Acoustic band gaps in phononic crystal strip waveguides

Hsu, Feng-Chia; Lee, Chiung-I; Hsu, Jin‐Chen; Huang, Tsun-Che; Wang, Chin-Hung; Chang, Po‐Cheng

doi:10.1063/1.3298643

Cited by 61 publications

(26 citation statements)

References 14 publications

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“…Such a structure is very well known to support an even parity photonic bandgap which can allocate defect modes in cavities [39]. Concerning its phononic behavior, it does not support a full bandgap for guided modes [43] but a partial bandgap can appear for certain modal symmetries [44]. Using this approach, the localization of photonic and phononic modes with certain symmetries in point defects created on 1D phoxonic crystal slabs possessing partial bandgaps has been recently demonstrated [7,44].…”

Section: D and 2d Phoxonic Crystal Slabsmentioning

confidence: 99%

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Modeling light-sound interaction in nanoscale cavities and waveguides

et al. 2014

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Abstract:The interaction of light and sound waves at the micro and nanoscale has attracted considerable interest in recent years. The main reason is that this interaction is responsible for a wide variety of intriguing physical phenomena, ranging from the laser-induced cooling of a micromechanical resonator down to its ground state to the management of the speed of guided light pulses by exciting sound waves. A common feature of all these phenomena is the feasibility to tightly confine photons and phonons of similar wavelengths in a very small volume. Amongst the different structures that enable such confinement, optomechanical or phoxonic crystals, which are periodic structures displaying forbidden frequency band gaps for light and sound waves, have revealed themselves as the most appropriate candidates to host nanoscale structures where the light-sound interaction can be boosted. In this review, we describe the theoretical tools that allow the modeling of the interaction between photons and acoustic phonons in nanoscale structures, namely cavities and waveguides, with special emphasis in phoxonic crystal structures. First, we start by summarizing the different optomechanical or phoxonic crystal structures proposed so far and discuss their main advantages and limitations. Then, we describe the different mechanisms that make light interact with sound, and show how to treat them from a theoretical point of view. We then illustrate the different photon-phonon interaction processes with numerical simulations in realistic phoxonic cavities and waveguides. Finally, we introduce some possible applications which can take enormous benefit from the enhanced interaction between light and sound at the nanoscale.

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Section: D and 2d Phoxonic Crystal Slabsmentioning

confidence: 99%

“…Such slab structures (see Figure 1C, D and E) were first introduced independently for both photons [39][40][41][42] and phonons [43]. For the case of phonons, if the structure is surrounded by vacuum, there is no chance for the phonons to escape from the solid slab.…”

Section: D and 2d Phoxonic Crystal Slabsmentioning

confidence: 99%

Modeling light-sound interaction in nanoscale cavities and waveguides

et al. 2014

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“…Wave propagation in PC has received considerable attention [1][2][3] due to the existence of complete acoustic band gaps within which elastic waves can't propagate while in other frequencies range they can transmit without amplitude fading. Because of the presence of band gaps, PC has a broad application prospect in many fields [4,5], such as vibration isolation and noise reduction.…”

Section: Introductionmentioning

confidence: 99%

Band Gaps Of In-Plane Waves Propagating Vertically Through Piezoelectric Phononic Crystal With Initial Stresses

Zhou¹,

Lan²

2016

IJCA

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“…The study of phononi crystals has attracted wide attention in the past decades [1][2][3][4][5] because it gives birth to complete acoustic band gaps within which elastic waves can't propagate while in other frequencies range they can transmit without amplitude fading. PC has a broad application prospect in many fields.…”

Section: Introductionmentioning

confidence: 99%