Chirped photonic crystal with different symmetries for asymmetric light propagation

Singh, Brahm Raj; Rawal, Swati; Sinha, R. K.

doi:10.1007/s00339-016-0134-4

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…Singh et al [22] realized the optical diode effect based on a hexagonal and square-lattice PhC structures with silicon rods immersed in air. The structure is demonstrated in Figure 8.T h e waveguide was formed by removing one row of rods and chirping the neighboring rods, which was realized by changing the radii of the rods.…”

Section: Theoretical Foundations and Application Of Photonic Crystalsmentioning

confidence: 99%

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Optical Diode Based on Two-Dimensional Photonic Crystal

Ye¹,

Liu²,

Yu³

2018

Theoretical Foundations and Application of Photonic Crystals

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The integrated optical diodes have been a thriving research theme due to their potential on-chip applications in photonic circuits for all-optical computing and information processing. Analogous to electronic counterparts, the unidirectional light propagation is characterized by the high contrast between forward and backward transmissions. In this chapter, we demonstrate the proposed schemes and designs for reciprocal and nonreciprocal optical diodes based on two-dimensional (2D) photonic crystal (PhC). The reciprocal devices are built by linear and passive PhC, and the spatial asymmetric mode conversion is utilized to achieve the unidirectionality. The presented nonreciprocal optical diodes rely on the optical nonlinearity of cavity. New 2D PhC optical diodes with high contrast ratio, low insertion loss, large operational bandwidth, small device footprint, and ease of fabrication are highly desirable and still pursued.

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Section: Theoretical Foundations and Application Of Photonic Crystalsmentioning

confidence: 99%

“…For optical diode design, they adopted the same optimization strategy, and the Figure 8. The optical diode in PhC waveguide with chirped rods with different symmetries [22].…”

Section: Theoretical Foundations and Application Of Photonic Crystalsmentioning

confidence: 99%