Plasmonic Imaging: "A New Lens into the Nano-World” The Mantra: Plasmon wave imaging: Optical...
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Plasmonic Imaging: "A New Lens into the Nano-World” The Mantra: Plasmon wave imaging: cal frequencies, but with X-ray wavelen Josh Conway Thomas Szkopek Eli Yablonovitch Xiang Zhang What’s Next?
description
What’s Next?. Plasmonic Imaging: "A New Lens into the Nano-World” The Mantra: Plasmon wave imaging: Optical frequencies, but with X-ray wavelengths! Josh Conway Thomas Szkopek Eli Yablonovitch Xiang Zhang. light. image plane. k. k. plasmon wave. e. e. >0. >0. E. E. z. z. - PowerPoint PPT Presentation
Transcript of Plasmonic Imaging: "A New Lens into the Nano-World” The Mantra: Plasmon wave imaging: Optical...
Plasmonic Imaging: "A New Lens into the Nano-World”
The Mantra: Plasmon wave imaging:Optical frequencies, but with X-ray wavelengths!
Josh ConwayThomas SzkopekEli Yablonovitch
Xiang Zhang
What’s Next?
light
plasmon wave
imag
epl
ane
Surface plasmons
double-sided surface plasmons
- - -
metal
+++
air
E+++ - - -- - - kx
kz
- - -
metal
+++
air
E+++ - - -- - - kx
kz
0.0 0.1 0.2 0.3 0.4 0.5 0.6
0.0
0.5
1.0
1.5
2.0
2.5
3.00.52361.0472 2.09442.61803.4907 5.2360 6.9813 10.4720200
100
50
40
30 20 15 10
0.1 0.2 0.3 0.4 0.5 0.6
0.5
1.0
1.5
2.0
2.5
Plasmon Wave-Vector (2/wavelength in nm)
Plas
mon
Ene
rgy
in e
VPlasmon Wavelength in nmh
k
t=thickness of metal film
t=1nmt=2nm
t=5nmt=20nm
2.8eV
Optical frequencies, but with X-ray wavelengths!
Thin-film plasmon imaging opticsdouble convex lens(high index)
double concave lens(low index)
photoresistsilicon
plas
mon
wav
e
sapphire plas
mon
wav
e+
++
+-
--
-
grat
ing
coup
ler
light h =2.5eV
n9
n8
n7
n6
n2
n5
n4
n3
n1
n0
n9> n8> >n1>n0
Rayleigh Limit is /n9
Final Objective Lens
light
light
photoresistsilicon
plas
mon
wav
e
sapphire plas
mon
wav
e+
++
+-
--
-
grat
ing
coup
ler
light h =2.5eV
dimple lens
in-coupling grating
out-coupling edge
Plasmon imaging in a silver film far-field fromconventional lens
light
metal film supports plasmon waves
photoresist
object
imageconventional refractive lens
plasmon wave
plasmon lens
curved grating coupler
imag
epl
ane
imag
epl
ane
Plasmon wave imaging:Optical frequencies, but with X-ray wavelengths!
light
silicon
object
conventionalrefractive lens
plasmon wave
grating coupler
Plasmon wave imaging:Optical frequencies, but with X-ray wavelengths!
image
mirror
grating coupler
photoresist
slider
0.0 0.1 0.2 0.3 0.4 0.5 0.6
0.0
0.5
1.0
1.5
2.0
2.5
3.00.52361.0472 2.09442.61803.4907 5.2360 6.9813 10.4720200
100
50
40
30 20 15 10
0.1 0.2 0.3 0.4 0.5 0.6
0.5
1.0
1.5
2.0
2.5
Plasmon Wave-Vector (2/wavelength in nm)
Plas
mon
Ene
rgy
in e
VPlasmon Wavelength in nmh
k
t=thickness of metal film
t=1nmt=2nm
t=5nmt=20nm
2.8eV
Optical frequencies, but with X-ray wavelengths!
0 20 40 60 80 1000
100
200
300
400 1.5 eV
2.0 eV
2.5 eV
0
100
200
300
20 40
400
60 80
Plas
mon
Wav
elen
gth
in n
m
Silver Film Thickness in nm
Silver Film on Sapphire
t
p
0 1 2 3 4 5020406080
kReal
kIm
Real Wave-number rad/nm
Imag
inar
y W
ave-
num
ber i
n ra
d/nm
Plasmon wavelength in nm
Imaginary versus Real part of wave vector:
1.00
0.01
0.02
0.03
0.04
50 20 15 5
1.5 eV
2.5 eV
2.0 eV
0.05
0. 5
200 10
Q ~ 20
p
Suspension
Head Stack Assembly( Gimbal, Slider)
Read-Write Head )
Flex Cable
Data Track( track position information is
embedded in the disk sectors )
Pivot
Disk
E-block
Spindle
Voice Coil Motor (VCM)
Suspension
Head Stack Assembly( Gimbal, Slider)
Read-Write Head )
Flex Cable
Data Track( track position information is
embedded in the disk sectors )
Pivot
Disk
E-block
Spindle
Voice Coil Motor (VCM)
30nm
1mm
dc Magnetic Dipole Disk Drive ac Electric Dipole Disk Drive
sapphire slider
slider suspension
image from
modulator array
photoresist
silicon
plasmon lens
SIDE VIEW
light
silicon
object
conventionalrefractive lens
plasmon wave
grating coupler
Plasmon wave imaging:Optical frequencies, but with X-ray wavelengths!
image
mirror
grating coupler
photoresist
slider
+ + +- - -
+ + +- - -
+ + +
++- - -
- -+++
- - -+ + +
- - -
- - -+ + +
C
L
v
v
v
v
2
2
2
nqJJdtd
mEnq
nqdtdmEnq
qdtdmEq
dtdmqE
maF
p
p
p
p
where
dtddtddtd
mnq
JE
LC1
LengthArea ~ C ecapacitanc that notice
LinductancekineticthecalledisArea
Length1L
IArea
Length1V
IArea
LengthV
AreaI
LengthV
I/Area and V/Length,But
2
2
2
2
λ
I(ω)+++++
++++
- - -- -
- - - -
anti-bodiesanti-gensDNA fragmentsRNAtoxins
1 photon in a 1nm1nm1nm capacitorproduces an electric field= 108 Volts/cm electric field= 1Volt/AngstromThis is enough for a giant optical nonlinearity!
Thin capacitors can sustain very large electric fields108Volts/cm1Volt/Angstrom
three terminal optical device
di-electric
wave-guide
plas
mon
ic
k
wire
grating
in-coupler
grating
out-coupler
anti-bodiesanti-gensDNA fragmentsRNAtoxins
capacitive bio-sensor
nonlinearmediumλ
0
1
2
3
4
-1 -0 -0 -0 -0 -0 0 0 0 0 0 1 1
Plas
mon
Ene
rgy
in e
V
0
1
2
3
4
h
0 0.1 0.2 0.3 0.4 0.5 0.6Plasmon Wave-Vector (2/wavelength in nm)
-0.5-0.6 k
Plasmon Wavelength in nm
100100 5050 2020 1010
-0.4 -0.3 -0.2 -0.1
Al2O3
Air
- - -
metal+++
air
E+++ - - -- - - kx
kz
- - -
metal+++
air
E+++ - - -- - - kx
kz
thin Al2O3
0
1
2
3
4
-1 -0 -0 -0 -0 -0 0 0 0 0 0 1 1
Plas
mon
Ene
rgy
in e
V
0
1
2
3
4
h
0 0.1 0.2 0.3 0.4 0.5 0.6Plasmon Wave-Vector (2/wavelength in nm)
-0.5-0.6 k
d=1nmd=2nm
d=5nmd=10nm
d=20nm
Plasmon Wavelength in nm
100100 5050 2020 1010
-0.4 -0.3 -0.2 -0.1
Al2O3
silver
aird
