Dual functional optofluidic platform based on light-actuated air plug

Farzeena, Chalikkara; Singha, Pradip; Varanakkottu, Subramanyan Namboodiri

doi:10.1016/j.sna.2018.12.013

Cited by 3 publications

(1 citation statement)

References 35 publications

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“…24 With opto°uidic technology, optical devices can be modi¯ed and new functions are created. 25,26 In general, the opto°uidic design can be applied to any photonic structure in which there is an empty space. The optical field interacts with the optical°uid in¯ltrated in the device and changes the local optical properties.…”

Section: Introductionmentioning

confidence: 99%

Tunable wavelength conversion based on optofluidic infiltrated photonic crystal fibers

Pakarzadeh

Derakhshan

Hosseinabadi

2019

J. Nonlinear Optic. Phys. Mat.

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In this paper, wavelength conversion based on optofluidic infiltration of photonic crystal fibers (PCFs) is investigated to achieve the suitable wavelength over wide tunable range. For this purpose, two designs of PCFs (the so-called PCF1 and PCF2) with appropriate dispersion properties are simulated, and wavelength conversion via four-wave mixing process for pump wavelengths in both normal and anomalous dispersion regimes is studied. By changing the refractive index [Formula: see text] of the optical fluid infiltrated into the PCF air-holes and then varying the fiber dispersion properties, the converted wavelength region can be tuned. The results show that for the pump wavelength in the normal dispersion regime, the PCF1 infiltrated with [Formula: see text] and PCF2 infiltrated with [Formula: see text] exhibit the maximum wavelength shift. Moreover, the wavelength shift is much higher than that obtained in the anomalous dispersion regime and it can be further increased by increasing the input pump power.

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Section: Introductionmentioning

confidence: 99%

Tunable wavelength conversion based on optofluidic infiltrated photonic crystal fibers

Pakarzadeh

Derakhshan

Hosseinabadi

2019

J. Nonlinear Optic. Phys. Mat.

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Manipulation of liquid transport and droplet switch using light-actuated surface tension

Zhao,

Zhang,

2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Optofluidic modulator based on thermoplasmonically controlled liquid–liquid interface

Farzeena

Varanakkottu

2021

Opt. Lett.

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We report a thermoplasmonically actuated optical modulator based on a liquid–liquid interface decorated with self-assembled Au nanoparticles (Au NPs). The system comprises heptane (top layer) and water (bottom layer), and an Au NPs array at their interfaces. Focused excitation with the plasmonic wavelength (532 nm) generates a localized temperature rise at the interface ( Δ T = 3.2 ± 0.7 ∘ C ), resulting in a thermocapillary flow. We optimized the temperature gradient and the heptane layer thickness so that the resulting thermocapillary flow leads to the formation of a “self-healing hole” at the irradiating zone, which we exploited as an all-optical modulator. A signal beam (655 nm) positioned through the top layer, parallel to the interface, gives a maximum output when the layer is intact (no-hole situation, ON state) and a minimum output when the hole is present (OFF state). Nearly 100% optical modulation is achieved in a reversible manner, highlighting the potential of responsive and reconfigurable fluid–fluid interfaces for optical applications.

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Dual functional optofluidic platform based on light-actuated air plug

Cited by 3 publications

References 35 publications

Tunable wavelength conversion based on optofluidic infiltrated photonic crystal fibers

Tunable wavelength conversion based on optofluidic infiltrated photonic crystal fibers

Manipulation of liquid transport and droplet switch using light-actuated surface tension

Optofluidic modulator based on thermoplasmonically controlled liquid–liquid interface

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