Third-order nonlinear optical investigations of meso-tetrakis(2,3,5,6-tetrafluoro-N,N-dimethyl-4-anilinyl)porphyrin and its metal complexes.

N K Siji Narendran, Rahul Soman, Chellaiah Arunkumar, K Chandrasekharan

Journal: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2015;136 Pt B():838-44

PMID: 25459606

Full Text on Elsevier Science View on PubMed

Abstract

We report here the experimental investigation on third-order nonlinear optical parameters of 5,10,15,20-tetrakis(2,3,5,6-tetrafluoro-N,N-dimethyl-4-anilinyl)porphyrin and its various metal complexes, using Z-scan technique at 532 nm. The third-order nonlinear optical susceptibilities (χ(3)) were of the order 10(-12) esu and are compared through degenerate four wave mixing (DFWM). The operating mechanism is reverse saturable absorption (RSA) as the effective excited-state absorption cross-section was found higher than ground state absorption cross-section as well as the magnitude of nonlinear absorption coefficient was found decreasing with on-axis input intensity. The compounds found to exhibit good optical limiting at 532 nm, 7 ns excitation steering applications in laser safety.

Address: Laser and Nonlinear Optics Laboratory, Department of Physics, National Institute of Technology Calicut, Kozhikode 673601, Kerala, India.; Bioinorganic Materials Research Laboratory, Department of Chemistry, National Institute of Technology Calicut, Kozhikode 673601, Kerala, India.; Laser and Nonlinear Optics Laboratory, Department of Physics, National Institute of Technology Calicut, Kozhikode 673601, Kerala, India. Electronic address: [email protected].

DOI: 10.1016/j.saa.2014.09.102

Link outs

Free resources

Miscellaneous:

https://assays.cancer.gov/CPTAC-76

Subscription / membership required

Full Text Sources:

https://linkinghub.elsevier.com/retrieve/pii/S1386...

MeSH Terms: Halogenation, Metalloporphyrins, Methylation, Models, Molecular, Nonlinear Dynamics, Optical Phenomena, Static Electricity