“…Optical limiting. In the past two decades, much importance has been given to materials with strong optical limiting characteristics to guard optical instruments, particularly the human eye, from powerful laser beams (Suresh & Arivuoli, 2012;Patil et al, 2015;Singh et al, 2014;Å strand et al, 2000). Optical limiting refers to a high transmittance for low level inputs and decay of transmittance at intermediate levels of input as the intensity of the incident light rises (Krishnakumar & Nagalakshmi, 2008).…”
Section: Thermal Analysismentioning
confidence: 99%
“…Second-and third-order nonlinear optical (NLO) materials have a wide range of practical applications (Suresh & Arivuoli, 2012), such as optical limiting (Patil et al, 2015;Singh et al, 2014), optical data storage (Å strand et al, 2000), terahertz wave generation (Krishnakumar & Nagalakshmi, 2008) and two-photon excited fluorescence microscopy (Ftouni et al, 2013). In such applications, organic NLO materials are more promising than inorganic materials (Boyd, 2003;Bosshard et al, 2001).…”
Crystal growth and characterization of second-and third-order nonlinear optical chalcone derivative: (2E)-3-(5-bromo-2-thienyl)-1-(4-nitrophenyl)prop-2-en-1-one Experimental and computational studies of linear and nonlinear optical (NLO) properties of (2E)-3-(5-bromo-2-thienyl)-1-(4-nitrophenyl)prop-2-en-1-one (5B2SNC) single crystals are reported. Good-quality and large-sized single crystals of 5B2SNC were successfully grown and characterized by powder X-ray diffraction and high-resolution X-ray diffractometry techniques. 5B2SNC was found to crystallize in the monoclinic noncentrosymmetric space group Cc and possesses moderately good crystalline perfection. The linear optical properties were investigated using the absorption spectrum, which reveals a direct optical band gap of 3.1 eV. The thermal stability was studied with thermogravimetric analysis/differential thermal analysis. The powder second harmonic generation efficiency was evaluated by the Kurtz and Perry method, and 5B2SNC was found to be 26 times more efficient than urea standard. Third-order NLO properties were studied by the z-scan technique with a femtosecond laser. The second hyperpolarizability was obtained to be $1.45 Â 10 À31 e.s.u. The molecule reveals a strong reverse saturation absorption and negative nonlinear refraction. The molecule exhibited good optical limiting properties, and its limiting threshold was measured to be $3.2 mJ cm À2 . In addition, static electric dipole moments, linear polarizabilities, and first-and second-order hyperpolarizabilities were calculated by density functional theory (DFT). Highest occupied molecular orbital/lowest unoccupied molecular orbital band gaps were also evaluated by DFT calculations. The experimental and theoretical results showed that 5B2SNC exhibits excellent second-and third-order nonlinear optical properties.
“…Optical limiting. In the past two decades, much importance has been given to materials with strong optical limiting characteristics to guard optical instruments, particularly the human eye, from powerful laser beams (Suresh & Arivuoli, 2012;Patil et al, 2015;Singh et al, 2014;Å strand et al, 2000). Optical limiting refers to a high transmittance for low level inputs and decay of transmittance at intermediate levels of input as the intensity of the incident light rises (Krishnakumar & Nagalakshmi, 2008).…”
Section: Thermal Analysismentioning
confidence: 99%
“…Second-and third-order nonlinear optical (NLO) materials have a wide range of practical applications (Suresh & Arivuoli, 2012), such as optical limiting (Patil et al, 2015;Singh et al, 2014), optical data storage (Å strand et al, 2000), terahertz wave generation (Krishnakumar & Nagalakshmi, 2008) and two-photon excited fluorescence microscopy (Ftouni et al, 2013). In such applications, organic NLO materials are more promising than inorganic materials (Boyd, 2003;Bosshard et al, 2001).…”
Crystal growth and characterization of second-and third-order nonlinear optical chalcone derivative: (2E)-3-(5-bromo-2-thienyl)-1-(4-nitrophenyl)prop-2-en-1-one Experimental and computational studies of linear and nonlinear optical (NLO) properties of (2E)-3-(5-bromo-2-thienyl)-1-(4-nitrophenyl)prop-2-en-1-one (5B2SNC) single crystals are reported. Good-quality and large-sized single crystals of 5B2SNC were successfully grown and characterized by powder X-ray diffraction and high-resolution X-ray diffractometry techniques. 5B2SNC was found to crystallize in the monoclinic noncentrosymmetric space group Cc and possesses moderately good crystalline perfection. The linear optical properties were investigated using the absorption spectrum, which reveals a direct optical band gap of 3.1 eV. The thermal stability was studied with thermogravimetric analysis/differential thermal analysis. The powder second harmonic generation efficiency was evaluated by the Kurtz and Perry method, and 5B2SNC was found to be 26 times more efficient than urea standard. Third-order NLO properties were studied by the z-scan technique with a femtosecond laser. The second hyperpolarizability was obtained to be $1.45 Â 10 À31 e.s.u. The molecule reveals a strong reverse saturation absorption and negative nonlinear refraction. The molecule exhibited good optical limiting properties, and its limiting threshold was measured to be $3.2 mJ cm À2 . In addition, static electric dipole moments, linear polarizabilities, and first-and second-order hyperpolarizabilities were calculated by density functional theory (DFT). Highest occupied molecular orbital/lowest unoccupied molecular orbital band gaps were also evaluated by DFT calculations. The experimental and theoretical results showed that 5B2SNC exhibits excellent second-and third-order nonlinear optical properties.
“…Chalcones are a fundamental unit in various biologically potent compounds and have numerous applications such as anticancer [ 1 , 2 ], anti-inflammatory [ 3 ], antioxidants [ 4 ], antimalarial [ 5 ], antiviral [ 6 ], anti-HIV [ 7 ], antiprotozoal [ 8 ], antimicrobial [ 9 ], antihypertensive [ 10 ], antifungal [ 11 ], antituberculosis [ 12 ], antidiabetic [ 13 ], antiulcer [ 14 ], antileishmanial [ 15 ], etc. In addition to their significance as potential pharmaceutical agents, chalcones are well known for their photochemical [ 16 ], optical [ 17 ], and Non-Linear Optical properties (NLO) [ 18 ] properties. Chalcones have been used as fluorophores in Organic Light-Emitting Diodes(OLED), chemosensors, and fluorescent probes [ 19 , 20 ].…”
Disclosure of new molecular probes as chromogenic and fluorogenic cation sensors is scientifically exigent work. Recently chalcone derivatives gained more attention because of their structural variability. A suitable donor and acceptor groups separated by delocalized π-orbitals display excellent chromogenic and fluorogenic properties because of intramolecular charge transfer (ICT). These designed molecular frameworks provide the coordination sites to the incoming metal ions results in small changes in the optical properties. In a typical sensing behavior, coordination leads to a large conjugation plane with the probe resulted in hypo/hyperchromic shifts or red/blue shifts. In this review, we tried to converge the reported chalcone-derived sensors and explored the design, synthesis, metal ion sensing mechanism, and practical application of the probes. We expect that this review gives a basic outline for researchers to explore the field of chalcone-based sensors further.
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