Synthesis and Optical Characterization of New NLO-Active Polyurethanes and a Silver Colloidal Suspension in a Select Polyurethane

ABSTRACTNLO-active polyurethanes were developed and optically characterized. We synthesized polyurethanes possessing large hyperpolarlzabilities, which are covalently attached or crosslinked to the polymer backbone. At ambient temperature the d33 values for poled polyurethanes were measured shortly after poling and 6 months later. The second-order nonllnearlty of the poled, crosslinked polyurethane is extremely stable decreasing slightly over 6 months. Also, using a polyurethane bearing a tricyanovinyl moiety as the host, we developed a nonlinear optical silver nanoparticle composite system. A third-order susceptibility was measured for the composite and was determined to be larger than that from the sum of its components. A chemical enhancement mechanism is speculated to be contributing to the large optical nonlinearities.

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Characterization of the Complex Third-order Susceptibility of Myoglobin using Diffractive Optics

Springer Series in Chemical Physics - Ultrafast Phenomena XI ◽

10.1007/978-3-642-72289-9_40 ◽

1998 ◽

pp. 130-132

Author(s):

Gregory D. Goodno ◽

Vladimir Astinov ◽

R. J. Dwayne Miller

Keyword(s):

Diffractive Optics ◽

Third Order ◽

Order Susceptibility

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Optical nonlinearity of zeolitic imidazolate framework-67 in the near-infrared region

Materials Chemistry Frontiers ◽

10.1039/d0qm00226g ◽

2020 ◽

Vol 4 (7) ◽

pp. 2081-2088 ◽

Cited By ~ 4

Author(s):

Han Pan ◽

Hongwei Chu ◽

Xiao Wang ◽

Ying Li ◽

Shengzhi Zhao ◽

...

Keyword(s):

Near Infrared ◽

Optical Nonlinearity ◽

Infrared Region ◽

Optical Devices ◽

Optical Nonlinearities ◽

Third Order ◽

Zeolitic Imidazolate Framework ◽

Nonlinear Optical Devices ◽

Near Infrared Region ◽

Order Susceptibility

Optical nonlinearities of zeolitic imidazolate framework-67 (ZIF-67) were determined in the near-infrared region. The high TPA cross section and large third-order susceptibility demonstrate the potential of ZIF-67 for nonlinear optical devices.

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Structural and optical characterization of novel nitro substituted D-π-A-π-A type chalcone single crystal showing second-order and third-order nonlinear optical properties

Physica B Condensed Matter ◽

10.1016/j.physb.2019.411830 ◽

2020 ◽

Vol 580 ◽

pp. 411830 ◽

Cited By ~ 3

Author(s):

Vinay Parol ◽

V. Upadhyaya ◽

Ganesh Shridhar Hegde ◽

N.K. Lokanath ◽

A.N. Prabhu

Keyword(s):

Optical Properties ◽

Single Crystal ◽

Nonlinear Optical ◽

Optical Characterization ◽

Second Order ◽

Nonlinear Optical Properties ◽

Third Order

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Quadratic Electro-Optical Characterization of Molecular Nonlinear optical Materials

MRS Proceedings ◽

10.1557/proc-109-251 ◽

1987 ◽

Vol 109 ◽

Cited By ~ 2

Author(s):

John C. Luong ◽

N. F. Borrelli ◽

A. R. Olszeuski

Keyword(s):

Optical Materials ◽

Nonlinear Optical ◽

Second Harmonic ◽

Low Frequency ◽

Second Order ◽

Third Order ◽

Kerr Coefficient ◽

Molecular Compounds ◽

Order Susceptibility

ABSTRACTA convenient method of measuring the nonlinear optical properties of molecular compounds is described. The method involves measuring the quadratic electro-optical coefficient of a polymer composite containing a variable concentration of the candidate NLO material. The X(3) (ω) value obtained by this low-frequency Kerr measurement, after local-field corrections, can be compared to the nonresonant third-order susceptibility measured by degenerate-four-wave-mixing technique on selective samples. We find that the choice of the polymer matrix dictates the contribution of second-order susceptibility to the Kerr coefficient. Therefore, our method can also be extended to the measurement of second-order susceptibility, analogous to the technique of field-induced second-harmonic-generation.

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