المؤلفون: Cryer-Jenkins, E. A., Enzian, G., Freisem, L., Moroney, N., Price, J. J., Svela, A. Ø., Major, K. D., Vanner, M. R.

مصطلحات موضوعية: Physics - Optics, Condensed Matter - Mesoscale and Nanoscale Physics, Quantum Physics

الوصف: Brillouin-Mandelstam scattering is one of the most accessible nonlinear optical phenomena and has been widely studied since its theoretical discovery one hundred years ago. The scattering mechanism is a three-wave mixing process between two optical fields and one acoustic field and has found a broad range of applications spanning microscopy to ultra-narrow-linewidth lasers. Building on the success of utilizing this nonlinearity at a classical level, a rich avenue is now being opened to explore Brillouin scattering within the paradigm of quantum optics. Here, we take a key step in this direction by employing quantum optical techniques yet to be utilized for Brillouin scattering to characterize the second-order coherence of Stokes scattering across the Brillouin lasing threshold. We use a silica microsphere resonator and single-photon counters to observe the expected transition from bunched statistics of thermal light below the lasing threshold to Poissonian statistics of coherent light above the threshold. Notably, at powers approaching the lasing threshold, we also observe super-thermal statistics, which arise due to instability and a ``flickering'' in and out of lasing as the pump field is transiently depleted. The statistics observed across the transition, including the ``flickering'', are a result of the full nonlinear three-wave mixing process and cannot be captured by a linearized model. These measurements are in good agreement with numerical solutions of the three-wave Langevin equations and are well demarcated by analytical expressions for the instability and the lasing thresholds. These results demonstrate that applying second-order-coherence and photon-counting measurements to Brillouin scattering provides new methods to advance our understanding of Brillouin scattering itself and progress toward quantum-state preparation and characterization of acoustic modes.
Comment: Main (8 pages, 2 figures) + Supplementary (6 pages, 1 figures), Submitted

الوصول الحر: http://arxiv.org/abs/2307.11490Test

المؤلفون: Toninelli, C., Gerhardt, I., Clark, A. S., Reserbat-Plantey, A., Götzinger, S., Ristanovic, Z., Colautti, M., Lombardi, P., Major, K. D., Deperasińska, I., Pernice, W. H., Koppens, F. H. L., Kozankiewicz, B., Gourdon, A., Sandoghdar, V., Orrit, M.

مصطلحات موضوعية: Quantum Physics

الوصف: Isolating single molecules in the solid state has allowed fundamental experiments in basic and applied sciences. When cooled down to liquid helium temperature, certain molecules show transition lines, that are tens of megahertz wide, limited only by the excited state lifetime. The extreme flexibility in the synthesis of organic materials provides, at low costs, a wide palette of emission wavelengths and supporting matrices for such single chromophores. In the last decades, the controlled coupling to photonic structures has led to an optimized interaction efficiency with light. Molecules can hence be operated as single photon sources and as non-linear elements with competitive performance in terms of coherence, scalability and compatibility with diverse integrated platforms. Moreover, they can be used as transducers for the optical read-out of fields and material properties, with the promise of single-quanta resolution in the sensing of charges and motion. We show that quantum emitters based on single molecules hold promise to play a key role in the development of quantum science and technologies.
Comment: 24 pages, 6 figures, 1 table

الوصول الحر: http://arxiv.org/abs/2011.05059Test

المؤلفون: Grandi, S., Nielsen, M. P., Cambiasso, J., Boissier, S., Major, K. D., Reardon, C., Krauss, T. F., Oulton, R. F., Hinds, E. A., Clark, A. S.

المساهمون: Leverhulme Trust, Royal Society, European Commission, Defence Science and Technology Laboratory, H2020 Marie Skłodowska-Curie Actions, Engineering and Physical Sciences Research Council

المصدر: APL Photonics ; volume 4, issue 8 ; ISSN 2378-0967

مصطلحات موضوعية: Computer Networks and Communications, Atomic and Molecular Physics, and Optics

الوصف: We demonstrate the emission of photons from a single molecule into a hybrid gap plasmon waveguide. Crystals of anthracene, doped with dibenzoterrylene (DBT), are grown on top of the waveguides. We investigate a single DBT molecule coupled to the plasmonic region of one of the guides and determine its in-plane orientation, excited state lifetime, and saturation intensity. The molecule emits light into the guide, which is remotely out-coupled by a grating. The second-order autocorrelation and cross-correlation functions show that the emitter is a single molecule and that the light emerging from the grating comes from that molecule. The coupling efficiency is found to be βWG = 11.6(1.5)%. This type of structure is promising for building new functionality into quantum-photonic circuits, where localized regions of strong emitter-guide coupling can be interconnected by low-loss dielectric guides.

الإتاحة: https://doi.org/10.1063/1.5110275Test

المؤلفون: Toninelli, C, Gerhardt, I, Clark, A, S, Reserbat-Plantey, A, Götzinger, S, Ristanovic, Z, Colautti, M, Lombardi, P, Major, K, D, Deperasińska, I, Pernice, W, H, Koppens, F, H L, Kozankiewicz, B, Gourdon, André, Sandoghdar, V, Orrit, M

المساهمون: Groupe NanoSciences (CEMES-GNS), Centre d'élaboration de matériaux et d'études structurales (CEMES), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)

المصدر: https://hal.science/hal-03009784Test ; 2020.

مصطلحات موضوعية: [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph]

الوصف: Isolating single molecules in the solid state has allowed fundamental experiments in basic and applied sciences. When cooled down to liquid helium temperature, certain molecules show transition lines, that are tens of megahertz wide, limited only by the excited state lifetime. The extreme flexibility in the synthesis of organic materials provides, at low costs, a wide palette of emission wavelengths and supporting matrices for such single chromophores. In the last decades, the controlled coupling to photonic structures has led to an optimized interaction efficiency with light. Molecules can hence be operated as single photon sources and as non-linear elements with competitive performance in terms of coherence, scalability and compatibility with diverse integrated platforms. Moreover, they can be used as transducers for the optical read-out of fields and material properties, with the promise of single-quanta resolution in the sensing of charges and motion. We show that quantum emitters based on single molecules hold promise to play a key role in the development of quantum science and technologies. Modern societies have an ever-growing need for efficient computation techniques and for fast and secure communication, to distribute a huge amount of data around the globe. By harnessing quantum effects present at the nanoscale, new quantum technologies can be employed to meet these needs, including quantum cryptography and fully-fledged quantum information processing. On the other hand, the extreme sensitivity of quantum systems to their local environment can be exploited to also create new sensing devices, which provide unprecedented precision, accuracy and resolution and can be deployed within large quantum networks. Key applications require the generation and manipulation of quantum states of light, such as photonic quantum simulation [1, 2], linear optical quantum computing [3], device-independent or long-distance quantum key distribution protocols [4], sub-shot-noise imaging [5] and quantum metrology [6, 7]. In ...

العلاقة: hal-03009784; https://hal.science/hal-03009784Test; https://hal.science/hal-03009784/documentTest; https://hal.science/hal-03009784/file/2011.05059.pdfTest

الإتاحة: https://hal.science/hal-03009784Test
https://hal.science/hal-03009784/documentTest
https://hal.science/hal-03009784/file/2011.05059.pdfTest

المؤلفون: Toninelli, C., Gerhardt, I., Clark, A. S., Reserbat-Plantey, A., Götzinger, S., Ristanović, Z., Colautti, M., Lombardi, P., Major, K. D., Deperasińska, I., Pernice, W. H., Koppens, F. H. L., Kozankiewicz, B., Gourdon, A., Sandoghdar, V., Orrit, M.

المصدر: Nature Materials ; volume 20, issue 12, page 1615-1628 ; ISSN 1476-1122 1476-4660

مصطلحات موضوعية: Mechanical Engineering, Mechanics of Materials, Condensed Matter Physics, General Materials Science, General Chemistry

الإتاحة: https://doi.org/10.1038/s41563-021-00987-4Test
https://www.nature.com/articles/s41563-021-00987-4.pdfTest
https://www.nature.com/articles/s41563-021-00987-4Test

المؤلفون: Printer, Major K. D.

المصدر: BJOG: An International Journal of Obstetrics & Gynaecology ; volume 74, issue 5, page 775-776 ; ISSN 1470-0328 1471-0528

الإتاحة: https://doi.org/10.1111/j.1471-0528.1967.tb03800.xTest

المؤلفون: Printer, Major K. D.

المصدر: BJOG: An International Journal of Obstetrics & Gynaecology ; volume 75, issue 7, page 775-776 ; ISSN 1470-0328 1471-0528

الإتاحة: https://doi.org/10.1111/j.1471-0528.1968.tb01562.xTest

المؤلفون: Major K. D. Printer

المصدر: The Journal of obstetrics and gynaecology of the British Commonwealth. 75(7)

مصطلحات موضوعية: Male, Pathology, medicine.medical_specialty, business.industry, Infant, Newborn, Obstetrics and Gynecology, medicine.disease, Kidney, Erythroblastosis, Fetal, Cytomegalic inclusion body disease, Pregnancy, Cytomegalovirus Infections, medicine, Humans, Female, business

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba1c8bc2570ade2d0b27cd31081937a2Test
https://pubmed.ncbi.nlm.nih.gov/4298556Test

المؤلفون: Major K. D. Printer

المصدر: The Journal of obstetrics and gynaecology of the British Commonwealth. 74(5)

مصطلحات موضوعية: Adult, Ovarian Neoplasms, Pregnancy, Pediatrics, medicine.medical_specialty, business.industry, Cystadenoma, Obstetrics and Gynecology, Puerperal Disorders, medicine.disease, Term (time), Diagnosis, Differential, Pregnancy Complications, Ovarian Cysts, medicine, Meigs' syndrome, Humans, Meigs Syndrome, Female, business

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72f25eb94123f8a9f1c49fa69c3fdf96Test
https://pubmed.ncbi.nlm.nih.gov/6058548Test