sprectrometer analyzer.
> Any comments or suggestions ?
> Thanks you very much
> Stéphane
>
Locked
