--- _id: '21032' abstract: - lang: eng text: "In the last few decades, there has been much progress on low loss waveguides, very efficient photon-number detectors and nonlinear processes. Engineered sum-frequency conversion is now at a stage where it allows operation on arbitrary temporal broadband modes, thus making the spectral degree of freedom accessible for information coding. Hereby the information is often encoded into the temporal modes of a single photon. Here, we analyse the prospect of using multi-photon states or squeezed states in different temporal modes based on integrated optics devices. We describe an analogy between mode-selective sum-frequency conversion and a network of spatial beam splitters. Furthermore, we analyse the limits on the achievable squeezing in waveguides with current technology and the loss limits in the conversion process.\r\n This article is part of the themed issue ‘Quantum technology for the 21st century’." article_number: '20160244' author: - first_name: G. full_name: Harder, G. last_name: Harder - first_name: V. full_name: Ansari, V. last_name: Ansari - first_name: Tim full_name: Bartley, Tim id: '49683' last_name: Bartley - first_name: Benjamin full_name: Brecht, Benjamin id: '27150' last_name: Brecht orcid: '0000-0003-4140-0556 ' - first_name: Christine full_name: Silberhorn, Christine id: '26263' last_name: Silberhorn citation: ama: 'Harder G, Ansari V, Bartley T, Brecht B, Silberhorn C. Harnessing temporal modes for multi-photon quantum information processing based on integrated optics. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 2017;375(2099). doi:10.1098/rsta.2016.0244' apa: 'Harder, G., Ansari, V., Bartley, T., Brecht, B., & Silberhorn, C. (2017). Harnessing temporal modes for multi-photon quantum information processing based on integrated optics. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 375(2099), Article 20160244. https://doi.org/10.1098/rsta.2016.0244' bibtex: '@article{Harder_Ansari_Bartley_Brecht_Silberhorn_2017, title={Harnessing temporal modes for multi-photon quantum information processing based on integrated optics}, volume={375}, DOI={10.1098/rsta.2016.0244}, number={209920160244}, journal={Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences}, author={Harder, G. and Ansari, V. and Bartley, Tim and Brecht, Benjamin and Silberhorn, Christine}, year={2017} }' chicago: 'Harder, G., V. Ansari, Tim Bartley, Benjamin Brecht, and Christine Silberhorn. “Harnessing Temporal Modes for Multi-Photon Quantum Information Processing Based on Integrated Optics.” Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 375, no. 2099 (2017). https://doi.org/10.1098/rsta.2016.0244.' ieee: 'G. Harder, V. Ansari, T. Bartley, B. Brecht, and C. Silberhorn, “Harnessing temporal modes for multi-photon quantum information processing based on integrated optics,” Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 375, no. 2099, Art. no. 20160244, 2017, doi: 10.1098/rsta.2016.0244.' mla: 'Harder, G., et al. “Harnessing Temporal Modes for Multi-Photon Quantum Information Processing Based on Integrated Optics.” Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 375, no. 2099, 20160244, 2017, doi:10.1098/rsta.2016.0244.' short: 'G. Harder, V. Ansari, T. Bartley, B. Brecht, C. Silberhorn, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 375 (2017).' date_created: 2021-01-20T08:44:54Z date_updated: 2023-01-27T08:59:17Z department: - _id: '15' - _id: '288' doi: 10.1098/rsta.2016.0244 intvolume: ' 375' issue: '2099' language: - iso: eng publication: 'Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences' publication_identifier: issn: - 1364-503X - 1471-2962 publication_status: published status: public title: Harnessing temporal modes for multi-photon quantum information processing based on integrated optics type: journal_article user_id: '26263' volume: 375 year: '2017' ... --- _id: '39720' abstract: - lang: eng text: "\r\n We examine for the first time how chemically and thermally stable gold nanoparticles (NPs), prepared by a silane conjugation approach, affect both the thermal and the electro-optical properties of a nematic liquid crystal (LC), when doped at concentrations ranging from 0.25 to 7.5 wt%. We find that the octadecylsilane-conjugated gold NPs stabilize both the enantiotropic nematic and the monotropic smectic-A phases of the LC host with a maximum stabilization of 2\r\n °\r\n C for the nematic and 3.5\r\n °\r\n C for the smectic-A phases for the mixture containing 1 wt% of the silanized particles. The same mixture shows the lowest values for the Fréedericksz transition threshold voltage and the highest value for the dielectric anisotropy. Generally, all NP-containing mixtures, except mixtures with NP concentrations exceeding 5 wt%, reduce the threshold voltage, increase the dielectric anisotropy and reduce both rise and decay time; the latter particularly at temperatures at least 10\r\n °\r\n \ C below the isotropic–nematic phase transition on cooling.\r\n " article_number: '20120256' author: - first_name: Javad full_name: Mirzaei, Javad last_name: Mirzaei - first_name: Martin full_name: Urbanski, Martin last_name: Urbanski - first_name: Heinz-Siegfried full_name: Kitzerow, Heinz-Siegfried id: '254' last_name: Kitzerow - first_name: Torsten full_name: Hegmann, Torsten last_name: Hegmann citation: ama: 'Mirzaei J, Urbanski M, Kitzerow H-S, Hegmann T. Hydrophobic gold nanoparticles via silane conjugation: chemically and thermally robust nanoparticles as dopants for nematic liquid crystals. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 2013;371(1988). doi:10.1098/rsta.2012.0256' apa: 'Mirzaei, J., Urbanski, M., Kitzerow, H.-S., & Hegmann, T. (2013). Hydrophobic gold nanoparticles via silane conjugation: chemically and thermally robust nanoparticles as dopants for nematic liquid crystals. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 371(1988), Article 20120256. https://doi.org/10.1098/rsta.2012.0256' bibtex: '@article{Mirzaei_Urbanski_Kitzerow_Hegmann_2013, title={Hydrophobic gold nanoparticles via silane conjugation: chemically and thermally robust nanoparticles as dopants for nematic liquid crystals}, volume={371}, DOI={10.1098/rsta.2012.0256}, number={198820120256}, journal={Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences}, publisher={The Royal Society}, author={Mirzaei, Javad and Urbanski, Martin and Kitzerow, Heinz-Siegfried and Hegmann, Torsten}, year={2013} }' chicago: 'Mirzaei, Javad, Martin Urbanski, Heinz-Siegfried Kitzerow, and Torsten Hegmann. “Hydrophobic Gold Nanoparticles via Silane Conjugation: Chemically and Thermally Robust Nanoparticles as Dopants for Nematic Liquid Crystals.” Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 371, no. 1988 (2013). https://doi.org/10.1098/rsta.2012.0256.' ieee: 'J. Mirzaei, M. Urbanski, H.-S. Kitzerow, and T. Hegmann, “Hydrophobic gold nanoparticles via silane conjugation: chemically and thermally robust nanoparticles as dopants for nematic liquid crystals,” Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 371, no. 1988, Art. no. 20120256, 2013, doi: 10.1098/rsta.2012.0256.' mla: 'Mirzaei, Javad, et al. “Hydrophobic Gold Nanoparticles via Silane Conjugation: Chemically and Thermally Robust Nanoparticles as Dopants for Nematic Liquid Crystals.” Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 371, no. 1988, 20120256, The Royal Society, 2013, doi:10.1098/rsta.2012.0256.' short: 'J. Mirzaei, M. Urbanski, H.-S. Kitzerow, T. Hegmann, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 371 (2013).' date_created: 2023-01-24T18:34:05Z date_updated: 2023-01-24T18:34:39Z department: - _id: '313' - _id: '230' - _id: '638' doi: 10.1098/rsta.2012.0256 intvolume: ' 371' issue: '1988' keyword: - General Physics and Astronomy - General Engineering - General Mathematics language: - iso: eng publication: 'Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences' publication_identifier: issn: - 1364-503X - 1471-2962 publication_status: published publisher: The Royal Society status: public title: 'Hydrophobic gold nanoparticles via silane conjugation: chemically and thermally robust nanoparticles as dopants for nematic liquid crystals' type: journal_article user_id: '254' volume: 371 year: '2013' ...