Design for directional emitter based on self-collimation photonic crystal by adding two-layer dielectric rods

Zhang, Lanlan; Li, Qi; Wang, Qi

doi:10.1007/s10043-012-0040-8

Cited by 2 publications

(2 citation statements)

References 21 publications

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“…and couplers [15,16]. However, most of the previous works are only focused on a certain polarized wave, the transverse-electric (TE) or transverse-magnetic (TM) polarization.…”

Section: Introductionmentioning

confidence: 99%

Study on the polarization-insensitive self-collimation behavior in two-dimensional all-solid photonic crystals

Jiang

2014

J Opt

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Due to unavoidable separation of bands for different polarizations, it is usually difficult to realize polarization-insensitive selfcollimation (PISC) from conventional rod-type two-dimensional photonic crystals (PCs). In this paper, we have systematically investigates the band, equi-frequency contours, and transmission properties of a special two-dimensional PC that quite resembles the structure of conventional rod-type PCs. By only replacing the air background in rod-type PCs with dielectric background, the so-called all-solid two-dimensional PC can show much closer bands than conventional rod-type PCs. Such suppressed band feature is quite beneficial to the formation of flat equi-frequency contours for both polarizations at the same frequency, namely a PISC effect. By further comparing the PISC in different all-solid PCs and optimizing the cutoff value at PC terminations, we have obtained some useful rules to control the performance of PISC. Finally, based on the special PISC effect in all-solid PCs, we have also given two specific examples to illustrate the potential ability of all-solid PCs in realizing novel polarization-insensitive functional devices.

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“…and couplers [15,16]. However, most of the previous works are only focused on a certain polarized wave, the transverse-electric (TE) or transverse-magnetic (TM) polarization.…”

Section: Introductionmentioning

confidence: 99%

Study on the polarization-insensitive self-collimation behavior in two-dimensional all-solid photonic crystals

Jiang

2014

J Opt

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“…In the past years, PhCs have attracted much interest due to their unique properties, such as negative refraction, 3 super-prism, 4 and supercollimation. [8][9][10] Based on the self-collimating effect, various optical devices are investigated like beam splitters, 11,12 and it is possible to make the surface modes radiate by appropriate corrugation of the PhCs interface. 6 The superprism phenomenon shows wide-angle deflection of light beam by a slight change of its wavelength and incident angle, 7 and the supercollimation guides the light beam without expanding its width.…”

Section: Introductionmentioning

confidence: 99%

Supercollimation of photonic crystal with surface modes

Wang¹,

Jiang²,

Ma³

et al. 2013

Opt. Eng

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A model is proposed to realize light collimation by surface modes that propagate on a corrugated surface around the output of a photonic crystal (PhC). The dispersion relation of the surface corrugation is given for a number of surface terminations. Self-collimation effect simulation can be obtained compared to the structure without surface corrugation. Precision collimation is shown at the chosen frequency, which matches with the self-collimation frequency in the PhCs.

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Design for directional emitter based on self-collimation photonic crystal by adding two-layer dielectric rods

Cited by 2 publications

References 21 publications

Study on the polarization-insensitive self-collimation behavior in two-dimensional all-solid photonic crystals

Study on the polarization-insensitive self-collimation behavior in two-dimensional all-solid photonic crystals

Supercollimation of photonic crystal with surface modes

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