Related Experiment Video
Updated: Nov 1, 2025

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
Published on: October 11, 2016
Simplified sensitivity analysis of coherent beam combining in a tiled aperture architecture
Abstract:
We propose a simple analytical-numerical model for simplified sensitivity analysis of coherent beam combining of several dozens of emitters arranged in 2D tiled architecture. The main findings are as follows: (i) regarding phase/piston error, the performance does not depend on the number of emitters and particular amplitude profiles and fulfills the Maréchal formula; (ii) regarding tilt mismatch, the performance does not depend on the number of emitters; however, the effect of amplitude profile has to be taken into account; and (iii), regarding wavefront aberration, the Strehl ratio drop is dominant and fulfills the Maréchal formula as well.
Related Concept Videos
Beams with Unsymmetric Loadings
The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...
Deflection of a Beam
Singularity functions, described in an earlier lesson, are powerful mathematical tools that represent discontinuities within a function commonly encountered in structural loading...
Beams with Symmetric Loadings
The M/EI...

