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Collective resonances in plasmonic crystals Jaime Gómez Rivas www.plasmonics.eu www.amolf.nl

Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle

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Page 1: Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle

Collective resonances in plasmonic crystalsJaime Gómez Rivaswww.plasmonics.eup

www.amolf.nl

Page 2: Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle
Page 3: Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle

ContentsSingle plasmonic antennas: light emissionPl i l fPlasmonic crystals of antennas: emission and sensingg

Page 4: Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle

Ackowledgements

Gabriele VecchiJose A. Sánchez Gil Peter Offermans

Mercedes CregoVincenzo GianniniOtto MuskensM tij S h f

Mercedes CregoSywert Brongersma

Martijn SchaafsmaSaid R. Rodriguez

Microphotonic Light SourcesMicrophotonic Light Sources

Page 5: Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle

Localized plasmon resonancespMetal nanoparticle (L<<): resonant response dominated by material by material

+ +

)(22

4 3

m

ma

Nanoantenna (L): resonant response determined by

‐ ‐ )(2 spm

Nanoantenna (L): resonant response determined by material and geometry

+ +

‐ ‐

Page 6: Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle

Dimers: near‐field couplingL

+ +‐‐

+ +‐‐

+ + ‐‐

Atto 680 in PVB

O.L. Muskens… JGR, Opt. Express (2007)  

Page 7: Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle

Dimer antennas: emissionPhotoluminescence enhancementL = 80 nm nm = 730 nmL = 80 nm, nm SPR em = 730 nm

1 m

O.L. Muskens… JGR, Nano Letters (2007)  

Page 8: Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle

Dimer antennas: emissionFluorescence decay

1 2N t t

1. 2.1.

2.

Next to antenna

0.

12At antenna

• Fivefold enhancement of 2 with respect to 0• 1 = 0

Page 9: Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle

Dimer antennas: emissionDipole radiating at 730 nm

emen

te en

hanc

Antenna length (nm)

Rat

Antenna length (nm)

Improvement of quantum efficiency

Giannini, …JGR, Sanchez Gil, JOSA B (2009)  

Page 10: Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle

Arrays of particles: Far‐field coupling

1.0Localized SP

(±1,0) Rayleigh anomaly

ancePol

0.5

ansm

itt Surface latticeresonance

0 0

Tra

W= 85 nm, L= 415 nmax = 500 nm, ay = 300 nm

600 800 10000.0

Wavelength (nm)Wavelength (nm)Quartz

Page 11: Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle

Arrays of particles: historyCarron et al. (JOSA B, 1986) Schatz et al. (J. Chem Phys, 2004)Kravets et al. (PRL 2008), Crozier et al. (APL 2008), Kravets et al. (PRL 2008), Crozier et al. (APL 2008), Barnes et al. (PRL 2008), Vecchi at al. (PRL 2009)

Page 12: Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle

Surface lattice resonances

0 012(1,0)(‐2,0)

0 010

0.012

nm-1)

0 008

0.010

(rad

n

ce10.008

/

c

Tran

smitt

anc

0

0.5

1

(‐1,0)

0.004 0.008 k// (rad nm-1)

0

//

Vecchi … JGR, Phys. Rev. B (2009)  

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Emission

Transmission vs. angle incidenceEmission vs. angle emission

30

40

cem

ent

n (d

eg)

57

30

40

0 5

1

ce (d

eg)

mita

nce

20

enha

nanc

fem

issi

o

135

20 0

0.5

inci

denc

Tran

sm

700 8000

10

PL

e

Ang

le o

f

0

10

Angl

e of

700 800A

Wavelength (nm)700 800

0A

Wavelength (nm)

Enhanced  and directional emission

Vecchi … JGR, Phys. Rev. Lett. (2009) and (2010)  

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Surface lattice resonance sensor

90

n = 0.04290

e (%

)

nF M /60

tanc

e

FoM = 1.4 FoM

30

nsm

itt

F M 25

600 700 800 9000Tr

an FoM = 25

600 700 800 900

Wavelength (nm)

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Universal scaling of FoM

Offermans,…, JGR, ACS‐Nano (2011)

Page 16: Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle

Universal scaling of FoM

Offermans,…, JGR, ACS‐Nano (2011)

Page 17: Collective resonances in plasmonic crystalscmp.physics.iastate.edu/.../GomezRivas.pdf · 1 c e (deg) m itance 20 e nhanan f emissio 1 3 20 0 0.5 inciden Trans 700 800 0 10 PL A ngle

ConclusionsConclusionsDemonstrated enhanced emission of dye moleculesfrom single nanoantennas

The enhancement of the emission can be improvedby collective resonances in periodic arrays of antennas

These collective resonances improve the FoM of plasmonic refractive index sensors