Nonlinear optical properties of organic and polymeric materials
29 Sep 1983-
About: The article was published on 1983-09-29 and is currently open access. It has received 762 citations till now.
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TL;DR: In this paper, two types of all-optical bistability were observed in polydiacetylene Langmuir-Blodgett (PDALB) films layered on rf-sputtered Corning 7059 slab-type waveguides with fused-quartz substrates.
Abstract: Two types of all-optical bistability were observed in polydiacetylene Langmuir–Blodgett (PDALB) films layered on rf-sputtered Corning 7059 slab-type waveguides with fused-quartz substrates One bistability originating from optical nonlinear coupling between a prism and a PDALB-Corning hybrid waveguide produced input and output curves with hysteresis characteristics The other type of bistability was observed in the hybrid waveguide with a nonlinear distributed-Bragg reflector of the PDALB top layer We cannot yet determine whether the origins of both bistabilities are electronic or thermal
74 citations
TL;DR: In this article, the effects of THG interference between a film sample and substrate, and of the THG in air, were evaluated for several types of monomeric and polymeric materials.
Abstract: Third-order optical nonlinearities have been evaluated for organic materials in powder, solution, and film forms, by third-harmonic generation (THG) measurement. Considerations of the effects of THG interference between film sample and substrate, and of the effect of THG in air, are made for an accurate x(3) evaluation. Several types of monomeric and polymeric materials are examined by this method.
74 citations
IBM1
TL;DR: The linear and nonlinear optical properties have been determined for a new organic nonlinear material 4,N,Ndimethylamino)•3,acetamidonitrobenzene.
Abstract: The linear and nonlinear optical properties have been determined for a new organic nonlinear material 4‐(N,N‐dimethylamino)‐3‐acetamidonitrobenzene. Room‐temperature angularly tuned type I phase matching for doubling of 1.064 μm radiation was achieved with a deff =27 pm/V. Favorable crystal growth habits were observed.
73 citations
TL;DR: A detailed analysis of phase conjugation at 1.06 μm, in the transparency region of soluble polydiacetylenes is presented in this article, where different grating contributions are isolated.
Abstract: A detailed analysis of picosecond time‐resolved phase conjugation at 1.06 μm, in the transparency region of soluble polydiacetylenes is presented. Different grating contributions are isolated. It is shown that in red and blue gel forms, phase conjugation at high pump energies is driven by two‐photon absorption degenerate six‐wave mixing, superimposed on degenerate four‐wave mixing. The third‐order nonlinear susceptibility of these polymers is reported: It reaches 10−11 esu (30 times CS2 value) for the pure blue amorphous polymer. Two‐photon excited species increase phase conjugation at 1‐GW cm−2 pump power by one order of magnitude.
71 citations
TL;DR: The potential advantage of using organic materials is that the molecules can be optimized for their optical response, e.g. second and/or third-order optical nonlinearities for efficient modulation, harmonic generation, all-optical signal processing etc as discussed by the authors.
70 citations