Silicon hybrid plasmonic Bragg grating reflectors and high Q-factor micro-cavities

Xu, Peipeng; Huang, Qiangsheng; Shi, Yaocheng

doi:10.1016/j.optcom.2012.10.002

Cited by 17 publications

(15 citation statements)

References 17 publications

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“…However, the bandgap of the sinusoidal grating is somewhat compromised due to less abruptness, but it can be increased further by increasing the number of cells. Though sinusoidal Bragg grating provides less bandgap compared to a rectangular one, our results show a wider bandgap of 0.387 μm which is more than that reported in [16,17].…”

Section: Resultscontrasting

confidence: 77%

“…The structure proposed in [16] is a MIM sinusoidal Bragg grating, which gives better performance than rectangular ones proposed in [12][13][14][15], yet this is again a 2D structure. A Bragg structure based on HMI plasmonic waveguide with grating incorporated by periodically varying the thicknesses of dielectric layers has also been reported in [17]. Different from that a rectangular Bragg grating in an HMIM plasmonic waveguide has been reported recently which incorporates a periodic variation of waveguide width [11].…”

Section: Introductionmentioning

confidence: 99%

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Sinusoidal Bragg grating based on hybrid metal insulator metal plasmonic waveguide

Chitimireddy

Sharma

Vishwakarma

2018

Micro & Nano Letters

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This is the first report on 3D sinusoidal Bragg grating structure based on hybrid metal insulator metal (HMIM) plasmonic waveguide. The proposed structure has a gradual change in the refractive index rather than an abrupt change providing excellent filtering characteristics. The device is studied at an operating wavelength of 1.55 μm. The results are based on numerical simulations performed using the software CST microwave studio suite. The transmission characteristics show more than 80% transmission in the passband and near zero transmission in the rejection band. The proposed structure reduces the scattering losses and a wide bandgap of 0.387 μm is achieved. The proposed structure has a track length of 3.784 μm for 11 cells, which is very less compared to previous reports allowing large-scale integration of photonic devices. A microcavity is also formed and its resonance is investigated by introducing a defect length of 0.217 μm in the periodic structure. A peak transmission of 50% and a narrow resonance bandwidth of 0.029 μm are achieved at 1.55 μm resonance wavelength. The quality factor which defines the energy stored in the cavity is Q = 53.

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Section: Resultscontrasting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Sinusoidal Bragg grating based on hybrid metal insulator metal plasmonic waveguide

Chitimireddy

Sharma

Vishwakarma

2018

Micro & Nano Letters

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“…The temperature-dependence of a silicon hybrid nanoplasmonic waveguide resonator has been analyzed [73] and an athermal resonator is achieved with the assistance of TiO 2 which has a negative thermal-optical coefficient [74]. Silicon hybrid nanoplasmonic waveguides have also been used to realize photonic-crystal cavities [78][79][80]. The cavity designed in Ref.…”

Section: Ultrasmall Resonatorsmentioning

confidence: 99%

“…Since the hybrid plasmonic waveguide enables a submicron bending radius [53,64,70,71], one can realize ultra-compact resonators, including submicron rings/donuts [65,66,[71][72][73][74][75], disks [76,77] and photonic-crystal cavities [78][79][80], as the well-known versatile elements in photonic integrated circuits. Such resonators have ultra-compact footprint as well as good performances (e.g., acceptable quality factor and large Purcell efficiency [77]).…”

Section: Introductionmentioning

confidence: 99%

Silicon hybrid nanoplasmonics for ultra-dense photonic integration

Guan

Dai

2014

Front. Optoelectron.

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Recently hybrid plasmonic waveguides have been becoming very attractive as a promising candidate to realize next-generation ultra-dense photonic integrated circuits because of the ability to achieve nano-scale confinement of light and relatively long propagation distance. Furthermore, hybrid plasmonic waveguides also offer a platform to merge photonics and electronics so that one can realize ultra-small optoelectronic integrated circuits (OEICs) for high-speed signal generation, processing as well as detection. In this paper, we gave a review for the progresses on various hybrid plasmonic waveguides as well as ultrasmall functionality devices developed recently.

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“…The ability for sharp bending and tight optical confinement makes silicon hybrid nanoplasmonic waveguides very promising to realize ultra-dense devices (e.g., with a sub-μm 2 footprint) for photonic integration, including power splitters [74]- [77], directional couplers [78]- [82], grating reflectors [83], submicron rings/donuts [84]- [86], disks [87]- [88] and photonic-crystal cavities [89]- [91]. Particularly, these ultra-compact resonators also have good performances (e.g., acceptable quality factor and large Purcell efficiency [88]) and are very useful as the well-known versatile elements in photonic integrated circuits.…”

Section: Silicon Hybrid Nanoplasmonic Waveguides For Light Propagationmentioning

confidence: 99%

SOI (silicon-on-insulator)-compatible hybrid nanoplasmonics: waveguiding, polarization-handling, and thermal-tuning

Dai

Guan

2014

SPIE Proceedings

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This paper gives a review for our recent progress on SOI (Silicon-on-insulator)-compatible hybrid nanoplasmonic waveguides which enables a nano-scale light confinement as well as relatively long-distance guided-wave propagation. The strong polarization dependence of silicon hybrid nanoplasmonic waveguides makes it promising to realize on-chip polarization-handling devices with utlrasmall footprints, which is also summarized. Finally, energyefficient thermal-tuning is presented as an example to show the potential of using silicon hybrid nanoplasmonic waveguides as a promising platform to transfer and process both photonic and electronic signals along the same integrated circuit.

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Silicon hybrid plasmonic Bragg grating reflectors and high Q-factor micro-cavities

Cited by 17 publications

References 17 publications

Sinusoidal Bragg grating based on hybrid metal insulator metal plasmonic waveguide

Sinusoidal Bragg grating based on hybrid metal insulator metal plasmonic waveguide

Silicon hybrid nanoplasmonics for ultra-dense photonic integration

SOI (silicon-on-insulator)-compatible hybrid nanoplasmonics: waveguiding, polarization-handling, and thermal-tuning

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