|
Reconstructing the phase profile of a light beam is necessary in
many applications, such as optical metrology, adaptive
optics, ophthalmology et al. All phase reconstruction
methods are based on phase-to-intensity transformations
that make the light intensity distribution sensed by a
photo detector depend on the phase profile to reconstruct.
We have suggested to use an optical system
comprising the spatial filter known as “phase knife”
to quantitatively reconstruct the shape of a light beam
wavefront. Such a phase knife-based sensor has been
studied both analytically and numerically. The
corresponding phase reconstruction algorithms and sensor
embodiment schemes have been developed. Some expedient
applications has been suggested for the sensor developed.
|
