63 research outputs found
Data for 'Coherent Perfect Absorption of Single Photons in a Fibre Network'
No full textResearch data for the paper
Vetlugin, A. N., Guo, R., Xomalis, A., Yanikgonul, S., Adamo, G., Soci, C., & Zheludev, N. (Accepted/In press). Coherent Perfect Absorption of Single Photons in a Fibre Network. Applied Physics Letters.</span
Dataset for Cryptography in coherent optical information networks using dissipative metamaterial gates
No full textDataset for:
Xomalis, A., et al (2019). Cryptography in coherent optical information networks using dissipative metamaterial gates. APL Photonics 4, 046102 doi: 10.1063/1.5092216. </span
Dataset for Nonlinear control of coherent absorption and its optical signal processing applications
No full textDataset supports the paper:
Xomalis A, Jung Y, Demirtzioglou I, Lacava C, Plum E, Richardson D, Petropoulos P, Zheludev N, "Nonlinear control of coherent absorption and its optical signal processing applications," APL Photonics 4, 106109 (2019).</span
Data for 'Picosecond all-optical switching and dark pulse generation in a fibre-optic network using a plasmonic metamaterial absorber'
No full textDataset for the journal paper Angelos Xomalis, Iosif Demirtzioglou, Yongmin Jung, Eric Plum, CosimoLacava, Periklis Petropoulos, David J. Richardson, and Nikolay I. Zheludev "Picosecond all-optical switching and dark pulse generation in a fibre-optic network using a plasmonic metamaterial absorber</span
Dataset for: A Fiberized Metamaterial Device for Ultrafast Control of Coherent Optical Signals
No full textDataset for the manuscript 'A Fiberized Metamaterial Device for Ultrafast Control of Coherent Optical Signals' by Iosif Demirtzioglou, Angelos Xomalis, Eric Plum, Yongmin Jung, Cosimo Lacava, Kevin F. MacDonald, Periklis Petropoulos, David J. Richardson, and Nikolay I. Zheludev.
The research data corresponds to the above-stated manuscript and it should be read and interpreted in the context of its published form. Each set of data describes a figure illustrated in the published manuscript and is accompanied by appropriate captions which correspond to the figure numbers, axis titles and legend entries stated in the manuscript.</span
Coherent all-optical signal processing using fibre-optic metadevices
No full textThis Thesis merges the physics of metamaterials with optical fibre technology in order to demonstrate low-power, high-bandwidth signal processing applications. Control over optical absorption using linear coherent interactions of light beams with metasurfaces of deeply subwavelength thickness offers a range of novel opportunities. Here I report on:♦ The first demonstration of a fibre-optic metadevice for coherent all-optical signal processing. The fibre metamaterial has been integrated and packaged resulting in a device that is compatible with standard fibre-optics components.♦ All-optical signal switching, effective nonlinearity and logical functions XOR, NOT and AND performed within a coherent fibre network at wavelengths between 1530 and 1565 nm. The metadevice has been tested at up to 40 Gbit/s with energy consumption as low as 2.5 fJ/bit.♦ Dark pulse generation, selective transmission/absorption of 1 ps pulses and all-optical pulse shaping in the telecommunications C-band with 1 THz bandwidth in-fibre.♦ The first demonstration of a fibre-optic plasmonic/metamaterial device for data security applications. I introduced the concept of coherent cryptography, an optical layer secure communication protocol that does not rely on nonlinear optical processes but instead uses energy redistribution of coherent optical waves interacting on a metamaterial absorber. I demonstrated different types of encryption modes and reported a scheme providing perfect secrecy.♦ Nonlinear control of coherent absorption in a nonlinear fibre network containing a metamaterial absorber. I exploited power-dependent phase retardation arising from the Kerr effect for all-optical noise suppression, power-limiting, pulse restoration, pulse splitting and signal transfer between carrier wavelengths.In addition, I have developed and fabricated fibre metadevices, which have enabled:♦ The first demonstration of coherent perfect absorption and transmission for a single photons in a stabilized quantum fibre network by collaborators.To conclude, this Thesis investigates all-optical solutions provided by plasmonic metamaterials for coherent signal processing within fibre networks. The above proof-of-principle demonstrations show the appropriateness of such metasurfaces for fibre integration and illustrate application opportunities ranging from all-optical switching and pulse shaping to optical encoding and stabilization of fibre-optic classical and quantum information networks
Plasmonic coherent perfect absorption and switching in a fiberized quantum network
No full textIn this report we provide the first demonstration of a fully fiberized quantum network with a fiber-integrated metamaterial as a dissipative switching element. Using the phenomenon of coherent absorption in plasmonic metamaterials we achieve high-contrast control of the single photon absorption probability and demonstrate switching application
Stabilized dissipative single-photon switch for fiberized quantum networks
No full textWe report on the first demonstration of a fully fiberized quantum network by using a fiber-integrated metamaterial as a dissipative switching element. Utilizing the coherent absorption phenomenon in plasmonic metamaterials we achieve high-contrast control of the single-photon absorption probability. We also demonstrate switching application by deploying a feedback mechanism to actively control the phase fluctuations of the network
Metamaterial absorber for dual-rail photonic qubit filtering
No full textWe demonstrate manipulation of a photonic qubit, encoded in a dual-rail basis, by a plasmonic metamaterial absorber. The metamaterial is designed in a way to transmit a single photon, occupying anti-symmetric superposition of two spatial modes, without losses and to absorb its symmetric superposition completely. Thus, whatever the input state of the dual-rail photon, it can leave the absorber in anti-symmetric state only. Probability to pass through the absorber is defined by the amplitude of the anti-symmetric part in the input photon state. To verify this phenomenon, we assembled actively stabilized in-fibre quantum network containing fully-fiberized metamaterial package. By altering the input state of the photon propagating in the network and passing through metamaterial, we measure the output state of the photon and show that it is coherent and does not depend on the input state of the photon. By varying the input state, we also affect the probability of the photon to pass through the absorber. All the results are in a good agreement with the above discussion. We notice, that absorber can be designed in an opposite way: to transmit symmetric state and to absorb anti-symmetric one. Proposed devices can be employed in quantum computation schemes with dual-rail encoding as well as in other protocols of quantum information, operating with single photons or weak coherent states
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