Investigation of dual photonic and phononic bandgaps in two-dimensional phoxonic crystals with veins

Ma, Tian-Xue; Wang, Yue-Sheng; Zhang, Chuanzeng

doi:10.1016/j.optcom.2013.09.009

Cited by 33 publications

(18 citation statements)

References 28 publications

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“…Thus, 2D PPCs become a better choice to obtain the larger CPBGs since it can be more easily manufactured compared to the 3D case. As we know, there are three methods to enlarge the CPBGs, which are introducing the new lattices, 23 low-symmetry filler, 24 and anisotropic dielectric 25 to break the symmetrical profiles of dielectric and topology structures for PCs, respectively. As reported by Qiu and He, 26 CPBGs hardly can be achieved in PCs composed of the dielectric rods inserted in the air with the square lattices since its high symmetry, and the similar phenomenon also can be found in PPCs.…”

mentioning

confidence: 99%

Complete photonic band gaps and tunable self-collimation in the two-dimensional plasma photonic crystals with a new structure

Zhang

Ding

et al. 2015

Physics of Plasmas

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In this paper, the properties of complete photonic band gaps (CPBGs) and tunable self-collimation in two-dimensional plasma photonic crystals (2D PPCs) with a new structure in square lattices, whose dielectric fillers (GaAs) are inserted into homogeneous and nomagnetized plasma background are theoretically investigated by a modified plane wave expansion (PWE) method with a novel technique. The novel PWE method can be utilized to compute the dispersion curves of 2D PPCs with arbitrary-shaped cross section in any lattices. As a comparison, CPBGs of PPCs for four different configurations are numerically calculated. The computed results show that the proposed design has the advantages of achieving the larger CPBGs compared to the other three configurations. The influences of geometric parameters of filled unit cell and plasma frequency on the properties of CPBGs are studied in detail. The calculated results demonstrate that CPBGs of the proposed 2D PPCs can be easily engineered by changing those parameters, and the larger CPBGs also can be obtained by optimization. The self-collimation in such 2D PPCs also is discussed in theory under TM wave. The theoretical simulations reveal that the self-collimation phenomena can be found in the TM bands, and both the frequency range of self-collimation and the equifrequency surface contours can be tuned by the parameters as mentioned above. It means that the frequency range and direction of electromagnetic wave can be manipulated by designing, as it propagates in the proposed PPCs without diffraction. Those results can hold promise for designing the tunable applications based on the proposed PPCs.

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mentioning

confidence: 99%

Complete photonic band gaps and tunable self-collimation in the two-dimensional plasma photonic crystals with a new structure

Zhang

Ding

et al. 2015

Physics of Plasmas

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“…Alternatively, it is formed by drilling complex holes in a square lattice in a silicon slab. A similar 2D PXC, which insures simultaneous, large, complete photonic and phononic bandgaps, was investigated previously [36]. Furthermore, now we extend the 2D structure to 2.5D, i.e., a PXC slab.…”

Section: Structure and Methodsmentioning

confidence: 75%

Simultaneous Guidance of Surface Acoustic and Surface Optical Waves in Phoxonic Crystal Slabs

Wang

Zhang

2017

Crystals

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Phoxonic crystals, which exhibit simultaneous phononic and photonic bandgaps, are promising artificial materials for optomechanical and acousto-optical devices. In this paper, simultaneous guidance of surface acoustic and surface optical waves in truncated phoxonic crystal slabs with veins is investigated using the finite element method. The phoxonic crystal slabs with veins can show dual large bandgaps of phononic and photonic even/odd modes. Based on the phononic and photonic bandgaps, simultaneous surface acoustic and optical modes can be realized by changing the surface geometrical configurations. Both acoustic and optical energies can be highly confined in the surface region. The effect of the surface structures on the dispersion relations of surface modes is discussed; by adjusting the surface geometrical parameters, dual single guided modes and/or slow acoustic and optical waves with small group velocity dispersions can be achieved. The group velocities are about 40 and 10 times smaller than the transverse velocity of the elastic waves in silicon and the speed of light in vacuum, respectively.

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“…[45][46][47] In addition, we can also use the topology optimization to design PnC bandgaps with the ultra-low mid-frequencies for low frequency sound insulation. 60 Moreover, the topology optimization combined with the symmetry reduction may be suitable for the PxC bandgap engineering 34,[48][49][50][51][52][53][54][55][56][57][58] to construct more PxCs with a strong photon-phonon interaction. This interesting problem is the subject of our ongoing research.…”

Section: Conclusion Remarksmentioning

confidence: 99%

Reducing symmetry in topology optimization of two-dimensional porous phononic crystals

2015

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In this paper we present a comprehensive study on the multi-objective optimization of twodimensional porous phononic crystals (PnCs) in both square and triangular lattices with the reduced topology symmetry of the unit-cell. The fast non-dominated sorting-based genetic algorithm II is used to perform the optimization, and the Pareto-optimal solutions are obtained.The results demonstrate that the symmetry reduction significantly influences the optimized structures. The physical mechanism of the optimized structures is analyzed. Topology optimization combined with the symmetry reduction can discover new structures and offer new degrees of freedom to design PnC-based devices. Especially, the rotationally symmetrical structures presented here can be utilized to explore and design new chiral metamaterials.

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Investigation of dual photonic and phononic bandgaps in two-dimensional phoxonic crystals with veins

Cited by 33 publications

References 28 publications

Complete photonic band gaps and tunable self-collimation in the two-dimensional plasma photonic crystals with a new structure

Complete photonic band gaps and tunable self-collimation in the two-dimensional plasma photonic crystals with a new structure

Simultaneous Guidance of Surface Acoustic and Surface Optical Waves in Phoxonic Crystal Slabs

Reducing symmetry in topology optimization of two-dimensional porous phononic crystals

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