Abstract
A numerical-impulse-response technique for studying the propagation and diffraction of finite-width beams in planar phase gratings is described. It can account for both symmetric and asymmetric diffractions. The grating-length-to-beam-width ratio is shown to govern the extent of beam-profile distortion and selectivity sidelobe suppression. Trade-offs between diffraction efficiency and beam profile have also been demonstrated. Theoretical results have been verified by experimental observa-tions in a planar waveguide geometry of diffracted beams that change from a single diffraction peak to multiple peaks as the grating-length-to-beam-width ratio increases.
| Original language | English |
|---|---|
| Pages (from-to) | 582-592 |
| Number of pages | 11 |
| Journal | Applied Optics |
| Volume | 35 |
| Issue number | 4 |
| State | Published - Feb 1 1996 |
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Keywords
- Diffraction
- Finite beam
- Grating
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Analysis and observation of finite beam Bragg diffraction by a thick planar phase grating. / Wang, Michael Renxun.
In: Applied Optics, Vol. 35, No. 4, 01.02.1996, p. 582-592.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Analysis and observation of finite beam Bragg diffraction by a thick planar phase grating
AU - Wang, Michael Renxun
PY - 1996/2/1
Y1 - 1996/2/1
N2 - A numerical-impulse-response technique for studying the propagation and diffraction of finite-width beams in planar phase gratings is described. It can account for both symmetric and asymmetric diffractions. The grating-length-to-beam-width ratio is shown to govern the extent of beam-profile distortion and selectivity sidelobe suppression. Trade-offs between diffraction efficiency and beam profile have also been demonstrated. Theoretical results have been verified by experimental observa-tions in a planar waveguide geometry of diffracted beams that change from a single diffraction peak to multiple peaks as the grating-length-to-beam-width ratio increases.
AB - A numerical-impulse-response technique for studying the propagation and diffraction of finite-width beams in planar phase gratings is described. It can account for both symmetric and asymmetric diffractions. The grating-length-to-beam-width ratio is shown to govern the extent of beam-profile distortion and selectivity sidelobe suppression. Trade-offs between diffraction efficiency and beam profile have also been demonstrated. Theoretical results have been verified by experimental observa-tions in a planar waveguide geometry of diffracted beams that change from a single diffraction peak to multiple peaks as the grating-length-to-beam-width ratio increases.
KW - Diffraction
KW - Finite beam
KW - Grating
UR - http://www.scopus.com/inward/record.url?scp=0347137739&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0347137739&partnerID=8YFLogxK
M3 - Article
C2 - 21069042
AN - SCOPUS:0347137739
VL - 35
SP - 582
EP - 592
JO - Applied Optics
JF - Applied Optics
SN - 1559-128X
IS - 4
ER -