Low loss sharp photonic crystal waveguide bends

Zhao, Jianlin; Cui, Kaiyu; Feng, Xue; Liu, Fang; Zhang, Wei; Huang, Yidong

doi:10.1016/j.optcom.2015.06.001

Cited by 17 publications

(2 citation statements)

References 17 publications

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“…Along with the properties discussed in the review, PhCs have other properties which have received great interest among researchers. This include low-loss sharp PhCW bends up to 120 degrees have been successfully achieved [128]. This enables directing light to a desired path which can be further useful for light splitting [129].…”

Section: Future Directionmentioning

confidence: 99%

Slow-Light Enhanced Liquid and Gas Sensing Using 2-D Photonic Crystal Line Waveguides—A Review

Singhal

Paprotny

2022

IEEE Sensors J.

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Photonic Crystals (PhCs) are periodically structured dielectric materials that have attracted significant research interest in the last two decades for their ability to slow down group velocity of a propagating pulse envelope with promising sensing applications. This review paper discusses the properties of two-dimensional (2D) PhCs including the slow-light phenomenon, band-gap generation and application of these properties for gas and liquid sensing. Waveguide generation by introducing defects with light guiding and confinement is discussed. Additionally, for 2D PhC line waveguides, a comprehensive review on slow-light principle and phenomenon of slow-light enhanced sensing for gases and liquids is discussed. One-dimensional (1D) and three-dimensional (3D) PhCs are also reviewed for band-gap generation and defects in PhCs along with present fabrication challenges and future trends. Our study highlights an increase in the detection capabilities of PhC based sensors paving way for high sensitivity detectors with applications in ubiquitous monitoring of gases and liquids.

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Section: Future Directionmentioning

confidence: 99%

Slow-Light Enhanced Liquid and Gas Sensing Using 2-D Photonic Crystal Line Waveguides—A Review

Singhal

Paprotny

2022

IEEE Sensors J.

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“…Therefore, the enlarged optical force via a high-quality factor photonic crystal cavity is promising for trapping and manipulating various vulnerable particles. Compared with two-dimensional photonic crystal structures [5][6][7][8], one-dimensional nanobeam photonic crystal cavities have attracted considerable attention due to their compact nanobeam structures [9], ease of integration of coupling waveguides [10], high quality factors [11] and small mode volumes [12]. The relationship of the optical gradient force between the quality factor, mode volume and transmission has been systematically analyzed in the nanobeam photonic crystal cavities [13].…”

Section: Introductionmentioning

confidence: 99%

Trapping and Optomechanical Sensing of Particles with a Nanobeam Photonic Crystal Cavity

Lin

Liu

et al. 2019

Crystals

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Particle trapping and sensing serve as important tools for non-invasive studies of individual molecule or cell in bio-photonics. For such applications, it is required that the optical power to trap and detect particles is as low as possible, since large optical power would have side effects on biological particles. In this work, we proposed to deploy a nanobeam photonic crystal cavity for particle trapping and opto-mechanical sensing. For particles captured at 300 K, the input optical power was predicted to be as low as 48.8 μW by calculating the optical force and potential of a polystyrene particle with a radius of 150 nm when the trapping cavity was set in an aqueous environment. Moreover, both the optical and mechanical frequency shifts for particles with different sizes were calculated, which can be detected and distinguished by the optomechanical coupling between the particle and the designed cavity. The relative variation of the mechanical frequency achieved approximately 400%, which indicated better particle sensing compared with the variation of the optical frequency (±0.06%). Therefore, our proposed cavity shows promising potential as functional components in future particle trapping and manipulating applications in lab-on-chip.

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Investigation of dependence the hole radius formed in InGaP on the group velocity, quality factor and defect band structures

Ali

Abed

2018

Opt Quant Electron

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Low loss sharp photonic crystal waveguide bends

Cited by 17 publications

References 17 publications

Slow-Light Enhanced Liquid and Gas Sensing Using 2-D Photonic Crystal Line Waveguides—A Review

Slow-Light Enhanced Liquid and Gas Sensing Using 2-D Photonic Crystal Line Waveguides—A Review

Trapping and Optomechanical Sensing of Particles with a Nanobeam Photonic Crystal Cavity

Investigation of dependence the hole radius formed in InGaP on the group velocity, quality factor and defect band structures

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