Plasmonic Metamaterials and Optical Holography ( 全息术 )

Transcription

1 Plasmonic Metamaterials and Optical Holography ( 全息术 ) Guixin Li ( 李贵新 ) Department of Physics, Faculty of Science Hong Kong Baptist University 28 th April 2015

2 Light-Matter Interactions Target Advanced Optics Plasmonic Metamaterials Fundamental Physics

3 1. Plasmonic Metamaterials

4 Lycurgus Cup (British Museum) Roman Glass Cage cup (4th AD) F. E. Wagner, S. Haslbeck, L. Stievano, S. Calogero, Q. A. Pankhurst, and K. P. Martinek, Before striking gold in gold-ruby glass, Nature 407, (2000).

5 Recognition of Ruby Gold the birth of modern nanotechnology ruby Letter from Michael Faraday to his friend Prof C. F. Schönbein of Basle he wrote I have been occupying myself with gold this summer; I did not feel headstrong enough for stronger things. This work has been of the Mountain and Mouse fashion; and if I ever publish it and it comes to your sight I dare say you will think so colloidal gold nanoparticle Lecture to the Royal Society, 7 th Feb Faraday discussed his experiments on metal colloidal solutions. Michael Faraday, Experimental relations of gold to light, Phil. Trans. R. Soc. Lond. 147, (1857). Impact factor: 2.864

6 Plasmonics gold nanoparticle Light scattering W. A. Murray and W. L. Barnes, Plasmonic Materials, Adv. Mater.19, (2007). Scale: 300 nm

7 Plasmonic Color Filter Pixel size of the CCD camera will be much smaller! T. Xu, et al. Plasmonic nanoresonators for high-resolution colour filtering and spectral imaging, Nature Communications 1, 59 (2010). Scale bar: 10 um

8 Print color at the optical diffraction limit Pixel size: 400 nm to 900 nm K. Kumar, H. Duan, R. S. Hegde, Samuel C. W. Koh, J. N. Wei, J. K. W. Yang, Printing colour at the optical diffraction limit, Nature Nanotechnology, 7, (2012).

9 Meta-Materials After, beyond Materials has properties that haven t been found in Nature! output input artificial atom Optical cloaking J. B. Pendry, D.Schurig, D. R. Smith, Controlling Electromagnetic Fields, Science 312, (2006).

10 My Plasmonic Metamaterials Gold graphene? silicon post Lattice Period: 300 nm-500nm gold nanostructure

11 2. Optical Holography (whole)

12 Electron Holography The original objective was an improved electron microscope, capable of resolving atomic lattices and seeing single atoms (patent GB685286). Dennis Gabor Nobel Prize in Physics (1971) Thomson Houston Co. ( ) Imperial College London ( )

13 Optical Holography ( from1960) 1962, laser transmission hologram of 3D object. 1962, white light reflection hologram of 3D object. 1968, white light transmission hologram for rainbow 3D imaging 1972, Lioyd Cross invented white light transmission hologram for 3D moving movie.

14 Basic Principle J. Scheuer and Y. Yifat, Holography: Metasurfaces make it practical, Nature Nanotechnology, 10, (2015).

15 2a. High Capacity Data Storage ---Recording

16 2a. High Capacity Data Storage ---Reading

17 2b. Security Holograms Unit Price: < 0.1 USD Color hologram on VISA card ee_shipping_visa_hologram_stickers.html

18 2c. Holographic 3-D Display Naked Eye Technology 3-D projector on smart phone at the end of 2015!

19 3. Plasmonic Metamaterials and Optical Holography

20 a. Better solution for Full color 3-D display

21 True Color 3-D Hologram M. Ozaki, J. Kato, S. Kawata, Surface plasmon holography with white light illumination, 332, 218, Science (2011).

22 b. Control local phase using sub-wavelength element

23 Metamaterial Hologram E Can not control amplitude! Stéphane Larouche, Yu-Ju Tsai, Talmage Tyler, Nan M. Jokerst and David R. Smith, Infrared metamaterial phase holograms, 11, , Nature Materials (2012).

24 c. High Efficiency, Wide Angle and Low-cost Metasurface makes it practical! G. Zheng, H. Mühlenbernd, M. Kenney, G. Li*, T. Zentgraf*, and S. Zhang*, Metasurface holograms reaching 80% efficiency, Nature Nanotechnology 10, (2015).

25 Optical Phase Controlled by Rotation circularly polarized light and gold nanorod X. Chen, et. al., Nature Comm. 3:1198 (2012). e i2

26 Unit Cell of Phase Element Illustration of the unit-cell structure and its polarization conversion efficiency by numerical simulations. The pixels are arranged with periods P x =300 nm and P y =300 nm. The nanorod has a length of L=200 nm, a width of W=80 nm and a height of H=30 nm. The MgF 2 and gold film have thicknesses of h 1 =90 nm and h 2 =130 nm, respectively.

27 Computer Generated Hologram Working principle and phase distribution of the periodic hologram. a, Illustration of the reflective nanorod-based CGH under a circularly polarized incident beam. b, Target image with 256 greyscale levels and a size of pixels used for the generation of the hologram.

28 Results Projection Angle: 30 x 60 degrees ~82% SEM of gold nanorods Computer Simulation Experiment Wavelength: 633 nm Experiment Wavelength: 780 nm

29 Single step Fabrication and Low-cost Multi-steps Fabrication 16-level Phase Profile Price: 400,000 HKD 1 mm x 1mm, 16 steps glass Single-step Fabrication 16 level Phase Profile Price: 5,000 HKD 1 mm x 1mm, 16 steps

30 4. Experiences on Research Should not forget the textbook in our library; Pay more attention to the science in our daily life (Sir Michael Berry)! Try to evaluate your and others research positively! Have a look at the newest research on (C. N. Yang).

31 Optics in Our Life! Rayleigh Scattering Mie Scattering in Beijing

32 Thank you Start-up Grant and FRG II 13-14/020 from HKBU