Near-field imaging and spectroscopy of plasmonic cavities
(Conference Presentation)

Deirdre Kilbane

doi:10.1117/12.2236884

9 November 2016 Near-field imaging and spectroscopy of plasmonic cavities (Conference Presentation)

Deirdre Kilbane

Proceedings Volume 9921, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIV; 992117 (2016) https://doi.org/10.1117/12.2236884
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

Photoemission electron microscopy (PEEM) is an attractive and advantageous technique in the field of plasmonics. Whilst surface plasmons are excited at the metal dielectric interface by light, it is the near-field photoelectron distribution that is imaged, with <40 nm resolution, and thereby the optical diffraction limit is overcome. Additionally parallel acquisitioning makes time-resolved (TR) PEEM1 possible. PEEM therefore allows us to investigate light-matter interactions in localized, propagating and hybridized surface plasmons leading to advances in fundamental research and technological applications. In addition to near-field imaging it is also possible to perform near-field spectroscopy. A tunable short pulse optical parametric oscillator (OPO) light source can be combined with PEEM. We demonstrate this technique with arrays of whispering gallery mode (WGM) cavities2 fabricated with focused ion beam milling (FIB) on gold surfaces. Characteristic spectral peaks and near-field mode distributions result from the coherent excitation of different plasmon resonances. This near-field interference of modes allows us to control the emission from these WGM cavities3. Additionally recent advances in ultrafast near-field microscopy and spectroscopy will be discussed. [1] M. Bauer, C. Wiemann, J. Lange, D. Bayer, M. Rohmer and M. Aeschlimann, Appl. Phys. A 88 473 (2007) [2] E. J. Vesseur, F. J. García de Abajo and A. Polman Nano Letters 9 3147 (2009) [3] P. Melchior, D. Kilbane, E. J. Vesseur, A. Polman and M. Aeschlimann Optics Express 23, 31619 (2015)

Conference Presentation

Citation Download Citation

Deirdre Kilbane "Near-field imaging and spectroscopy of plasmonic cavities (Conference Presentation)", Proc. SPIE 9921, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIV, 992117 (9 November 2016); https://doi.org/10.1117/12.2236884

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Near field

Imaging spectroscopy

Spectroscopy

Plasmonics

Near field optics

Optical parametric oscillators

Surface plasmons

Show All Keywords

Keywords/Phrases

Search In:

Publication Years