Experimental Study of the Structural Effect on the Nanosecond Nonlinear Optical Response of O-Doped Polycyclic Aromatic Hydrocarbons,The Journal of Physical Chemistry A

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Experimental Study of the Structural Effect on the Nanosecond Nonlinear Optical Response of O-Doped Polycyclic Aromatic Hydrocarbons
The Journal of Physical Chemistry A ( IF 2.7 ) Pub Date : 2018-05-22 00:00:00 , DOI: 10.1021/acs.jpca.8b02737
Ioannis Papadakis _{1,

2} , Zoi Bouza _{1,

2} , Aristeidis Stathis _{1,

2} , Ioannis Orfanos _{1,

2} , Stelios Couris _{1,

2} , Tanja Miletić ₃ , Davide Bonifazi ₃

Affiliation

The nonlinear optical response of some O-doped polycyclic aromatic hydrocarbons (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 to exhibit large saturable absorption and negative sign nonlinear refraction under visible excitation, increasing both with the addition of naphthalene 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 the solid state, confirming their high potential for optoelectronic and photonic applications.

中文翻译：

O掺杂多环芳烃对纳秒非线性光学响应结构效应的实验研究

为了了解结构效应对其非线性光学响应的影响，本工作系统地研究了一些O掺杂多环芳烃（PAH）的非线性光学响应。在这种情况下，在4 ns可见光（532 nm）和红外光（1064 nm）激光激发下测量了这些PAH的三阶非线性光学性质。发现掺O的PAH在可见光激发下表现出大的可饱和吸收和负号非线性折射，随萘单元的增加和O原子数的增加而增加。发现它们的非线性光学响应在红外激发下可以忽略不计。对这些PAH的薄膜进行的类似测量表明，即使在固态下，它们也可以保持较大的非线性光学响应，

更新日期：2018-05-22

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