Photonic bandgap characteristics of GaAs/AlAs-based one-dimensional quasi-periodic photonic crystal

Biswal, Amita; Kumar, R.; Nayak, Chittaranjan; Dhanalakshmi, Samiappan

doi:10.1016/j.ijleo.2021.166597

Cited by 16 publications

(7 citation statements)

References 42 publications

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“…We then describe the geometry and material of the proposed phoxonic cavity. Next, we calculate the displacement and electric fields of the proposed phoxonic cavity using the transfer matrix method 24 , 25 . By comparing these fields, we demonstrate that structural hierarchy is conducive to confining hypersound and infrared light in a cavity.…”

Section: Phoxonic Cavity With Structural Hierarchymentioning

confidence: 99%

Enhancement of acousto-optic interaction using a phoxonic cavity with structural hierarchy

An,

Park,

Jeon

2024

Sci Rep

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We propose a phoxonic cavity with structural hierarchy to enhance acousto-optic interaction in acoustically dissipative media. In a conventional phoxonic cavity, interaction between infrared light and hypersound with the same wavelength scale became weak due to large acoustic attenuation whose coefficient is proportional to the square of the frequency. To alleviate the acoustic attenuation, it is necessary to use low-frequency sound with much longer wavelength than the infrared light, but the conventional phoxonic cavity is not suitable for confining such hypersound and infrared light simultaneously. In this study, we employ the concept of structural hierarchy into the phoxonic cavity to control infrared light and hypersound with different wavelength scales. A phoxonic cavity with two different scales achieves the acousto-optic interaction approximately 1.6 times that in the conventional one. To further enhance the interaction, we adjust geometrical constitution and material properties of the two-scale phoxonic cavity using quasi-static homogenization theory, leading to the interaction about 2.1 times that in the conventional cavity.

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Section: Phoxonic Cavity With Structural Hierarchymentioning

confidence: 99%

Enhancement of acousto-optic interaction using a phoxonic cavity with structural hierarchy

An,

Park,

Jeon

2024

Sci Rep

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“…In other words, some frequencies of electromagnetic waves in a dielectric structure with periodic dielectric constant distribution are forbidden. The special periodic structure of photonic crystals enables them to block the transmission of photons of specific wavelengths [71,72] . By designing the structure of PC, the photonic band can be artificially adjusted to achieve on-demand regulation of the light field distribution in PC devices.…”

Section: Spectroscopy and Carrier Dynamics Of 1d Photonic Crystalsmentioning

confidence: 99%

Spectroscopy and carrier dynamics of one-dimensional nanostructures

Zhang¹,

Zhu²,

Zhang³

et al. 2022

J. Semicond.

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In recent years, one-dimensional (1D) nanomaterials have raised researcher's interest because of their unique structural characteristic to generate and confine the optical signal and their promising prospects in photonic applications. In this review, we summarized the recent research advances on the spectroscopy and carrier dynamics of 1D nanostructures. First, the condensation and propagation of exciton–polaritons in nanowires (NWs) are introduced. Second, we discussed the properties of 1D photonic crystal (PC) and applications in photonic–plasmonic structures. Third, the observation of topological edge states in 1D topological structures is introduced. Finally, the perspective on the potential opportunities and remaining challenges of 1D nanomaterials is proposed.

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“…PCs [1], [2] are composed of periodic dielectric structures and possess a complete photonic band gap (PBG) in a certain frequency range. Once the frequency falls into the PBG, the propagation of light is strongly suppressed [3], [4]. Therefore, the The associate editor coordinating the review of this manuscript and approving it for publication was Sukhdev Roy.…”

Section: Introductionmentioning

confidence: 99%

Tunable Dual- and Multi-Channel Filter Based on Cantor Photonic Crystals Embedded With Graphene

et al. 2023

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We theoretically investigate the tunable dual-and multi-channel filter in one-dimensional aperiodic photonic crystals (PCs) embedded with graphene. The dielectrics slabs arrayed alternately submit to the Cantor sequence rule and graphene sheets are local at the interfaces of dielectrics layers. Cantor PCs are fractal structures and support a series of discrete resonant channels in transmission spectra, viz. fractal states. Consequently, dual-and multi-filtering channels could be achieved in the compound systems. The central wavelength of each channel and its value of transmission could be modulating by the chemical potential of grapheme and the incident angle as well. It shows that the dual-channel amplitude of transmission can be varied by over 100% and the multiple channels could be switched on and off by the chemical potential of graphene. This study will be very helpful in designing tunable optical filters.

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Photonic bandgap characteristics of GaAs/AlAs-based one-dimensional quasi-periodic photonic crystal

Cited by 16 publications

References 42 publications

Enhancement of acousto-optic interaction using a phoxonic cavity with structural hierarchy

Enhancement of acousto-optic interaction using a phoxonic cavity with structural hierarchy

Spectroscopy and carrier dynamics of one-dimensional nanostructures

Tunable Dual- and Multi-Channel Filter Based on Cantor Photonic Crystals Embedded With Graphene

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