Investigation of tetrabenzporphyrin by the Z-scan technique

Wood, Gary L.; Miller, Mary J.; Mott, Andrew G.

doi:10.1364/ol.20.000973

Cited by 119 publications

(57 citation statements)

References 7 publications

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“…For example, Wood et al reported a decrease in electrical polarizability upon substitution of phenyl residues with electron withdrawing groups which is different from our findings. They also observed an enhancement when electrondonating groups replaced phenyl [23].…”

Section: Monomersmentioning

confidence: 92%

Correlation studies on structurally diverse porphyrin monomers, dimers and trimers and their nonlinear optical responses

Zawadzka

Wang

Blau

et al. 2009

Chemical Physics Letters

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GRAPHICAL ABSTRACT Pictogram SynopsisThe nonlinear optical absorption of porphyrins can be modulated via chemical modifications of the ring system and the regiochemical arrangement of the substituents. ACCEPTED MANUSCRIPT ABSTRACTAn investigation of the nonlinear absorption of a wide range of structurally diverse porphyrin monomers, bisporphyrins and trisporphyrins, using open Z-scan technique with 6 ns pulsed laser operating at 532 nm was carried out. Using the theory of reverse saturable absorption, the intensity dependent nonlinear absorption coefficient eff was deduced from the experiments. Monomers which Soret band maximum was situated closer to the experimental wavelength had higher eff . The eff of dimers and trimers were in the same range as for monomers. The highest eff = 5.3 10 -8 cmW -1 was found for a zinc complex of 5,15-A 2 B 2 type porphyrins with 3-methoxyphenyl and trimethylsilyl-ethynyl groups in the meso positions.

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Section: Monomersmentioning

confidence: 92%

Correlation studies on structurally diverse porphyrin monomers, dimers and trimers and their nonlinear optical responses

Zawadzka

Wang

Blau

et al. 2009

Chemical Physics Letters

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“…This remarkable enhancement in the third-order nonlinear optical response may be related to the exciton confinement and optical Stark effects. 5 It is worth noting that certain representative third-order nonlinear optical materials, such as CuO chain compounds, 29 Ag 2 S / CdS nanocomposites, 30 metallophthalocyanines, 31 porphrins, 32 organic dyes, 33 organic polymers, 34 organic coated quantum dots, 35 metal clusters, 36 etc., yielded values of the order of 10 −10 to 10 −14 esu for ͑3͒ at a wavelength of 532 nm. These values are lower by one order of magnitude in comparison to the value of ͑3͒ obtained in the present investigation.…”

Section: -4mentioning

confidence: 99%

Size-dependent enhancement of nonlinear optical properties in nanocolloids of ZnO

Irimpan

Nampoori

Radhakrishnan

et al. 2008

Journal of Applied Physics

119

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Solid-immersion-lens-enhanced nonlinear frequency-variation mapping of a silicon integrated-circuit Appl. Phys. Lett. 99, 193103 (2011) A microfiber cavity with minimal-volume confinement Appl. Phys. Lett. 99, 051105 (2011) Lead silicate glass microsphere resonators with absorption-limited Q Appl. Phys. Lett. 98, 181105 (2011) Full band structure calculation of two-photon indirect absorption in bulk silicon Appl. Phys. Lett. 98, 131101 (2011) Geometry and quadratic nonlinearity of charge transfer complexes in solution: A theoretical study J. Chem. Phys. 134, 044534 (2011) Additional information on J. Appl. Phys. We have investigated the third-order nonlinearity in ZnO nanocolloids with particle sizes in the range 6-18 nm by the z-scan technique. The third-order optical susceptibility ͑3͒ increases with increasing particle size ͑R͒ within the range of our investigations. In the weak confinement regime, an R 2 dependence of ͑3͒ is obtained for ZnO nanocolloids. The optical limiting response is also studied against particle size.

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“…To understand the mechanism behind the observed nonlinear absorption, the excited state absorption cross-section (σex) of the sample was measured from the open-aperture Z-scan data [8]. For this OA data is fitted to the transmittance equation,…”

Section: Resultsmentioning

confidence: 99%

Optoelectronic and photoacoustic studies of an organic dye synthesized through green route

Vijayakumar

Sreelatha

Hatamimoslehabadi

et al. 2017

J. Phys.: Conf. Ser.

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Abstract. An azo dye was prepared through an environmentally benign and economically feasible synthesis route with cardanol as a starting material. Cardanol is a cost-effective and renewable natural source obtained from Cashew Nut Shell Liquid, a by-product of the cashew industry. The dye was spectrally characterized by IR, UV-Vis, NMR and fluorescence studies. UV-Vis absorption showed a bathochromic shift between solvents of lower and higher polarities. Nonlinear optical and photoacoustic properties were studied using a frequency doubled Nd:YAG laser producing 532 nm laser pulses of 3 ns pulse width. Results show that the nonlinear absorption coefficient decreases with the increase of on-axis intensity, suggesting excited state absorption as the principal mechanism. The observed nonlinearity has applications in optoelectronics.

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Investigation of tetrabenzporphyrin by the Z-scan technique

Cited by 119 publications

References 7 publications

Correlation studies on structurally diverse porphyrin monomers, dimers and trimers and their nonlinear optical responses

Correlation studies on structurally diverse porphyrin monomers, dimers and trimers and their nonlinear optical responses

Size-dependent enhancement of nonlinear optical properties in nanocolloids of ZnO

Optoelectronic and photoacoustic studies of an organic dye synthesized through green route

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