The photon moves through the crystal in finite time and most of the time
it keeps going without interacting with the crystal, i.e. no
diffraction. However, if diffraction occurs it is instantaneous, or at
least so fast as to consider it instantaneous. In some cases a
diffracted photon diffracts another time while passing through the
remainder of the crystal. Or in Ruppian terms, a poof-pop-poof-pop
event. If you listen carefully you may be able to hear it.
Bart
On 10-10-15 12:43 PM, Jacob Keller wrote:
>but yes, each "photon" really does interact with
EVERY ELECTRON IN THE CRYSTAL at once.
A minor point: the interaction is not really "at once," is it? The
photon does have to move through the crystal over a finite time.
JPK
--
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Bart Hazes (Associate Professor)
Dept. of Medical Microbiology& Immunology
University of Alberta
1-15 Medical Sciences Building
Edmonton, Alberta
Canada, T6G 2H7
phone: 1-780-492-0042
fax: 1-780-492-7521
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