Design and implementation of planar reflection spiral phase plate for beams with orbital angular momentum

In this study the authors report on a design of an offset-fed reflection planar spiral phase plate (SPP) to generate electromagnetic waves with orbital angular momentum (OAM). Detailed design guidelines and measurement procedures are given, respectively in this study. Through the use of a phase tuning technique, the proposed planar SPP converts incident spherical wave to beams with desired helical phase front. An experimental mode-2 OAM beam generation setup working at 94 GHz has been performed to verify the design method. Typical OAM phase and intensity patterns can be observed in the experiment. The OAM spectrum calculated from this experiment phase information proves the high purity performance of the OAM beams that this approach generated.

[1]  Federico Capasso,et al.  Holographic detection of the orbital angular momentum of light with plasmonic photodiodes , 2012, Nature Communications.

[2]  Bruno Maffei,et al.  q-plate for millimeter-wave orbital angular momentum manipulation. , 2013, Applied optics.

[3]  S. Barnett,et al.  Free-space information transfer using light beams carrying orbital angular momentum. , 2004, Optics express.

[4]  Shilie Zheng,et al.  A Flat-Lensed Spiral Phase Plate Based on Phase-Shifting Surface for Generation of Millimeter-Wave OAM Beam , 2016, IEEE Antennas and Wireless Propagation Letters.

[5]  Fabrizio Tamburini,et al.  Twisting of light around rotating black holes , 2011, 1104.3099.

[6]  Wanyi Gu,et al.  Generating the orbital angular momentum of radio frequency signals using optical-true-time-delay unit based on optical spectrum processor. , 2014, Optics letters.

[7]  A. Willner,et al.  Terabit free-space data transmission employing orbital angular momentum multiplexing , 2012, Nature Photonics.

[8]  Sophie LaRochelle,et al.  Design, fabrication and validation of an OAM fiber supporting 36 states. , 2014, Optics express.

[9]  Robert W Boyd,et al.  Rapid generation of light beams carrying orbital angular momentum. , 2013, Optics express.

[10]  H. Then,et al.  Utilization of photon orbital angular momentum in the low-frequency radio domain. , 2007, Physical review letters.

[11]  R. A. Beth.  Mechanical Detection and Measurement of the Angular Momentum of Light , 1936 .

[12]  Denis Garoli,et al.  Bilayer holey plasmonic vortex lenses for the far field transmission of pure orbital angular momentum light states. , 2014, Optics letters.

[13]  M. Padgett,et al.  The generation of free-space Laguerre-Gaussian modes at millimetre-wave frequencies by use of a spiral phaseplate , 1996 .

[14]  Siyuan Yu,et al.  Orbital angular momentum vertical-cavity surface-emitting lasers , 2015 .

[15]  Sean Victor Hum,et al.  Reconfigurable Reflectarrays and Array Lenses for Dynamic Antenna Beam Control: A Review , 2013, IEEE Transactions on Antennas and Propagation.

[16]  W. Hong,et al.  Generation of Electromagnetic Waves with Arbitrary Orbital Angular Momentum Modes , 2014, Scientific Reports.

[17]  A. Vaziri,et al.  Entanglement of the orbital angular momentum states of photons , 2001, Nature.

[18]  S. Cabrini,et al.  Laser trapping and micro-manipulation using optical vortices , 2004, Digest of Papers. 2004 International Microprocesses and Nanotechnology Conference, 2004..

[19]  Johannes Courtial,et al.  Fourier relationship between angular position and optical orbital angular momentum. , 2006, Optics express.

[20]  Shilie Zheng,et al.  Multiplexed Millimeter Wave Communication with Dual Orbital Angular Momentum (OAM) Mode Antennas , 2015, Scientific Reports.

[21]  Stuart D. Walker,et al.  4-Gbps Uncompressed Video Transmission over a 60-GHz Orbital Angular Momentum Wireless Channel , 2013, IEEE Wireless Communications Letters.

[22]  J. P. Woerdman,et al.  Orbital angular momentum of light and the transformation of Laguerre-Gaussian laser modes. , 1992, Physical review. A, Atomic, molecular, and optical physics.

[23]  Ebrahim Karimi,et al.  Quantum information transfer from spin to orbital angular momentum of photons. , 2008, Physical review letters.

[24]  Robert Fickler,et al.  Quantum orbital angular momentum of elliptically symmetric light , 2013 .