期刊
JOURNAL OF OPTICS
卷 18, 期 11, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2040-8978/18/11/115006
关键词
Bloch surface wave; phase-shifted Bragg grating; optical differentiation; analog optical signal processing; optics in computing; photonic crystal; resonance domain
类别
资金
- Russian Foundation for Basic Research [16-29-11683, 15-07-00548]
- Russian Science Foundation [14-19-00796]
- Russian Science Foundation [14-19-00796] Funding Source: Russian Science Foundation
Bloch surface waves (BSWs) supported by the interfaces between a photonic crystal and a homogeneous medium are considered as a prospective information carrier in integrated photonic circuits. In the present work, we study the application of on-chip phase-shifted Bragg gratings for spatial differentiation of BSW beams. The presented simulation results demonstrate a high accuracy of the performed differentiation. It is shown that upon differentiation of a Gaussian BSW beam, a two-dimensional analogue of the Hermite-Gaussian mode is generated in reflection. The obtained results may find application in the design of new planar devices for analog optical information processing.
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