• 1. X.W. Chen, K.G. Lee, H. Eghlidi, S. Götzinger and V. Sandoghdar"Enhancing the radiative emission rate of single molecules by a plasmonic nanoantenna weakly coupled with a dielectric substrate"Optics Express 23,32986(2015).

    2. B. Hoffmann, S. Vassant, X.W. Chen, S. Götzinger,V . Sandoghdar and S. Christiansen”Fabrication and characterization of plasmonic nanocone antennas for strong spontaneous emission enhancement”Nanotechnology 26 404001 (2015).

    3. X.L. Chu, T.J.K. Brenner, X.W. Chen, Y. Ghosh, J.A. Hollingsworth, V. Sandoghdar, S. Götzinger”Experimental realization of an optical antenna desighed fo collecting 99% of photons from a quantum emitter” Optica 1.203 (2014).

    4. X.W. Chen, V. S andoghdar, M. Agio, “Coherent Interaction of Light with a Metallic Structure Coupled to a Single Quantum Emitter: From Superabsorption to Cloaking,” Phys. Rev. Lett. 110, 153605 (2013).

    5. X.W. Chen, M. Agio, V. Sandoghdar, “Metallodielectric hybrid antennas for ultrastrong enhancement of spontaneous emission,” Phys. Rev. Lett. 108, 233001 (2012).

    6. K. G. Lee*, X.W. Chen*, H. Eghlidi, P. Kukura, R. Lettow, A. Renn, V. Sandoghdar, S. Götzinger, “A planar dielectric antenna for directional single-photon emission and

    near-unity collection efficiency,” Nature Photonics 5, 166-169 (2011). (*Joint first authors).

    7. X.W. Chen, V. Sandoghdar, M. Agio, “Highly Efficient Interfacing of Guided Plasmons and Photons in Nanowires,Nano Lett. 9, 3756-3761 (2009).

    8. X.W. Chen, S. Götzinger, V. Sandoghdar, “99% efficiency in collecting photons from a single emitter,” Optics Letters 36, 3545-3547 (2011). (This paper was ranked as one of the ten most downloaded papers for two months in Optics Letters and highlighted as cover in Newsletter nº4 of Max-Planck Institute for the Science of Light.).

    9. X.W. Chen, A. Mohammadi, A.H.B. Ghasemi, M. Agio, “Ultrafast coherent nanoscopy,” Molecular Physics 111,3003 (2013).

    10. X.W. Chen, V. Sandoghdar, M. Agio, “Nanofocusing radially-polarized beams for high-throughput funneling of optical energy to the near field,” Opt. Express 18, 10878-10887 (2010).

    11. K.-G. Lee, H. Eghlidi, X.W. Chen, A. Renn, S. Götzinger and V. Sandoghdar, “Spontaneous emission enhancement of a single molecule by a double-sphere nanoantenna across an interface”, Optics Express 20, 23331(2012).

    12. H. Eghlidi, K. Lee, X.W. Chen, S. Götzinger, V. Sandoghdar, “Resolution and Enhancement in Nanoantenna-Based Fluorescence Microscopy,” Nano Lett. 9, 4007–4011 (2009).

    13. X.W. Chen, Sailing He and Wallace C. H. Choy, “Highly efficient and tunable fluorescence of a nano-fluorophore in silica/metal dual shells with plasmonic resonance,” J. Appl. Phys. 103, 024301(2008).

    14. X.W. Chen, Wallace C. H. Choy, C. J. Liang, P.K.A. Wai and Sailing He, “Modifications of the exciton lifetime and internal quantum efficiency for organic light-emitting devices with weak/strong microcavity, ” Appl. Phys. Lett, 91, 221112 (2007).

    15. X.W. Chen, Wallace C. H. Choy, and Sailing He, "Efficient optical modeling of spontaneous emission in a cylindrically layered nanostructure," Opt. Express 15, 10356-10361 (2007).

    16. X.W. Chen, Wallace C. H. Choy, S. He, P. C. Chui, "Comprehensive analysis and optimal design of top-Emitting organic light emitting devices," J. Appl. Phys 101, 113107(2007).

    17. X.W. Chen, Wallace C. H. Choy and Sailing He, “Efficient and rigorous modeling of light emission in planar multilayer organic light-emitting diodes,” J. Display Technol. 3, 110-117 (2007).

    18. X.W. Chen, Wallace C. H. Choy, Sailing He and P.C. Chui, "Highly efficient fluorescence of a fluorescing nanomaterial with a Silver Shell," Opt. Express 15, 7083-7094 (2007).

    19. X.W. Chen, A. Ping Zhang, Sailing He and H. Y. Tam, “Stitched long-period fiber gratings for gain-flattening of broadband EDFAs,” Proceedings of the SPIE 5623, 1021-1028 (2005).

    20. Wallace C. H. Choy, J.H. Niu, X.W. Chen, W.L. Li, P. C. Chui, "Effects of carrier barrier on voltage controllable color tunable OLEDs," Appl. Phys. A 89, 667-671(2007).

    21. A. Ping Zhang, X.W. Chen, Jinhua Yan, Zu-guang Guan, Sailing He and H. Y. Tam, “Optimization and fabrication of stitched long-period gratings for gain flattening of ultrawide-band EDFAs,” IEEE Photon. Tech. Lett. 17, 2559-2561(2005).

    22. A. Ping Zhang, X.W. Chen, Zu-guang Guan, Sailing He, H. Y. Tam and W.H. Chung, “Optimization of step-changed long-period gratings for gain-flattening of EDFAs,” IEEE Photon. Tech. Lett. 17, 121-123 (2005).

    23.L.M. Tong, J.Y. Lou, R.R. Gattass, Sailing He, X.W. Chen, L. Liu, E. Mazur, “Assembly of silica nanowires on silica aerogels for microphotonic devices,” Nano Lett. 5, 259-262 (2005).