Nonlinear Optical Properties of Tetrapyrazinoporphyrazinato Indium Chloride Complexes Due to Excited-State Absorption Processes

2005 ◽  
Vol 109 (26) ◽  
pp. 12691-12696 ◽  
Author(s):  
Danilo Dini ◽  
Michael Hanack ◽  
Moreno Meneghetti
Keyword(s):  
Optical Properties ◽  
Excited State ◽  
Nonlinear Optical ◽  
Excited State Absorption ◽  
Nonlinear Optical Properties ◽  
Chloride Complexes ◽  
Indium Chloride

scholarly journals Ultrafast broadband nonlinear optical properties and excited-state dynamics of two bis-chalcone derivatives

RSC Advances ◽  
2020 ◽  
Vol 10 (26) ◽  
pp. 15199-15205
Author(s):  
Lei Shen ◽  
Zhongguo Li ◽  
Xingzhi Wu ◽  
Wenfa Zhou ◽  
Junyi Yang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Excited State ◽  
Benzene Ring ◽  
Absorption Spectra ◽  
Nonlinear Optical ◽  
Excited State Absorption ◽  
Nonlinear Optical Properties ◽  
Excited State Dynamics ◽  
Chalcone Derivatives

The introduction of a benzene ring largely affects the excited-state absorption spectra and dynamics of these chromophores.

scholarly journals Fused ring effect on optical nonlinearity and structure property relationship of anthracenyl chalcone based push-pull chromophores

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0257808
Author(s):  
Dian Alwani Zainuri ◽  
Mundzir Abdullah ◽  
Muhamad Fikri Zaini ◽  
Hazri Bakhtiar ◽  
Suhana Arshad ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Electrostatic Potential ◽  
Nonlinear Refractive Index ◽  
Optical Switching ◽  
Nonlinear Optical ◽  
Continuous Wave ◽  
Excited State Absorption ◽  
Nonlinear Optical Properties ◽  
Closed Aperture

The Ultraviolet-visible (UV-Vis) spectra indicate that anthracenyl chalcones (ACs) have high maximum wavelengths and good transparency windows for optical applications and are suitable for optoelectronic applications owing to their HOMO–LUMO energy gaps (2.93 and 2.76 eV). Different donor substituents on the AC affect their dipole moments and nonlinear optical (NLO) responses. The positive, negative, and neutral electrostatic potential regions of the molecules were identified using molecular electrostatic potential (MEP). The stability of the molecule on account of hyperconjugative interactions and accompanying charge delocalization was analyzed using natural bond orbital (NBO) analysis. Open and closed aperture Z-scans were performed using a continuous-wave frequency-doubled diode-pumped solid-state (DPSS) laser to measure the nonlinear absorption and nonlinear refractive index coefficients, respectively. The valley-to-peak profile of AC indicated a negative nonlinear refractive index coefficient. The obtained single crystals possess reverse saturation absorption due to excited-state absorption. The structural and nonlinear optical properties of the molecules have been discussed, along with the role of anthracene substitution for enhancing the nonlinear optical properties. The calculated third-order susceptibility value was 1.10 x10-4 esu at an intensity of 4.1 kW/cm2, higher than the reported values for related chalcone derivatives. The NLO response for both ACs offers excellent potential in optical switching and limiting applications.

Ultrafast excited state dynamics and dispersion studies of nonlinear optical properties in dinaphthoporphycenes

2012 ◽  
Vol 100 (14) ◽  
pp. 141109 ◽  
Author(s):  
Debasis Swain ◽  
P. T. Anusha ◽  
T. Shuvan Prashant ◽  
Surya P. Tewari ◽  
Tridib Sarma ◽  
...  
Keyword(s):  
Optical Properties ◽  
Excited State ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Excited State Dynamics

Nonlinear Optical Properties of Materials Based on Graphene Oxide: A Review

2019 ◽  
Vol 4 (3) ◽  
pp. 151-159
Author(s):  
Mojtaba Ebrahimi ◽  
Abdolnasser Zakery
Keyword(s):  
Optical Properties ◽  
Graphene Oxide ◽  
Nonlinear Optical ◽  
Excited State Absorption ◽  
Nonlinear Process ◽  
Nonlinear Optical Properties ◽  
Short Pulses ◽  
Properties Of Materials ◽  
Optical Properties Of Materials ◽  
Saturation Absorption

Background: Nonlinear optical properties of Graphene and Graphene Oxide have been widely used in industry and academia. Graphene oxide disperses easily in water and has easier interaction with other materials because of the presence of oxygen groups. So, this feature of Graphene oxide enables us to manipulate its nonlinear optical properties by combining it with other nanoparticles. Objective: We introduced recent advances in the nonlinear optical properties of materials based on Graphene oxide. Methods: Nonlinear optical properties and optical limiting of Graphene oxide and/or its composites with various nanoparticles, considering the wavelength and the incident pulse width, are investigated in this review. Conclusion: At low intensities and in all pulse regimes, saturation absorption seems to be the dominant mechanism of nonlinear absorption in Graphene oxide, while at higher intensities, the main mechanism is the reverse saturation absorption. In the regime of very short pulses of picoseconds and femtoseconds, the dominant mechanisms of two-photon and multiphoton absorption lead to reverse saturation. In the nanosecond pulse regime, long laser pulses and short pulses with high pulse repetition rates, excited-state absorption and nonlinear scattering due to thermal effects are causing the nonlinear process.

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