Photonic Crystals, Wave Localization and Applications

光子晶体、波局域化及其应用

基本信息

  • 批准号:
    RGPIN-2019-05262
  • 负责人:
  • 金额:
    $ 2.99万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2022
  • 资助国家:
    加拿大
  • 起止时间:
    2022-01-01 至 2023-12-31
  • 项目状态:
    已结题

项目摘要

We propose to elucidate novel effects in photonic and phononic crystals with an eye to practical applications. The novelty of photonic crystals arises from their ability to coherently trap photons in unique ways and their enabling of strong coupling between light and matter.  We propose to demonstrate the efficacy of photonic crystals for high-efficiency solar energy harvesting in thin-films and for medical diagnostics through novel optical bio-sensors. We propose to develop thin-film photonic crystal architectures for solar light trapping and absorption in next generation photovoltaics. Our effort will focus on the computational design and modeling (both wave optics and electronics) and close collaboration with experimental groups. The underlying physics of our enhanced light trapping and solar absorption is through the coupling of sunlight to slow-light modes of the photonic crystal that propagate in directions transverse to the thin-film surface. This corresponds to a spectral range where the photonic density of states is enhanced relative to that of a homogeneous material. The ultimate aim of this research is the realization of a thin (10 micron) silicon solar cell with power conversion efficiency above 30%.  A related topic is acoustic wave trapping and absorption in thin phononic crystals sheets. We propose to study the role of parallel-to-interface refraction and slow-sound modes in suitably designed, periodically-modulated, elastic materials to achieve broad-band sound absorption for the purpose of sound-proofing. This involves phononic band structure optimization and finite-difference time-domain simulations of sound passing from air into thin phononic crystal sheets. We propose to extend our study of lab-in-a-photonic-crystal biosensors for medical diagnostics to realistic 3D architectures amenable to low-cost fabrication. The spectral fingerprinting and logical discrimination of multiple disease-markers is facilitated by the interaction of multiple resonance modes within a photonic band gap. Our aim is to work closely with leading experimental groups with expertise in fabrication of nano-pillar photonic crystals, knowledge in micro-fluidics and experience in functionalizing dielectric surfaces with biologically relevant molecules. We propose to design and characterize new materials capable of realizing exciton-polariton coherence and long-lifetime, equilibrium Bose-Einstein condensation at room temperature.  We will study the nature of quantum many-body correlations resulting from interactions in the excitonic Bose condensate such as bi-exciton Feshbach resonances. We will elucidate the nature of laser-like light emission as the condensate decays radiatively. In the case of attractive exciton-polariton interactions, we will explore the possibility of "Schrodinger Cat" and other macroscopic quantum superposition states made possible by the protective environment of the photonic band gap.
我们建议阐明新的影响,在光子和声子晶体与眼睛的实际应用。光子晶体的新奇来自于它们以独特的方式相干捕获光子的能力,以及它们能够实现光与物质之间的强耦合。 我们建议通过新型光学生物传感器来证明光子晶体在薄膜中高效太阳能收集和医疗诊断方面的功效。我们建议开发薄膜光子晶体结构,用于下一代光子学中的太阳光捕获和吸收。我们的努力将集中在计算设计和建模(包括波动光学和电子学)以及与实验小组的密切合作。我们增强光捕获和太阳能吸收的基本物理原理是通过将太阳光耦合到光子晶体的慢光模式,该光子晶体在横向于薄膜表面的方向上传播。这对应于光子态密度相对于均匀材料的光子态密度增强的光谱范围。本研究的最终目标是实现功率转换效率超过30%的薄(10微米)硅太阳能电池。 一个相关的主题是声波捕获和吸收在薄声子晶体片。我们建议研究平行界面折射和慢声模式在适当设计的弹性材料中的作用,以达到隔音的目的。这涉及到声子带结构的优化和有限差分时域模拟声音从空气中进入薄声子晶体片。我们建议扩展我们的研究实验室在一个光子晶体生物传感器的医疗诊断现实的3D架构适合低成本制造。通过光子带隙内的多个共振模式的相互作用,促进了多个疾病标志物的光谱指纹识别和逻辑区分。我们的目标是与领先的实验组密切合作,这些实验组具有制造纳米柱光子晶体的专业知识,微流体知识以及用生物相关分子功能化介电表面的经验。我们计划设计和表征能够在室温下实现激子-极化子相干和长寿命的平衡玻色-爱因斯坦凝聚的新材料,研究激子玻色凝聚中相互作用(如双激子Feshbach共振)导致的量子多体关联的性质。我们将阐明当凝聚体辐射衰变时,类似激光的光发射的性质。在有吸引力的激子-极化激元相互作用的情况下,我们将探索“薛定谔猫”和其他宏观量子叠加态的可能性,这些量子叠加态是由光子带隙的保护环境所实现的。

项目成果

期刊论文数量(0)
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John, Sajeev其他文献

Fragility of the Schrödinger Cat in thermal environments.
  • DOI:
    10.1038/s41598-023-45701-3
  • 发表时间:
    2023-10-31
  • 期刊:
  • 影响因子:
    4.6
  • 作者:
    Bera, Sandip;Yip, Kenny L. S.;John, Sajeev
  • 通讯作者:
    John, Sajeev
Biosensor architecture for enhanced disease diagnostics: lab-in-a-photonic-crystal
用于增强疾病诊断的生物传感器架构:光子晶体实验室
  • DOI:
    10.1364/oe.24.012166
  • 发表时间:
    2016-05-30
  • 期刊:
  • 影响因子:
    3.8
  • 作者:
    Feng, Shuai;Jiang, Jian-Hua;John, Sajeev
  • 通讯作者:
    John, Sajeev
Beyond 30% Conversion Efficiency in Silicon Solar Cells: A Numerical Demonstration
  • DOI:
    10.1038/s41598-019-48981-w
  • 发表时间:
    2019-08-28
  • 期刊:
  • 影响因子:
    4.6
  • 作者:
    Bhattacharya, Sayak;John, Sajeev
  • 通讯作者:
    John, Sajeev
Broadband optical coupling between microstructured fibers and photonic band gap circuits: Two-dimensional paradigms
  • DOI:
    10.1103/physreva.77.013819
  • 发表时间:
    2008-01-01
  • 期刊:
  • 影响因子:
    2.9
  • 作者:
    Bauer, James;John, Sajeev
  • 通讯作者:
    John, Sajeev
Topological transitions in continuously deformed photonic crystals
连续变形光子晶体的拓扑转变
  • DOI:
    10.1103/physrevb.97.085148
  • 发表时间:
    2018-02-26
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    Zhu, Xuan;Wang, Hai-Xiao;John, Sajeev
  • 通讯作者:
    John, Sajeev

John, Sajeev的其他文献

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{{ truncateString('John, Sajeev', 18)}}的其他基金

Nominated for the NSERC Herzberg Medal
获得 NSERC 赫茨伯格奖章提名
  • 批准号:
    549368-2021
  • 财政年份:
    2021
  • 资助金额:
    $ 2.99万
  • 项目类别:
    Gerhard Herzberg Canada Gold Medal for Science and Engineering
Optical Sciences
光学科学
  • 批准号:
    CRC-2014-00059
  • 财政年份:
    2021
  • 资助金额:
    $ 2.99万
  • 项目类别:
    Canada Research Chairs
Photonic Crystals, Wave Localization and Applications
光子晶体、波局域化及其应用
  • 批准号:
    RGPIN-2019-05262
  • 财政年份:
    2021
  • 资助金额:
    $ 2.99万
  • 项目类别:
    Discovery Grants Program - Individual
Photonic Crystals, Wave Localization and Applications
光子晶体、波局域化及其应用
  • 批准号:
    RGPIN-2019-05262
  • 财政年份:
    2020
  • 资助金额:
    $ 2.99万
  • 项目类别:
    Discovery Grants Program - Individual
Optical Sciences
光学科学
  • 批准号:
    CRC-2014-00059
  • 财政年份:
    2020
  • 资助金额:
    $ 2.99万
  • 项目类别:
    Canada Research Chairs
Photonic Crystals, Wave Localization and Applications
光子晶体、波局域化及其应用
  • 批准号:
    RGPIN-2019-05262
  • 财政年份:
    2019
  • 资助金额:
    $ 2.99万
  • 项目类别:
    Discovery Grants Program - Individual
Optical Sciences
光学科学
  • 批准号:
    CRC-2014-00059
  • 财政年份:
    2019
  • 资助金额:
    $ 2.99万
  • 项目类别:
    Canada Research Chairs
Light-Matter Interactions in Photonic Crystals
光子晶体中的光与物质相互作用
  • 批准号:
    RGPIN-2014-05045
  • 财政年份:
    2018
  • 资助金额:
    $ 2.99万
  • 项目类别:
    Discovery Grants Program - Individual
Optical Sciences
光学科学
  • 批准号:
    CRC-2014-00059
  • 财政年份:
    2018
  • 资助金额:
    $ 2.99万
  • 项目类别:
    Canada Research Chairs
Light-Matter Interactions in Photonic Crystals
光子晶体中的光与物质相互作用
  • 批准号:
    RGPIN-2014-05045
  • 财政年份:
    2017
  • 资助金额:
    $ 2.99万
  • 项目类别:
    Discovery Grants Program - Individual

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同位素纯化掺铒晶体中自旋波存储 ZEFOZ 点的探索
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