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| 1 | Observation of parity-time symmetry in microwave photonics显示文摘Symmetry plays a crucial role in explorations of the laws of nature.Parity-time(PT)symmetry phenomena can lead to entirely real spectra in non-Hermitian systems,which attracts considerable attention in the fields of optics and electronics because these phenomena provide a new tool for the manipulation of oscillation modes and nonreciprocal signal transmission.A potential new field of application is microwave photonics,an interdisciplinary field in which the interaction between microwaves and optical signals is exploited.In this article,we report the experimental use of PT symmetry in an optoelectronic oscillator(OEO),a key microwave photonics system that can generate singlefrequency sinusoidal signals with high spectral purity.PT symmetry is theoretically analyzed and experimentally observed in an OEO with two mutually coupled active oscillation cavities via a precise manipulation of the interplay between gain and loss in the two oscillation cavities.Stable single-frequency microwave oscillation is achieved without using any optical/electrical filters for oscillation mode selection,which is an indispensable requirement in traditional OEOs.This observation opens new avenues for signal generation and processing based on the PT symmetry principle in microwave photonics. | Yanzhong Liu Tengfei Hao Wei Li Jose Capmany Ninghua Zhu Ming Li | 2018 | Light(Science & Applications)2018，7，1： | 5 |
| 2 | Microwave photonics显示文摘Microwave photonics,an interdisciplinary field that combines microwave engineering and photonic technology for the generation,transmission,processing,and control of microwave signals,to take advantage of the broad bandwidth,high frequency,and low loss offered by modern photonics,has been intensively researched for the last few decades,and numerous solutions have been proposed and demonstrated.In this article,an overview about microwave photonics is provided which covers the basic concepts of microwave photonics,photonic-assisted microwave signal generation,photonic-assisted microwave signal processing,and true time delay beamforming.The implementation of microwave photonic systems based on photonic integrated circuits is also reviewed,including the design,fabrication,and material platforms,application-specific photonic integrated circuits for microwave photonics,and programmable integrated microwave photonics.The challenges and future applications of microwave photonics are also discussed. | Jianping YAO Jose CAPMANY | 2022 | Science China(Information Sciences)2022，65，12： | 3 |
| 3 | Nd3+ ion based self frequency doubling solid state lasers显示文摘 | JAQUE D CAPMANY J GARCIA J | 1999 | Optical Materials1999，13，2： | 2 |
| 4 | Microwave photonics combines two worlds显示文摘 | CAPMANY J NOVAK D | 2007 | Nature Photonics2007，，1： | 1 |
| 5 | Adsorption kinetics of cesium and oxygen on GaAs (100): A model for the activation layer of GaAs photocathodes显示文摘 | Vergara G Gomez L J Capmany J | 1992 | Surface Science1992，278，1： | 1 |
| 6 | Modeling and design of arrayed waveguide gratings显示文摘 | Munoz P Pastor D Capmany J | 2002 | Lightwave Technol2002，20，4： | 1 |
| 7 | Microwave pho tonics: Current challenges towards widespread appli cation显示文摘 | Capmany J Li G F Lira C | 2013 | Optics Express2013，21，22： | 1 |
| 8 | Direct immunomagnetic method for CD34+ cell selection from cryopreserved cord blood grafts for ex vivo expansion protocols显示文摘 | Capmany G Azqueta C | 2000 | Transfusion2000，40，： | 1 |
| 9 | Advanced Subcarrier Multiplexed Label S5wapping in Optical Packet Switching Nodes for Next Generation Internet Networks显示文摘 | G. P. Leguizamon B. Ortega J. Capmany | | 0，，06： | 1 |
| 10 | Adsorption kinetics of cesium and oxygen on GaAs (100)显示文摘 | G Vergara L J Gomez J Capmany M T Montojo | 1992 | Surface Science1992，278，： | 1 |
| 11 | Modeling and design of arrayed waveguide gratings 显示文摘 | MUNOZ P PASTER D CAPMANY J | 2002 | Journal of Lightwave Technology IEEE2002，20，4： | 1 |
| 12 | Infrared and self-frequency doubled laser action in Yb3+-doped LiNbO3: MgO 显示文摘 | Montoya E Capmany J Bauso L E | 1999 | Applied Physics Letters1999，74，21： | 1 |
| 13 | Subcarrier multiplexing optical quantum key distribution显示文摘 | B Ortigosa A Capmany | 2006 | Phys Rev A2006，73，02： | 1 |
| 14 | Microwave photonics com- bines two worlds 显示文摘 | Capmany J Novak D | 2007 | Nature Photonics2007，，6： | 1 |
| 15 | Short-term, serum-free, static culture of cord blood-derived CD+34 cells:effects of FLT3-L and MIP-1alpha on in vitro expansion of hematopoietic progenitor cells 显示文摘 | Capmany G Querol S Cancelas JA | 1999 | Haematologica1999，84，8： | 1 |
| 16 | Microwave photonics combines twoworlds显示文摘 | Capmany J Novak D | 2007 | Nature Photonics2007，1，6： | 1 |
| 17 | Integrated microwave photonics显示文摘 | David Marpaung Chris Roeloffzen René Heideman Arne Leinse Salvador Sales José Capmany | 2013 | Laser & Photonics Reviews2013，，4： | 1 |
| 18 | Microwave photon- ics: Current challenges towards widespread applica- tion显示文摘 | Capmany J Li G Lim C | 2013 | Optics Express2013，21，22： | 1 |
| 19 | Short-term,serum-free,static culture of cord blood-derived CD34+cells:effects of FLT3-L and MIP-1 on in vitro expansion of hematopoietic progenitor cells显示文摘 | Capmany G Qnerol S Antonio J | 1999 | Haematologica1999，84，： | 1 |
| 20 | Adsorption kinetics of cesium and oxygen on GaAs(100)显示文摘 | Vergara G? Gomez L J Capmany J | 1992 | Surface Science1992，278，： | 1 |
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