Coupling of light from an optical fiber taper into silver nanowires (2009)
Dong, Chun-Hua, Ren, Xi-Feng, Yang, Rui, Duan, Jun-Yuan, Guan, Jian-Guo, Guo, Guang-Can, ...
We report the coupling of photons from an optical fiber taper to surface plasmon modes of silver nanowires. The launch of propagating plasmons can be realized not only at ends of the nanowires, but...
Coupling of higher-mode-light into a single sliver nanowire (2009)
Guo, Guo-Ping, Yang, Rui, Ren, Xi-Feng, Wang, Lu-Lu, Shi, Hong-Yan, Hu, Bo, ...
Coupling of higher-order-mode light into a single sliver nanowire and the degree of the coupling can be controlled by adjusting the light polarization, showing that nanowire waveguide has no request...
Transmission of doughnut light through a bull's eye structure (2009)
Wang, Lu-Lu, Ren, Xi-Feng, Yang, Rui, Guo, Guang-Can, Guo, Guo-Ping
We experimentally investigate the extraordinary optical transmission of doughnut light through a bull's eye structure. Since the intensity is vanished in the center of the beam, almost all the energy...
Quantum Bus of Metal Nanowire with Surface Plasmon Polaritons (2009)
Guo, Guo-Ping, Lin, Zhi-Rong, Tu, Tao, Ren, Xi-Feng, Guo, Guang-Can
Plasmonic circuits, providing the ability to integrate electronics and optics on the nanoscale, may lead an exciting application to carry classical information between microprocessors in integrated...
Linear-Optical Implementation of Perfect Discrimination between Single-bit Unitary Operations (2008)
Zhang, Pei, Peng, Liang, Wang, Zhi-Wei, Ren, Xi-Feng, Liu, Bi-Heng, Huang, Yun-Feng, ...
Discrimination of unitary operations is a fundamental quantum information processing task. Assisted with linear optical elements, we experimentally demonstrate perfect discrimination between...
Interference of surface plasmon polaritions controlled by the phase of incident light (2007)
Ren, Xi-Feng, Guo, Guo-Ping, Huang, Yun-Feng, Wang, Zhi-Wei, Zhang, Pei, Guo, Guang-Can
Interference patterns of surface plasmon polaritons(SPPs) are observed in the extraordinary optical transmission through subwavelength holes in optically thick metal plate. It is found that the phase...
Polarization properties of subwavelength hole arrays consisting of rectangular holes (2007)
Ren, Xi-Feng, Zhang, Pei, Guo, Guo-Ping, Huang, Yun-Feng, Wang, Zhi-Wei, Guo, Guang-Can
Influence of hole shape on extraordinary optical transmission was investigated using hole arrays consisting of rectangular holes with different aspect ratio. It was found that the transmission could...
Removal of surface plasmon polariton eigenmodes degeneracy (2007)
Ren, Xi-Feng, Guo, Guo-Ping, Zhang, Pei, Huang, Yun-Feng, Wang, Zhi-Wei, Guo, Guang-Can
The effect of the tilt angle of metal film on the transmissivity of subwavelength holes in optically thick metal film is investigated. The transmission efficiency is found can be highly dependent on...
Ren, Xi-Feng, Guo, Guo-Ping, Huang, Yun-Feng, Wang, Zhi-Wei, Guo, Guang-Can
Quadrate hole array is explored to study the influence of unsymmetrical periodicity on extraordinary optical transmission through periodic arrays of subwavelength holes. It is found that the...
Experimental entanglement verification and quantification via uncertainty relations (2006)
Wang, Zhi-Wei, Huang, Yun-Feng, Ren, Xi-Feng, Zhang, Yong-Sheng, Guo, Guang-Can
We report on experimental studies on entanglement quantification and verification based on uncertainty relations for systems consisting of two qubits. The new proposed measure is shown to be...
Linear Optical Implemention of a Quantum Network for Quantum Estimation (2006)
Wang, Zhi-Wei, Li, Jian, Huang, Yun-Feng, Zhang, Yong-Sheng, Ren, Xi-Feng, Zhang, Pei, ...
We present a scheme for simulating the quantum network of quantum estimation proposed by A. K. Ekert et al. [Phys. Rev. Lett. 88, 217901 (2002)]. We experimentally implement the scheme with linear...
Plasmon assisted transmission of high dimensional orbital angular momentum entangled state (2006)
Ren, Xi-Feng, Guo, Guo-Ping, Huang, Yun-Feng, Li, Chuan-Feng, Guo, Guang-Can
We present an experimental evidence that high dimensional orbital angular momentum entanglement of a pair of photons can be survived after a photon-plasmon-photon conversion. The information of...
Spatial mode properties of plasmon assisted transmission (2006)
Ren, Xi-Feng, Guo, Guo-Ping, Huang, Yun-Feng, Wang, Zhi-Wei, Guo, Guang-Can
Orbital angular momentum of photons is explored to study the spatial mode properties of plasmon assisted transmission process. We found that photons carrying different orbital angular momentums have...
Observation of the Preservation of the Two-Photon Coherence in Plasmon-assisted Transmission (2005)
Guo, Guo-Ping, Ren, Xi-Feng, Huang, Yun-Feng, Li, Chuan-Feng, Ou, Zhe-Yu, Guo, Guang-Can
We experimentally study two-photon coherence in plasmon-assisted transmission with a two-photon Mach-Zehnder (MZ) interferometer. Two collinear photons of identical or orthogonal polarization are...
Wang, Zhi-Wei, Zhou, Xiang-Fa, Huang, Yun-Feng, Zhang, Yong-Sheng, Ren, Xi-Feng, Guo, Guang-Can
We experimentally demonstrate optimal entanglement distillation from two forms of two-qubit mixed states under local filtering operations according to the constructive method intruduced by F....
Engineering of multi-dimensional entangled states of photon pairs using hyper-entanglement (2005)
Ren, Xi-Feng, Guo, Guo-Ping, Li, Jian, Li, Chuan-Feng, Guo, Guang-Can
Multi-dimensional entangled states have been proven to be more powerful in some quantum information process. In this paper, down-converted photons from spontaneous parametric down conversion(SPDC)...
Manipulating quantum states with aspheric lenses (2004)
Wang, Zhi-Wei, Ren, Xi-Feng, Huang, Yun-Feng, Zhang, Yong-Sheng, Guo, Guang-Can
We present an experimental demonstration to manipulate the width and position of the down-converted beam waist. Our results can be used to engineer the two-photon orbital angular momentum (OAM)...
Experimental Teleportation of a Quantum Controlled-NOT Gate (2004)
Huang, Yun-Feng, Ren, Xi-Feng, Zhang, Yong-Sheng, Duan, Lu-Ming, Guo, Guang-Can
Teleportation of quantum gates is a critical step for implementation of quantum networking and teleportation-based models of quantum computation. We report an experimental demonstration of...
Entanglement of the Hermite-Gaussian modes states of photons (2004)
Ren, Xi-Feng, Guo, Guo-Ping, Li, Jian, Guo, Guang-Can
We found that the Hermit-Gaussian(HG) modes of the down converted beams from the spontaneous parametric down conversion are quasi-conserved and the generated photon pairs are HG modes entangled for...
Orbital angular momentum of the down converted photons (2003)
Ren, Xi-Feng, Guo, Guo-Ping, Yu, Bo, Li, Jian, Guo, Guang-Can
We calculate the relative amplitude of orbital angular momentum (OAM) entangled photon pairs from the spontaneous parametric down conversion. The results show that the amplitude depends on both the...