An improved molecular design of obtaining NLO active molecular glasses using triphenyl moieties as amorphous phase formation enhancers

Traskovskis, Kaspars; Mihailovs, Igors; Tokmakovs, Andrejs; Kokars, Valdis; Rutkis, Mārtiņš

doi:10.1117/12.922391

Cited by 2 publications

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“…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. The refractive index of PMMA + DMABI-Ph6 mix grows linearly with an increase of chromophore concentration c expressed in wt% as DMABI-Ph6 and the PMMA + DMABI-Ph6 mass ratio.…”

Section: Sensor Preparationmentioning

confidence: 99%

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: Sensor Preparationmentioning

confidence: 99%

All-Organic Waveguide Sensor for Volatile Solvent Sensing

et al. 2019

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“…We used a low molecular weight compound 2-(4-(bis(5,5,5triphenylpentyl)amino)benzylidene)-1H-indene-1,3(2H)-dione (DMABI-Ph6) as an NLO chromophore for doping a PMMA matrix. DMABI-Ph6 is an organic glass forming compound with an absorption peak at 500 nm [31]. The absorbance spectrum and the molecular structure of DMABI-Ph6 is shown in Fig.…”

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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An improved molecular design of obtaining NLO active molecular glasses using triphenyl moieties as amorphous phase formation enhancers

Cited by 2 publications

References 0 publications

All-Organic Waveguide Sensor for Volatile Solvent Sensing

All-Organic Waveguide Sensor for Volatile Solvent Sensing

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

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