Ultra-sensitive wavefront measurement using a Hartmann sensor.
We describe a Hartmann sensor with a sensitivity of lambda /15,500 at lambda= 820nm. We also demonstrate its application to the measurement of an ultra small change in wavefront and show that the result agrees with that expected to within lambda/3,300.
Brooks
Aidan F
AF
Kelly
Thu-Lan
TL
Veitch
Peter J
PJ
Munch
Jesper
J