Photonic Applications With the Organic Nonlinear Optical Crystal DAST

Jazbinšek, Mojca; Mutter, Lukas; Günter, Peter

doi:10.1109/jstqe.2008.921407

Cited by 248 publications

(155 citation statements)

References 110 publications

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“…Organic nonlinear optical crystals have many applications in biological labelling [8,9]. Fluorescent crystals can be used for bio sensing, optical data storage, document security, detecting forgery [10], and photo induced electron transfer property for light harvesting [11,12].…”

Section: Introductionmentioning

confidence: 99%

Non-blinking dendritic crystals from C-dot solution

Mewada¹,

Vishwakarma²,

Patil³

et al. 2015

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Bio-imaging and drug carriers for delivery have created a huge demand for crystals. Crystals are fascinating materials that have been grown for a long time but obtaining biocompatible fluorescent crystals is a challenging task. We report on the growth of fluorescent crystals using a carbon dot (C-dot) solution by a hydrothermal process. The crystallization pattern of these C-dots exhibited a unique dendritic structure having a feather-like morphology. The growth temperature and pressure were maintained at 60°C and 200 mmHg, respectively, for crystal growth. A green fluorescence (under UV light) that was observed in the C-dot solution was retained in the crystals formed from the solution. Cytotoxicity studies on Vero cells revealed the crystals to be extremely biocompatible. These fluorescent crystals are extremely well suited for biomedical and optoelectronic applications.

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Section: Introductionmentioning

confidence: 99%

Non-blinking dendritic crystals from C-dot solution

Mewada¹,

Vishwakarma²,

Patil³

et al. 2015

Carbon letters

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“…We observe that the assumed nonlinear susceptibility of 230 pm/V is a very conservative value. In fact, nonlinear susceptibilities of 354 pm/V have already been measured at optical frequencies in nonlinear polymers [49], and this value increases to 580 pm/V for organic crystals [50].…”

Section: Power Levels and Conversion Efficienciesmentioning

confidence: 95%

Silicon-organic hybrid devices

et al. 2013

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Silicon-organic hybrid (SOH) devices combine silicon waveguides with a number of specialized materials, ranging from third-order optically-nonlinear molecules to second-order nonlinear polymers and liquid-crystals. Second-order nonlinear materials allow building high-speed and low-voltage electro-optic modulators, which are key components for future silicon-based photonics transceivers. We report on a 90 GHz bandwidth phase modulator, and on a 56 Gbit/s QPSK experiment using an IQ Pockels effect modulator. By using liquid-crystal claddings instead, we show experimentally that phase shifters with record-low power consumption and ultra-low voltage-length product of V π L = 0.06 Vmm. Secondorder nonlinear materials, moreover, allow creating nonlinear waveguides for sum-or difference-frequency generation, and for lowest-noise optical parametric amplification. These processes are exploited for a large variety of applications, like in the emerging field of on-chip generation of mid-IR wavelengths, where pump powers are significantly smaller compared to equivalent devices using third-order nonlinear materials. In this work, we present the first SOH waveguide design suited for second-order nonlinear processes. We predict for our device an amplification of 14 dB/cm assuming a conservative χ (2) -nonlinearity of 230 pm/V and a CW pump power as low as 20 dBm.

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“…LGS (Ren et al, 2010c), Nd:YGG (Zhao et al, 2011a), Nd:BSO , Nd:CBN (Tan et al, 2009b), DAST (Jazbinsek et al, 2008) etc.) and Er 3+ -doped telluride glass (Berneschi et al, 2007b), achieving unprecedented control over the refractive index changes of the substrate.…”

Section: Methodsmentioning

confidence: 99%