Effect of Corona Poling and Thermo Cycling Sequence on NLO Properties of The Guest-Host System

Vembris, Aivars; Rutkis, Mārtiņš; Laizane, Elina

doi:10.1080/15421400801922684

Cited by 16 publications

(10 citation statements)

References 12 publications

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“…The two-electrode corona poling setup described above has been successfully used for practical poling of polymer samples and acquiring NLO active thin films [5][6][7][8][9][10]. At the same time, uncertainty in control of the sample surface charge build-up is typical for a setup of the kind, and, therefore, the poling field strength remains unknown.…”

Section: Resultsmentioning

confidence: 99%

“…The doped polymer film samples consisting of polymethylmethacrylate (PMMA) as matrix and dimethylaminobenzylidene 1,3-indandione (DMABI) as polar nonlinear active molecules were spin-coated onto ITO glass. The 3wt% load of DMABI molecules in PMMA was chosen to avoid polar molecule aggregation in the system (for details of the sample preparation procedure see, e.g., [7]). The corona poling of all samples was performed in three steps.…”

Section: Resultsmentioning

confidence: 99%

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Chromophore Poling in Thin Films of Organic Glasses. 2. Two-Electrode Corona Discharge Setup

Vilitis¹,

Muzikante²,

Rutkis³

et al. 2012

Latvian Journal of Physics and Technical Sciences

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Chromophore Poling in Thin Films of Organic Glasses. 2. Two-Electrode Corona Discharge Setup In Part 1 of the article we provided description of the corona discharge physics and overview of the methods used for corona poling in thin organic films. Subsequent sections describe comparatively simple technical methods for poling the organic nonlinear optical polymers using a two-electrode (point-to-plate or wire-to-plate) technique. The polarization build-up was studied by the DC positive corona method for poling the nonlinear optical (NLO) polymers. The experimental setup provides the corona discharge current from 0.5 μA up to 3 μA by applying 3 kV - 12 kV voltage to the corona electrode and makes possible selection among the types of corona electrodes (needle, multi-needle, wire, etc.). The results of experimental testing of the poling setup show that at fixed optimal operational parameters of poling - the sample orientation temperature and the discharge current - the corona charging of polymeric materials can successfully be performed applying the two-electrode technique. To study the dynamics of both poling and charge transport processes the three-electrode charging system - a corona triode - should be applied.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Chromophore Poling in Thin Films of Organic Glasses. 2. Two-Electrode Corona Discharge Setup

Vilitis¹,

Muzikante²,

Rutkis³

et al. 2012

Latvian Journal of Physics and Technical Sciences

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“…DMABI-Ph6 was selected mainly due to two reasons. Firstly, DMABI-Ph6 is amorphous and therefore would not crystallize during poling, unlike most of other DMABI derivatives [32]. Such effect is gained through attaching triphenylpentyl groups to the DMABI molecule.…”

Section: Eo Polymermentioning

confidence: 99%

All-organic electro-optic waveguide modulator comprising SU-8 and nonlinear optical polymer

et al. 2017

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In this paper we describe the principles of operation as well as the fabrication and testing steps of an all-organic waveguide modulator. The modulator comprises an SU-8 core and an electro-optic host-guest polymer cladding. The polymer properties are tuned in order to achieve single mode operation. We used direct-write laser lithography in two steps for the preparation of the devices. The electro-optic coefficient of the polymer is estimated from observing the modulation of the device operated in push-pull mode.

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“…Recently nonlinear optical (NLO) polymers are studied extensively because of their potential applications in the field of electro-optic devices [1][2][3][4]. In the developments of NLO polymers for electro-optic device applications, stabilization of electrically induced dipole alignment is one of important considerations [5].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Electro-Optic Properties of Novel Polyester Containing Dioxybenzylidenecyanoacetate as a NLO-Chromophore

Lee

Won

Lee

2009

Molecular Crystals and Liquid Crystals

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A novel polyester (4) containing dioxybenzylidenecyanoacetate group as a NLO-chromophore was prepared and characterized. Polyester 4 was soluble in common organic solvents such as acetone and DMSO. Polymer 4 showed thermal stability up to 280 C in TGA thermogram with T g value measured from DSC thermogram near 108 C. The SHG coefficient (d 33 ) of poled polymer film at the 1064 nm fundamental wavelength was around 3.54 Â 10 À9 esu. The dipole alignment exhibited a thermal stability up to near T g and no significant SHG decay was observed below 95 C due to the partial main-chain character of polymer structure, which was acceptable for NLO device applications.

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Effect of Corona Poling and Thermo Cycling Sequence on NLO Properties of The Guest-Host System

Cited by 16 publications

References 12 publications

Chromophore Poling in Thin Films of Organic Glasses. 2. Two-Electrode Corona Discharge Setup

Chromophore Poling in Thin Films of Organic Glasses. 2. Two-Electrode Corona Discharge Setup

All-organic electro-optic waveguide modulator comprising SU-8 and nonlinear optical polymer

Synthesis and Electro-Optic Properties of Novel Polyester Containing Dioxybenzylidenecyanoacetate as a NLO-Chromophore

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