RT Journal Article
T1 Binary gratings with random heights
A1 Rico García, José María
A1 Sánchez Brea, Luis Miguel
AB We analyze the far-field intensity distribution of binary phase gratings whose strips present certain randomness in their height. A statistical analysis based on the mutual coherence function is done in the plane just after the grating. Then, the mutual coherence function is propagated to the far field and the intensity distribution is obtained. Generally, the intensity of the diffraction orders decreases in comparison to that of the ideal perfect grating. Several important limit cases, such as low- and high-randomness perturbed gratings, are analyzed. In the high-randomness limit, the phase grating is equivalent to an amplitude grating plus a “halo.” Although these structures are not purely periodic, they behave approximately as a diffraction grating.
PB OSA Publishing
SN 1559-128X
YR 2009
FD 2009-06-01
LK https://hdl.handle.net/20.500.14352/45114
UL https://hdl.handle.net/20.500.14352/45114
LA eng
NO Rico García, J. M. y Sánchez Brea, L. M. «Binary Gratings with Random Heights». Applied Optics, vol. 48, n.o 16, junio de 2009, pp. 3062-69. opg.optica.org, https://doi.org/10.1364/AO.48.003062.
NO Dirección General de Universidades e Investigación de la Consejería de Educación de la Comunidad de Madrid
NO Universidad Complutense de Madrid
NO Ministerio de Industria y Turismo (España)
DS Docta Complutense
RD 18 abr 2025