Ultrafast photochromism and bacteriochromism in one dimensional hybrid plasmonic photonic structures

Francesco Scotognella; Giuseppe M. Paternò; Ilka Kriegel; Silvio Bonfadini; Liliana Moscardi; Luigino Criante; Stefano Donini; Davide Ariodanti; Maurizio Zani; Emilio Parisini; Guglielmo Lanzani

doi:10.1117/12.2559455

1 April 2020 Ultrafast photochromism and bacteriochromism in one dimensional hybrid plasmonic photonic structures

Francesco Scotognella, Giuseppe M. Paternò, Ilka Kriegel, Silvio Bonfadini, Liliana Moscardi, Luigino Criante, Stefano Donini, Davide Ariodanti, Maurizio Zani, Emilio Parisini, Guglielmo Lanzani

Author Affiliations +

Proceedings Volume 11357, Fiber Lasers and Glass Photonics: Materials through Applications II; 113571G (2020) https://doi.org/10.1117/12.2559455
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

Hybrid plasmonic photonic structures combine the plasmonic response with the photonic band gap, holding promise for utilization as optical switches and sensors. Here, we demonstrate the active modulation of the optical response in such structures with two different external stimuli, e.g. laser pulses and bacteria. First, we report the fabrication of a miniaturized (5 x 5 mm) indium tin oxide (ITO) grating employing femtosecond laser micromachining, and we show the possibility to modulate the photonic band gap in the visible via ultrafast photoexcitation in the infrared part of the spectrum. Note that the demonstrated time response in the picosecond range of the spectral modulation have an industrial relevance. Moreover, we manufacture one-dimensional photonic crystals consisting of a solution-processed dielectric Bragg stack exposing a top-layer of bio-active silver. We assign the bacterial responsivity of the system to polarization charges at the Ag/bacterium interface, giving rise to an overall blue shift of the photonic band gap.

Conference Presentation

Citation Download Citation

Francesco Scotognella, Giuseppe M. Paternò, Ilka Kriegel, Silvio Bonfadini, Liliana Moscardi, Luigino Criante, Stefano Donini, Davide Ariodanti, Maurizio Zani, Emilio Parisini, and Guglielmo Lanzani "Ultrafast photochromism and bacteriochromism in one dimensional hybrid plasmonic photonic structures", Proc. SPIE 11357, Fiber Lasers and Glass Photonics: Materials through Applications II, 113571G (1 April 2020); https://doi.org/10.1117/12.2559455

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