Experimental study of the structural effect on the nanosecond nonlinear optical response of O-doped polycyclic aromatic hydrocarbons (PAHs)

Papadakis, Ioannis, Bouza, Zoi, Stathis, Aristeidis, Orfanos, Ioannis, Couris, Stelios, Miletic, Tanja and Bonifazi, Davide ORCID: https://orcid.org/0000-0001-5717-0121 2018. Experimental study of the structural effect on the nanosecond nonlinear optical response of O-doped polycyclic aromatic hydrocarbons (PAHs). Journal of Physical Chemistry A 122 (23) , pp. 5142-5152. 10.1021/acs.jpca.8b02737

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Abstract

The nonlinear optical response of some O-doped PAHs is systematically investigated in the present work aiming to understand the influence of structural effects on their nonlinear optical response. In that view, the third-order nonlinear optical properties of these PAHs were measured under 4 ns, visible (532 nm) and infrared (1064 nm) laser excitation. The O-doped PAHs were found exhibiting large saturable absorption and negative sign nonlinear refraction under visible excitation, both increasing with the addition of naphtalene units and with the number of O-atoms. Their nonlinear optical response was found to be negligible under infrared excitation. Similar measurements performed on thin films of these PAHs have shown that they maintain their large nonlinear optical response even in solid state, confirming their high potential for opto-electronic and photonic applications.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Publisher:	American Chemical Society
ISSN:	1089-5639
Date of First Compliant Deposit:	29 May 2018
Date of Acceptance:	22 May 2018
Last Modified:	12 Nov 2024 13:15
URI:	https://orca.cardiff.ac.uk/id/eprint/111830

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