Nanoplasmonic (meta-)materials and nanophotonics have the unique ability to confine light in extremely sub-wavelength volumes and thereby strongly enhance the effective strength of electromagnetic fields. Fundamentally, such high-field enhancement can alter the local density of states experienced by a photoactive molecule to unprecedented degrees and control its exchange of energy with light. For a sufficiently strong field enhancement, one enters the strong-coupling regime, where the energy exchange between the excited states of molecules/materials and plasmons is faster than the de-coherence processes of the system. As a result, the excitonic state of the molecule becomes entangled with the photonic mode, forming hybrid excitonic-photonic states. These hybrid-states are part light, part matter and allow for characteristic Rabi oscillations of atomic excitations to be observed. Until recently, the conditions for achieving strong-coupling were most commonly met at low temperatures, where de-coherence processes are suppressed. As a major step forward, we have recently demonstrated room-temperature strong coupling of single molecules in a plasmonic nano-cavity [1] which was achieved using a host-guest chemistry technique, controlling matter at the molecular level. Concurrently, linking nano-spectroscopy of quantum dots with strong coupling allows to lithographically realise a strong-coupling set-up that couples dark plasmonic modes and quantum dots [2]. Remarkably, through strong coupling we obtain spectroscopic access to otherwise veiled states (such as the charged trion state) enabled through a strong-coupling induced speed up of the radiative dynamics of the quantum dot states [3]. Considering the key importance of strong coupling in quantum optics our findings pave the road for a wide range of ultrafast quantum optics experiments and quantum technologies at ambient conditions. Moreover, the pronounced position-dependent spectral changes may lead to new types of quantum sensors and near-field quantum imaging modalities. Finally we shall consider strong coupling in hyperbolic metamaterials. References [1] R. Chikkaraddy, B. de Nijs, F. Benz, S. J. Barrow, O. A. Sherman, E. Rosta, A. Demetriadou, P. Fox, O. Hess and J. J. Baumberg, Nature 535, 127 (2016). [2] N Kongsuwan, A Demetriadou, R. Chikkaraddy, F. Benz, V. A. Turek, U. F. Keyser, J. J. Baumberg and O. Hess, ACS Photonics 5, 186 (2017) [3] H. Gross, J. M. Hamm, T. Tuffarelli, O. Hess and B. Hecht, Science Advances 4, eaar4906 (2018).
{"title":"Strong coupling in nanoplasmonic cavities and metamaterials (Conference Presentation)","authors":"O. Hess","doi":"10.1117/12.2322579","DOIUrl":"https://doi.org/10.1117/12.2322579","url":null,"abstract":"Nanoplasmonic (meta-)materials and nanophotonics have the unique ability to confine light in extremely sub-wavelength volumes and thereby strongly enhance the effective strength of electromagnetic fields. Fundamentally, such high-field enhancement can alter the local density of states experienced by a photoactive molecule to unprecedented degrees and control its exchange of energy with light. For a sufficiently strong field enhancement, one enters the strong-coupling regime, where the energy exchange between the excited states of molecules/materials and plasmons is faster than the de-coherence processes of the system. As a result, the excitonic state of the molecule becomes entangled with the photonic mode, forming hybrid excitonic-photonic states. These hybrid-states are part light, part matter and allow for characteristic Rabi oscillations of atomic excitations to be observed. Until recently, the conditions for achieving strong-coupling were most commonly met at low temperatures, where de-coherence processes are suppressed. As a major step forward, we have recently demonstrated room-temperature strong coupling of single molecules in a plasmonic nano-cavity [1] which was achieved using a host-guest chemistry technique, controlling matter at the molecular level. Concurrently, linking nano-spectroscopy of quantum dots with strong coupling allows to lithographically realise a strong-coupling set-up that couples dark plasmonic modes and quantum dots [2]. Remarkably, through strong coupling we obtain spectroscopic access to otherwise veiled states (such as the charged trion state) enabled through a strong-coupling induced speed up of the radiative dynamics of the quantum dot states [3]. Considering the key importance of strong coupling in quantum optics our findings pave the road for a wide range of ultrafast quantum optics experiments and quantum technologies at ambient conditions. Moreover, the pronounced position-dependent spectral changes may lead to new types of quantum sensors and near-field quantum imaging modalities. Finally we shall consider strong coupling in hyperbolic metamaterials. \u0000\u0000References\u0000[1] R. Chikkaraddy, B. de Nijs, F. Benz, S. J. Barrow, O. A. Sherman, E. Rosta, A. Demetriadou, P. Fox, O. Hess and J. J. Baumberg, Nature 535, 127 (2016). \u0000[2] N Kongsuwan, A Demetriadou, R. Chikkaraddy, F. Benz, V. A. Turek, U. F. Keyser, J. J. Baumberg and O. Hess, ACS Photonics 5, 186 (2017)\u0000[3] H. Gross, J. M. Hamm, T. Tuffarelli, O. Hess and B. Hecht, Science Advances 4, eaar4906 (2018).","PeriodicalId":169708,"journal":{"name":"Metamaterials, Metadevices, and Metasystems 2018","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134229690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Plasmonic Huygens’ sources as 3D building blocks for highly efficient metasurface optics (Conference Presentation)","authors":"Bryan M. Adomanis, D. Burckel, M. Marciniak","doi":"10.1117/12.2320315","DOIUrl":"https://doi.org/10.1117/12.2320315","url":null,"abstract":"","PeriodicalId":169708,"journal":{"name":"Metamaterials, Metadevices, and Metasystems 2018","volume":"291 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132817555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"High efficiency metasurfaces based on topology optimization (Conference Presentation)","authors":"Jonathan A. Fan","doi":"10.1117/12.2321232","DOIUrl":"https://doi.org/10.1117/12.2321232","url":null,"abstract":"","PeriodicalId":169708,"journal":{"name":"Metamaterials, Metadevices, and Metasystems 2018","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115882524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Flat optical devices based on metasurfaces composed of sub-wavelength high index dielectric structures, promise to revolutionize the field of free-space optics. I discuss our work on optical systems composed of several metasurfaces like camera lenses, tunable lens systems actuated via micro-electro-mechanics, and on-chip spectrometers.
{"title":"Dielectric metasurfaces and metasystems (Conference Presentation)","authors":"A. Faraon","doi":"10.1117/12.2324269","DOIUrl":"https://doi.org/10.1117/12.2324269","url":null,"abstract":"Flat optical devices based on metasurfaces composed of sub-wavelength high index dielectric structures, promise to revolutionize the field of free-space optics. I discuss our work on optical systems composed of several metasurfaces like camera lenses, tunable lens systems actuated via micro-electro-mechanics, and on-chip spectrometers.","PeriodicalId":169708,"journal":{"name":"Metamaterials, Metadevices, and Metasystems 2018","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123286951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mechanical metamaterials: recent advances and opportunities for NDE and nonlinear acoustics (Conference Presentation)","authors":"E. Karpov, L. A. Danso, John T. Klein","doi":"10.1117/12.2320271","DOIUrl":"https://doi.org/10.1117/12.2320271","url":null,"abstract":"","PeriodicalId":169708,"journal":{"name":"Metamaterials, Metadevices, and Metasystems 2018","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128066555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Prayakarao, S. Koutsares, C. Bonner, M. Noginov
{"title":"Control of spontaneous emission of HITC dye with non-local metal-dielectric environments (Conference Presentation)","authors":"S. Prayakarao, S. Koutsares, C. Bonner, M. Noginov","doi":"10.1117/12.2324255","DOIUrl":"https://doi.org/10.1117/12.2324255","url":null,"abstract":"","PeriodicalId":169708,"journal":{"name":"Metamaterials, Metadevices, and Metasystems 2018","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123717431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The concept of supersymmetry originated in the fields of particle physics and enabled treatment for bosons and fermions on equal footing. Supersymmetry has rapidly expanded to other fields such as quantum mechanics, where it provided a way of generating pairs and families of potentials with similar properties, e.g. different reflection-less potentials; and optics where it can be used to design (de)multiplexing arrays of waveguides. In the first part of the talk, we show that for parity-time symmetric structures supersymmetric transformation is isospectral only locally (at a specific amplitude of gain and loss). Moreover we show that depending on whether a passive mode (with real propagation constant) or an active mode (with gain or loss) is removed, the parity-time symmetry of the system is preserved or broken as a function of gain/loss amplitude. In the second part of the talk we investigate the influence of supersymmetric transformation on the scattering spectrum of reflection-less structures and systems with epsilon-near-zero materials. We show that the transmission/reflection properties of a structure containing an epsilon-near-zero material can be mimicked using materials with refractive index values above unity, which are more easily accessible and introduce smaller losses to the system. The relation between these two systems is governed by supersymmetry. We conduct a quantitative performance analysis of realistic structure in which the continuous variation of the refractive index is replaced by the step-wise profile corresponding to a realistic layered structure. Our studies pave the way towards achieving remarkable properties of the epsilon-near-zero materials with the use of much more accessible materials compatible with the state-of-the-art integrated optics fabrication.
{"title":"Supersymmetry-based mode selection and optimization in coupled systems (Conference Presentation)","authors":"W. Walasik, A. Clabeau, N. Litchinitser","doi":"10.1117/12.2320709","DOIUrl":"https://doi.org/10.1117/12.2320709","url":null,"abstract":"The concept of supersymmetry originated in the fields of particle physics and enabled treatment for bosons and fermions on equal footing. Supersymmetry has rapidly expanded to other fields such as quantum mechanics, where it provided a way of generating pairs and families of potentials with similar properties, e.g. different reflection-less potentials; and optics where it can be used to design (de)multiplexing arrays of waveguides.\u0000\u0000In the first part of the talk, we show that for parity-time symmetric structures supersymmetric transformation is isospectral only locally (at a specific amplitude of gain and loss). Moreover we show that depending on whether a passive mode (with real propagation constant) or an active mode (with gain or loss) is removed, the parity-time symmetry of the system is preserved or broken as a function of gain/loss amplitude. \u0000\u0000In the second part of the talk we investigate the influence of supersymmetric transformation on the scattering spectrum of reflection-less structures and systems with epsilon-near-zero materials. We show that the transmission/reflection properties of a structure containing an epsilon-near-zero material can be mimicked using materials with refractive index values above unity, which are more easily accessible and introduce smaller losses to the system. The relation between these two systems is governed by supersymmetry. We conduct a quantitative performance analysis of realistic structure in which the continuous variation of the refractive index is replaced by the step-wise profile corresponding to a realistic layered structure. \u0000\u0000Our studies pave the way towards achieving remarkable properties of the epsilon-near-zero materials with the use of much more accessible materials compatible with the state-of-the-art integrated optics fabrication.","PeriodicalId":169708,"journal":{"name":"Metamaterials, Metadevices, and Metasystems 2018","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116924548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Because time and space play a similar role in wave propagation, wave propagation is affected by spatial modulation or by time modulation of the refractive index. Here we emphasize the role of time modulation. We show that sudden changes of the medium properties generate instant wave sources that emerge instantaneously from the entire wavefield and can be used to control wavefield and to revisit the way to create time-reversed waves. Experimental demonstrations of this approach will be presented. More sophisticated time manipulations can also be studied and extension of these concepts in the field of plasmonics will be presented.
{"title":"Wave control with \"time materials\" (Conference Presentation)","authors":"M. Fink","doi":"10.1117/12.2326653","DOIUrl":"https://doi.org/10.1117/12.2326653","url":null,"abstract":"Because time and space play a similar role in wave propagation, wave propagation is affected by spatial modulation or by time modulation of the refractive index. Here we emphasize the role of time modulation. We show that sudden changes of the medium properties generate instant wave sources that emerge instantaneously from the entire wavefield and can be used to control wavefield and to revisit the way to create time-reversed waves. Experimental demonstrations of this approach will be presented. More sophisticated time manipulations can also be studied and extension of these concepts in the field of plasmonics will be presented.","PeriodicalId":169708,"journal":{"name":"Metamaterials, Metadevices, and Metasystems 2018","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122364176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rapidly time-variant metadevices for linear frequency conversion (Conference Presentation)","authors":"B. Min","doi":"10.1117/12.2325210","DOIUrl":"https://doi.org/10.1117/12.2325210","url":null,"abstract":"","PeriodicalId":169708,"journal":{"name":"Metamaterials, Metadevices, and Metasystems 2018","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129733251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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