Paul Corkum, NRC Ottawa, Canada 
Attosecond Science

Sub-femtosecond photon or electron pulses were both achieved within the past few years.  Experience teaches us that the 

ability to make measurements in any new time regime opens new areas of science.  In the case of attosecond pulses, 

the importance is not only "attoseconds", but the promise of combining sub-Angstrom spatial resolution with sub-femtosecond 

temporal precision (Attoseconds&Angstroms).  

I will describe how attosecond photon and electron pulses are produced and measured, emphasizing the common issues linking 

them.   I will also show how attosecond electrons and photons combine to image electronic orbitals.  

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