plasmonic metamaterials and optical holography (全息术 · 1962, laser transmission hologram of...
Post on 30-Jul-2020
0 Views
Preview:
TRANSCRIPT
Plasmonic Metamaterials and
Optical Holography (全息术)
Guixin Li (李贵新)
Department of Physics, Faculty of Science
Hong Kong Baptist University
28th April 2015
Light-Matter Interactions
Fundamental
Physics
Advanced
Optics
Plasmonic
Metamaterials
Target
1. Plasmonic Metamaterials
Roman Glass Cage cup (4th AD)
Lycurgus Cup (British Museum)
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, 691-692 (2000).
Lecture to the Royal Society, 7th Feb 1857.
Faraday discussed his experiments on metal colloidal solutions.
Michael Faraday, “Experimental relations of gold to light”, Phil.
Trans. R. Soc. Lond. 147, 145-181 (1857). Impact factor: 2.864
Recognition of Ruby Gold
the birth of modern nanotechnology
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
ruby
Plasmonics
W. A. Murray and W. L. Barnes, “Plasmonic Materials”, Adv. Mater.19, 3771-3782 (2007).
Scale: 300 nm
gold nanoparticle
Light scattering
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
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, 557-561 (2012).
Pixel size: 400 nm to 900 nm
Print color at the optical diffraction limit
Materials has properties that haven’t been found in Nature!
Meta-Materials
J. B. Pendry, D.Schurig, D. R. Smith, “Controlling Electromagnetic
Fields”, Science 312,1780-1782 (2006).
“After”, “beyond”
artificial “atom” Optical cloaking
output
input
My Plasmonic Metamaterials
Lattice Period: 300 nm-500nm
Gold „graphene‟?
silicon post
gold nanostructure
2. Optical Holography (whole)
Electron Holography
Dennis Gabor
Nobel Prize in Physics (1971)
Thomson Houston Co. (1934-1948)
Imperial College London (1949-1969)
The original objective was
an improved electron
microscope, capable of
resolving atomic lattices
and seeing single atoms.
1947 (patent GB685286).
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.
Basic Principle
J. Scheuer and Y. Yifat, “Holography: Metasurfaces make it
practical”, Nature Nanotechnology, 10, 296-298 (2015).
http://computer.howstuffworks.com/holographic-memory2.htm
2a. High Capacity Data Storage---Recording
2a. High Capacity Data Storage---Reading
http://computer.howstuffworks.com/holographic-memory2.htm
2b. Security Holograms
http://www.diytrade.com/china/pd/12761858/Fr
ee_shipping_visa_hologram_stickers.html
Unit Price: < 0.1 USD
Color hologram on VISA card
2c. Holographic 3-D Display
http://www.naledi3d.com/EON_3d.html
3-D projector on smart phone at the end of 2015!
Naked Eye Technology
3. Plasmonic Metamaterials and Optical
Holography
a. Better solution for Full
color 3-D display
True Color 3-D Hologram
M. Ozaki, J. Kato, S. Kawata, “Surface plasmon holography
with white light illumination”, 332, 218, Science (2011).
b. Control local phase
using sub-wavelength
element
Metamaterial Hologram
Stéphane Larouche, Yu-Ju Tsai, Talmage Tyler, Nan M. Jokerst and David R. Smith,
“Infrared metamaterial phase holograms,” 11, 450-454, Nature Materials (2012).
Can not control amplitude !
E
c. High Efficiency, Wide Angle and
Low-cost
G. Zheng, H. Mühlenbernd, M. Kenney, G. Li*, T. Zentgraf*, and S. Zhang*,
“Metasurface holograms reaching 80% efficiency”, Nature Nanotechnology 10,
308-312 (2015).
Metasurface makes it practical !
Optical Phase Controlled by Rotation
circularly polarized light and gold nanorod
2ie
X. Chen, et. al., Nature Comm. 3:1198 (2012).
Illustration of the unit-cell structure and its polarization conversion efficiency by
numerical simulations. The pixels are arranged with periods Px=300 nm and Py=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
MgF2 and gold film have thicknesses of h1=90 nm and h2=130 nm, respectively.
Unit Cell of Phase Element
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 550×300 pixels used for the generation of the hologram.
Computer Generated Hologram
Computer
Simulation
Experiment
Wavelength:
633 nm
Experiment
Wavelength:
780 nm
Results
SEM of gold nanorods
Projection Angle:
30 x 60 degrees
~82%
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
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 http://phys.org/ (C. N. Yang).
http://www.free-desktop-backgrounds.net/Nature-landscapes-
wallpapers/Sunset-backgrounds/Red-Sun-sunset.html
Optics in Our Life!
Rayleigh Scattering Mie Scattering in Beijing
Thank you
Start-up Grant and FRG II 13-14/020 from HKBU
top related