Nonlinear Optical Properties of Polymers: Volume 109 (MRS Proceedings) »

Nonlinear Optical Properties of PolymersVolume 109 MRS.

Jul 20, 1990 · Volume 170, number 5,6 CHEMICAL PHYSICS LETTERS 20 July 1990 and Shiro Matsumoto NT! Applied Electronics Laboratories, 3-9-Il, Midoricho, Mu,rashino, Tokyo 180, Japan Received 19 March 1990; in final form 18 April 1990 Third-order nonlinear optical properties of a disazo dye attached polymer 3R were evaluated and compared with that of a monoazo Disperse Red I dye attached polymer. Sep 23, 2012 · Nonlinear optical properties of novel tunable, one dimensional molecular superlattice polymers heteroarylene methines containing alternating aromatic and quinoid segments. B. P. Singh 1 Applied Physics B volume 109,. W. C. Chen, in Advanced Organic Solid State Materials, Materials Research Society Symposium Proceedings, vol. 173 MRS. Since 1982 the USAF has had a major basic research program in nonlinear optical organics with a major focus on polymers and some work on organometallics. Emphasis has been on. Large second hyperpolarizabilities, 〈γ xxxx 〉, have been measured in solutions of two recently prepared organic polymer superlattices. These compounds have period aromatic and quinoidal structures and differ from each other by a side group substituent. The values observed are 1.6×10 −29 esu for the parent copolymer and 3.7×10 −30 esu for its acetoxy derivative.

Degenerate four‐wave mixing with femtosecond time resolution is used to measure the magnitude and transient response of the third‐order nonlinear optical susceptibility χ3 ω;ω,−ω,ω at 620 nm in nonoriented conducting polymers including polydiacetylene, polyacetylene, polyaniline, polydiethynylsilane, polythiophene, and polythiophene derivatives. Resonant and. The field of active electronic and photonic devices made with organic and polymeric materials is rapidly growing, and new advances are being made both in attaining a deeper understanding of device phenomena and in developing novel materials. The presentations in this book emphasize the broad scientific and technological interest in organic materials for both electronic and photonic applications. Heeger, J. Orenstein, and D. R. Ulrich, eds., Nonlinear Optical Properties of Polymers, MRS Symposium Proceedings, No. 109 Materials Research Society, Pittsburgh, PA, 1988. A Novel Class of Nonlinear Optical Side-Chain Polymer: Polyquinolines with Large Second-Order Nonlinearity and Thermal Stability. Chemistry of Materials 1996, 8 3, 607-609.

Dec 06, 2003 · A series of diacetylene-containing polymers were prepared by oxidative coupling polymerization of 9,9-bis4-propargyloxyphenylfluorene and dipropargyl 4,4‘-hexafluoroisopropylidenediphthalimide. The polymers had molecular weights of 42 000−235 300 and polydispersity indices of 1.1−1.8 as determined by gel permeation chromatography using polystyrene standards. All the polymers. Syntheses and optical properties of polyo-phenylene vinylenes. Synthetic Metals 1999, 107 1, 47-51. DOI: 10.1016/S0379-67799900143-5. Seong Yong Pyun, Hyunsik Moon, Jin Kyun Lee, Nakjoong Kim, Soo Young Park. Synthesis of nonlinear optical polymers.

Polymers ISSN 2073-4360; CODEN: POLYCK is a peer-reviewed open access journal of polymer science published monthly online by MDPI. Belgian Polymer Group BPG and The Swiss Chemical Society SCS are affiliated with Polymers and their members receive a discount on the article processing charges. Open Access free for readers, with article processing charges APC paid by. Diagrammatic valence‐bond DVB theory is extended to dynamic nonlinear susceptibilities of interacting π electrons in Pariser–Parr–Pople PPP or other quantum cell models whose correlated ground state ‖G〉 is known. Corrections φ1ω and φ2ω2,ω1 to ‖G〉 due to oscillating electric fields are found directly as linear combinations of VB diagrams. Any nonlinear optical.

Third Order Optical Nonlinearity of Soluble Polythiophenes.

Electrically switchable volume holograms lead to the possiblity of real-time electro-optical control of diffractive optic components. We report here on the development of a novel photopolymer-liquid crystal composite material system for writing in a fast single step, high diffraction efficiency volume holograms, capable of switching in applied electric fields of low voltage. Jun 14, 1991 · INTRODUCTION Materials with strong third-order nonlinear optical properties are expected to be very important in a variety of photoelectronic applications in the near future [1-3]. We classify the third-order organic nonlinear optical systems based on the mechanism of the occurrence of third- order nonlinear effects. Mar 01, 1995 · After the POLYMER Volume 36 Number 5 1995 955 Void formation in rigid-rod polymer films: J. W. Lee et al. solution was determined to be homogeneous with a polarized optical microscope, it was deaerated and filtered through a glass flit of 20-50/~m pore size using vacuum. Research News: Organic nonlinear optical NLO materials offer and alternative approach to a blue laser to the inorganic materials described by Ouwerkerk this issue. The criteria for efficient organic NLO materials which are transparent at both 820 nm, the emmission frequency of GaAs/AlGaAs diode lasers, and 410 nm, the frequency of the frequency‐doubled blue light are discussed with.

  1. Photocross-linking between the NLO active molecules and a photoreactive polymer is achieved by UV irradiation subsequent to poling. The thin film exhibits a nonlinear coefficient d 33 of 16.5 pm/V at a doping level of 20% by weight of NLO active molecules and possesses quite stable second order nonlinear optical properties.
  2. Feb 21, 2011 · Third order optical nonlinearity, χ 3 −3ω; ω, ω, ω, of the polymers was determined by optical third harmonic generation THG. Enhancement of the χ 3 by three photon absorption was observed when a beam of 1.54 μm was used as a fundamental. Also, light propagation properties were investigated by using slab waveguides of the polymers.
  3. Polyp-phenylenevinylene PPV has been incorporated into sol−gel matrixes via its soluble precursor polymer, using tetramethoxysilane TMOS and methyltrimethoxysilane MTMS as the silane monomers. Linear absorption maximum λmax and nonlinear refractive index n2 of the PPV in the two composite systems were compared and studied. Compared to pristine PPV, a reduction was seen in.

1. Introduction. Nonlinear effects in electricity and magnetism have been recognized since Maxwell’s time. However, much progress has been made in the field of nonlinear optics since the discovery of the laser, 1 which made high-intensity optical fields easily feasible. The field started to grow with the first experimental work of Franken et al. 2 on optical second-harmonic generation SHG. Jan 01, 2017 · In recent times, investigations on surface enhancement effect have opened up a new methodology for modulating and improving optical properties [3].To enhance these optical electrical and electrochemical properties, various dopants, blends and copolymers have been used in the polymer matrix[4]. Molecular Modeling of Free Volume Distributions of Amorphous Membrane Polymers. MRS Proceedings 2002, 752 DOI: 10.1557/PROC-752-AA7.4. Sung-Ho Jin, Sung-Hyun Kim, Yeong-Soon Gal. Synthesis and characterization of novel crosslinkable polymers with a nonlinear optical chromophore as a pendant group.

Orientation of the constituent nonlinear optical chromophores, usually accomplished by electricfield poling, provides an EO coefficient suitable for modulation of light beams propagating in the plane of the polymer film. Thus, EO polymers are ideally suited for applications in integrated optics.We studied the third‐order nonlinear optical properties of phthalocyanine and fullerene in solution and in thin film form through third‐harmonic generation measurement. X‐ray diffraction measurement and scanning electron microscopy observation were also conducted to investigate the relationship between nonlinear optical and structural properties of the thin film.Cambridge Core - MRS Online Proceedings Library OPL - Volume 214 - Book chapters will be unavailable on Saturday 24th August between 8am-12pm BST. This is for essential maintenance which will provide improved performance going forwards.

The open/closed aperture Z-scan technique were performed to evaluate third order nonlinear optical materials by measuring experimental parameters such as nonlinear absorption/refraction and calculate second-order hyperpolarizability with corresponding third-order nonlinear optical susceptibility of 4M1PMS and 4BPMS. The surface damage threshold. The optical and electronic properties of semiconductors is a subject which today presents a major area in solid state sciences. This book is the first attempt to gather together information which is otherwise scattered throughout the scientific literature into a single comprehensive work. A, “Optical limiting properties of carbon nanotube hybrids in polymer dispersions”, accepted by Applied Physics B 2011 Yambem, S. D.; Liao, K-S.; Curran, S. A, “Flexible Ag electrode for use in organic photovoltaics”, Solar Energy Materials & Solar Cells 95, 3060-3064 2011. Values up to γ= 7 × 106/Wkm for the nonlinear parameter are feasible if silicon-on-insulator based strip and slot waveguides are properly designed. This is more than three orders of magnitude larger than for state-of-the-art highly nonlinear fibers, and it enables ultrafast all-optical signal processing with nonresonant compact devices. At λ = 1.55μm we provide universal design curves.

James Spicer, a professor in the Department of Materials Science and Engineering and chair of Engineering for Professional’s Materials Science and Engineering Program EP at the Whiting School, is known for leading-edge innovations in laser-material interactions with significant implications for energy-related technologies, global security and defense, and healthcare imaging, among other. Polymers that make light work. D., Akagi, K. & Heeger, A.J. in MRS Symp. 109, 205–216 Materials Research Society, Pittsburgh. J. in Nonlinear Optical Properties of Organic Molecules and. Materials Research Society Symposium Proceedings, vol. 328, Publ by Materials Research Society, pp. 577-582, Proceedings of the MRS 1993 Fall Meeting, Boston, MA, USA, 11/29/93. Kippelen B, Sandalphon, Meerholz K, Volodin B, Lyon SR, Padias AB et al. Photorefractivity and photoisomerization in azo-dye-doped polymers.

Dr. Kaul’s research revolves around exploring the electrical, optical and mechanical properties of nanoscale materials for device applications. “Nonlinear Optical Chromophores in Photocrosslinked Matrices.” Ulman, A. ACS Symposium Series on FT-IR in Colloid and Interface Science 1990, 447, 144. “Fourier Transform Infrared FTIR Spectroscopy of Langmuir-Blodgett and Self-Assembled Films: An Overview.”. The review gives a brief survey of NLO polymeric materials based on azobenzene units and of high thermal and temporal stability. It starts with a brief introduction which comprises principles and the origin of nonlinear optics and the various kind of polymeric materials for nonlinear optics, including guest–host systems, side-chain polymers, main-chain polymers their advantages and. Linear optical properties of the calix[4]arene waveguiding film have been measured with the prism-coupling method. The molecules in the film are oriented by a corona-poling technique.

Sep 13, 2007 · “Handbook of organic materials for optical and optoelectronic devices: Properties and applications Woodhead Publishing Series in Electronic and Optical Materials;” edited by O. Ostroverkhova, Woodhead Publishing, 2013. Nonlinear Optical Properties of Organic Materials IV, K.D. Singer, ed. SPIE, Bellingham, WA, 1991. Book Chapters Yeheng Wu and Kenneth D. Singer, “Second Harmonic Generation as a Characterization Technique and Phenomological Probe, in Handbook of Organic Materials for Optical and Optoelectronic Devices: Properties and Applications, Oksana. The Optical Properties of Materials: Volume 579 MRS Proceedings. are also incorporated. Topics include: bulk materials - ab initio theory; surfaces and polymers; clusters and nanocrystals; confined quantum systems/ quantum dots; nonlinear optical effects; semiconductor lasers, heterostructures and alloys; light-emitting materials. Properties of polymer stabilized cholesteric liquid crystals in the oblique helicoidal state: 2018-11-17: 2017 MRS Fall meeting: Photoinduced effects in guest-host liquid crystals containing naphthopyran derivatives: 2018-05-11: AFRL briefing: Polymer stabilization of liquid crystals in the oblique helicoid state: 2018-06-18.

Two novel polyimines were synthesized from a benzodifuran based diamino monomer and two dialdehydes bearing bulky groups and a flexible spacer. The polymers display tuned luminescence performance according to the presence of half-salen groups. The effect of the intramolecular bond on the emission properties were examined. Two model compounds, replicating the same emissive Schiff.

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