Diffraction in TimeMarcos Mashinsky Phys.Rev. 88, p625 (1952)

The shutter problem

T<0

T>0

Fresnel diffraction in time, similar to diffraction at an edge

TTtkx

Tt

tT

i

kxu

with

uerfcJ

tJ

1

)( 2

20

Time scale

385.0mvx

u

J(t)

/J0

Cornu spiral

Diffraction on Temporal SlitsPascal Szriftgiser, et al. PRL 77, p4 (1996)

Frequency Shifter for Matter Waves Beating between two Matter Waves

St. Bernet et al. PRL 77, 5160 (1996)