Nanoscale multipolar chromophores for optical limiting in the visible-NIR range based on multiphoton absorption

Olivier Mongin; Marina Charlot; Claudine Katan; Laurent Porres; Manuel Parent; Thomas Pons; Jerome Mertz; Mireille Blanchard-Desce

doi:10.1117/12.559937

15 October 2004 Nanoscale multipolar chromophores for optical limiting in the visible-NIR range based on multiphoton absorption

Olivier Mongin, Marina Charlot, Claudine Katan, Laurent Porres, Manuel Parent, Thomas Pons, Jerome Mertz, Mireille Blanchard-Desce

Author Affiliations +

Proceedings Volume 5516, Nonlinear Optical Transmission and Multiphoton Processes in Organics II; (2004) https://doi.org/10.1117/12.559937
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

A series of structurally-related multipolar chromophores of different symmetry (dipolar, quadrupolar, octupolar, dendritic...), and shape (rod-like, Y-shaped...) propeller-shaped, were investigated for optical power limiting based on multiphoton absorption processes. Their design is based on the functionalization of nanoscale linear or branched conjugated backbones with electro-active (i.e. electron-releasing or electron-withdrawing) peripheral and core/node groups. Their two-photon absorption (TPA) spectra were determined by investigating their two-photon-excited fluorescence properties in the NIR region using pulsed excitation in the femtosecond regime. These studies provide evidence that the charge symmetry plays an important role, the quadrupolar chromophores leading to giant TPA cross-sections in the visible red. Furthermore, modulation of the nonlinear absorptivity/transparency/photostability trade-off can be achieved by playing on the nature of the electroactive groups and of the spacers. Interestingly, higher-order charge symmetries and branched structures provide an innovative route for TPA amplification and/or spectral broadening in the NIR region.

Citation Download Citation

Olivier Mongin, Marina Charlot, Claudine Katan, Laurent Porres, Manuel Parent, Thomas Pons, Jerome Mertz, and Mireille Blanchard-Desce "Nanoscale multipolar chromophores for optical limiting in the visible-NIR range based on multiphoton absorption", Proc. SPIE 5516, Nonlinear Optical Transmission and Multiphoton Processes in Organics II, (15 October 2004); https://doi.org/10.1117/12.559937

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