Non-linear optics of nano-scale pentacene thin film

作者：Yahia I S; Alfaify S; Jilani Asim^*; Abdel wahab M Sh; Al Ghamdi Attieh A; Abutalib M M; Al Bassam A; El Naggar A M

来源：Applied Physics B: Lasers and Optics , 2016, 122(7): 191.

DOI：10.1007/s00340-016-6467-z

We have found the new ways to investigate the linear/non-linear optical properties of nanostructure pentacene thin film deposited by thermal evaporation technique. Pentacene is the key material in organic semiconductor technology. The existence of nano-structured thin film was confirmed by atomic force microscopy and X-ray diffraction. The wavelength-dependent transmittance and reflectance were calculated to observe the optical behavior of the pentacene thin film. It has been observed the anomalous dispersion at wavelength lambda < 800 nm, whereas the normal dispersion was found at wavelength lambda > 800. The non-linear refractive index of the deposited films was investigated. The linear optical susceptibility of pentacene thin film was calculated, and we observed the non-linear optical susceptibility of pentacene thin film at about 6 x 10(-13) esu. The advantage of this work is to use of spectroscopic method to calculate the liner and non-liner optical response of pentacene thin films rather than expensive Z-scan. The calculated optical behavior of the pentacene thin films could be used in the organic thin films base advanced optoelectronic devices such as telecommunications devices.

• 出版日期2016-7