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

Nitišs, Edgars; Tokmakovs, Andrejs; Pudžs, Kaspars; Busenbergs, Janis; Rutkis, Mārtiņš

doi:10.1364/oe.25.031036

Cited by 20 publications

(19 citation statements)

References 38 publications

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“…To distinguish whether the effect is due to solvent absorption in the cladding or core of the waveguide, we have measured the sensitivity of the sensor after heating the sample at 120 ℃ for 30 min. This temperature is above the glass transition temperature of the cladding which is at 80 ℃ [31], and below the glass transition temperature of the SU-8. In Fig.…”

Section: Volatile Solvent Vapor Sensingmentioning

confidence: 84%

“…A good candidate for the mentioned application would be the poly(methyl methacrylate) (PMMA) polymer which has previously been reported to be used in gas sensing applications [29,30]. PMMA refractive index is lower than that of SU-8, and it can be tuned by mixing it with a chromophore [31]. We use a 2-(4-(bis(5,5,5-triphenylpentyl)amino)benzylidene)-1H-indene-1,3(2H)-dione (DMABI-Ph6) [32] as the chromophore for refractive index tuning in PMMA.…”

Section: Sensor Preparationmentioning

confidence: 99%

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All-Organic Waveguide Sensor for Volatile Solvent Sensing

et al. 2019

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An all-organic Mach-Zehnder waveguide device for volatile solvent sensing is presented. Optical waveguide devices offer a great potential for various applications in sensing and communications due to multiple advantageous properties such as immunity to electromagnetic interference, high efficiency, and low cost and size. One of the most promising areas for applications of photonic systems would be real-time monitoring of various hazardous organic vapor concentrations harmful to human being. The optical waveguide volatile solvent sensor presented here comprises a novel organic material applied as a cladding on an SU-8 waveguide core and can be used for sensing of different vapors such as isopropanol, acetone, and water. It is shown that the reason for the chemical sensing in device is the absorption of vapor into the waveguide cladding which in turn changes the waveguide effective refractive index. The presented waveguide device has small footprint and high sensitivity of the mentioned solvent vapor, particularly that of water. The preparation steps of the device as well as the sensing characteristics are presented and discussed.

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Section: Volatile Solvent Vapor Sensingmentioning

confidence: 84%

Section: Sensor Preparationmentioning

confidence: 99%

All-Organic Waveguide Sensor for Volatile Solvent Sensing

et al. 2019

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“…From this it is evident that triphenylpentyl groups added to donor part of molecule has small contribution to overall NLO properties of molecule. At the same time it is important to emphasize that triphenylpentyl groups limits the probability of crystallization and can lead to formation of higher concentration thin films 21 . Other ABI derivative concentration is limited due to crystallization at high concentrations 22 .…”

Section: Resaults and Discussionmentioning

confidence: 99%

Determination of Kerr and two-photon absorption coefficients of ABI thin films

Nitišs

Rutkis

2018

Nonlinear Optics and Its Applications 2018

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In this paper we report the results of studied nonlinear optical properties of DMABI-Ph6 in form of solutions with chloroform as solvent and guest-host thin films with poly(methyl methacrylate) as host material. We implemented the Zscan method for studies of Kerr and two-photon absorption of selected material. During experimental measurements we used 1064 nm Nd:YAG laser with 30 ps pulse duration and 10 Hz repetition rate. From acquired values of Kerr coefficients we calculated values for real part of third-order susceptibility, as well as second-order hyperpolarizability. Acquired data for DMABI-Ph6 were compared with data for other ABI derivatives studied previously to describe how different donor and acceptor groups influence third-order nonlinear optical properties.

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“…Organic electro-optic (EO) materials have been developed for use in electro-optical modulation devices due to their high EO coefficients and low optical absorption in the visible and infrared ranges [85]. Nitiss et al investigated an EO waveguide modulator based on all-organic materials with a Mach–Zehnder interference structure using DLW technology [86]. SU-8 is selected as the waveguide core layer material of the modulator with low propagation loss, while DMABI-Ph6-doped PMMA is used as the cladding material due to its nonlinear electro-optic properties.…”

Section: Polymer-based Electro/magnetic Devices By Dlwmentioning

confidence: 99%

Polymer-Based Device Fabrication and Applications Using Direct Laser Writing Technology

Yin

et al. 2019

Polymers

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Polymer materials exhibit unique properties in the fabrication of optical waveguide devices, electromagnetic devices, and bio-devices. Direct laser writing (DLW) technology is widely used for micro-structure fabrication due to its high processing precision, low cost, and no need for mask exposure. This paper reviews the latest research progresses of polymer-based micro/nano-devices fabricated using the DLW technique as well as their applications. In order to realize various device structures and functions, different manufacture parameters of DLW systems are adopted, which are also investigated in this work. The flexible use of the DLW process in various polymer-based microstructures, including optical, electronic, magnetic, and biomedical devices are reviewed together with their applications. In addition, polymer materials which are developed with unique properties for the use of DLW technology are also discussed.

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

Cited by 20 publications

References 38 publications

All-Organic Waveguide Sensor for Volatile Solvent Sensing

All-Organic Waveguide Sensor for Volatile Solvent Sensing

Determination of Kerr and two-photon absorption coefficients of ABI thin films

Polymer-Based Device Fabrication and Applications Using Direct Laser Writing Technology

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