Optical Nonlinearities In Organic Materials: Fundamentals And Device Applications

ABSTRACTWe have measured extremely large second hyperpolarizabilities〈γxxxx〉 in solutions of two recently prepared organic polymer semiconductor superlattices. These block copolymers are of alternating aromatic and quinoidal moieties and structurally differ by a side group substituent. The values observed are 1.6 × 10−29 esu for the parent copolymer (PBTBQ) and 3.7 × 10−30 esu for its acetoxy derivative (PBTABQ). The corresponding values of χ(3) are estimated to be 2.7 × 10−7 esu and 4.5 × 108 esu. The measurements, made by picosecond degenerate four wave mixing at 532 nm, showed that the dynamics of the larger χ(3) valued copolymer were faster than the 30 ps resolution of the instrument while the derivative exhibited a slower response. The large magnitude and rapid response of the cubic optical nonlinearities in these novel materials suggest theiT potential for further development and photonic device applications.

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New organic materials with large optical nonlinearities

IEEE Journal of Quantum Electronics ◽

10.1109/jqe.1981.1071322 ◽

1981 ◽

Vol 17 (9) ◽

pp. 1593-1595 ◽

Cited By ~ 23

Author(s):

K. Jain ◽

G. Hewig ◽

Y. Cheng ◽

J. Crowley

Keyword(s):

Organic Materials ◽

Optical Nonlinearities

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Nonlinear optical devices: Relative Status of Polymeric Materials

MRS Proceedings ◽

10.1557/proc-228-3 ◽

1991 ◽

Vol 228 ◽

Cited By ~ 1

Author(s):

George I. Stegeman

Keyword(s):

Nonlinear Optical ◽

Organic Materials ◽

State Of The Art ◽

Polymeric Materials ◽

Nonlinear Optical Devices ◽

Current State ◽

Device Applications ◽

Relative Status ◽

Nonlinear Optical Phenomena ◽

Made In

ABSTRACTNonlinear optical phenomena have been investigated over the last three decades in many different materials and a great deal of progress has been made in both the basic science and device applications.(1] Although interest in nonlinear organic materials dates back to the early days of nonlinear optics, it is only in the last five years that progress has been sustained and rapid. The purpose of this paper is to examine progress in developing new nonlinear organic materials and in their application to devices for comparison with current state-of-the-art devices using other material systems.

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A Short Review on the Magnetic Effects Occurring at Organic Ferromagnetic Interfaces Formed between Benzene-Like Molecules and Graphene with Ferromagnetic Surfaces

Zeitschrift für Naturforschung A ◽

10.5560/zna.2014-0026 ◽

2014 ◽

Vol 69 (7) ◽

pp. 360-370 ◽

Cited By ~ 2

Author(s):

Nicolae Atodiresei ◽

Vasile Caciuc ◽

Predrag Lazić

Keyword(s):

Density Functional ◽

Organic Materials ◽

Short Review ◽

Magnetic Exchange ◽

Magnetization Direction ◽

Functional Theory ◽

Magnetic Exchange Coupling ◽

Magnetic Surfaces ◽

Strong Hybridization ◽

Device Applications

In this article, we briefly summarize our results gained from recent density functional theory simulations aimed to investigate the interaction between organic materials containing π-electrons (i. e., several benzene-like molecules and graphene) with ferromagnetic surfaces. We show how the strong hybridization between the pz-electrons that initially form the π molecular orbitals with the magnetic d-states of the metal influences the spin polarization, the magnetic exchange coupling, and the magnetization direction at hybrid organic-ferromagnetic interface. From a practical perspective, these properties play a very important role for device applications based on organic materials and magnetic surfaces.

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Surface and Interface Engineering for Organic Device Applications

Materials ◽

10.3390/ma14164647 ◽

2021 ◽

Vol 14 (16) ◽

pp. 4647

Author(s):

Ju-Hyung Kim

Keyword(s):

Organic Materials ◽

Broad Sense ◽

Interface Engineering ◽

Surface And Interface ◽

Low Weight ◽

Potential Applications ◽

Device Applications ◽

Carbon Based

In last few decades, organic materials (or carbon-based materials in a broad sense) including polymers have received much attention for their potential applications in electronics, because they have outstanding advantages such as high processibility, mechanical flexibility, and low weight [...]

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