Low threshold Fabry-Perot optofluidic resonator fabricated by femtosecond laser micromachining

Simoni, F.; Bonfadini, Silvio; Spegni, P.; Turco, Sara Lo; Lucchetta, D. E.; Criante, Luigino

doi:10.1364/oe.24.017416

Cited by 22 publications

(16 citation statements)

References 17 publications

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“…High-resolution transmission and reflection holographic gratings written in polymeric materials are known and investigated for a long time [1,2], and cover a large variety of applications, ranging from high density data storage [3][4][5], to lasing [6,7], to super-fast holographic displays [8]. More recently, all optically addressable holographic gratings have been also widely studied.…”

Section: Introductionmentioning

confidence: 99%

Light-Induced Dynamic Holography

Lucchetta

Donato

Paturzo³

et al. 2022

Micromachines

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Holographic photomobile polymers (H-PMP) are a novel class of photomobile materials in which holograms can be optically recorded. They can be used in a large variety of applications, including optical switches and color selectors. In this work, we show one of the most important properties of the photomobile film, which is the photophobicity of the unpolymerized parts of the photomobile mixture. In order to investigate this property, we recorded a transmission phase grating on an H-PMP film, and used a different experimental technique to measure the diffraction efficiency, surface tension, and mixture properties. The results allowed for a better understanding of the mechanism of the light-controlled bending observed in these compounds.

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Section: Introductionmentioning

confidence: 99%

Light-Induced Dynamic Holography

Lucchetta

Donato

Paturzo³

et al. 2022

Micromachines

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“…these results are interesting since they demonstrate the possibility of realizing an optofluidic microlaser based on Fabry-Perot resonator using the above described technology, however the threshold looks high with respect to previous examples of optofluidic lasers based on fabry-perot cavity while the linewidth is of the same order of magnitude. On the contrary the performances of the longitudinal cavity are very good for a simple fabry-perot resonator since they show a quality factor Q ∼ 10 3 [17]. In this case using Rh6G in ethanol as active medium at a concentration of 5·10 −3 mol/l we get a threshold even below 2 µJ/mm 2 and a laser line width of ∼0.5 nm as shown in Figs.…”

Section: Fabry-perot Resonatorsmentioning

confidence: 90%

Optofluidic Microlasers based on Femtosecond Micromachining Technology

Simoni¹,

Spegni²,

Bonfadini³

et al. 2017

Optofluidics, Microfluidics and Nanofluidics

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Abstract:We present the different optofluidic lasers which have been realized using the Femtosecond Micromachining technique to fabricate the monolithic optofluidic structures in glass chips. We show how the great flexibility of this 3D technique allows getting different kind of optical cavities. The most recent devices fabricated by this technique as ring shaped and Fabry-Perot resonators show excellent emission performances. We also point out how the addition of the inkjet printing technique provides further opportunities in realizing optofluidic chips.

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“…For this reason, several interesting solutions have been proposed. Currently, the two most used on-a-chip light sources are dye lasers [4][5][6][7][8] and organic light-emitting devices (OLEDs) 9, 10 , whose outputs are respectively coherent and incoherent light signals. Other attempts are represented by fluorescent liquid-liquid ( L 2 ) 11 or liquid-air (LA) waveguides 12 , in which an external laser source promotes fluorescence in a specific region of the microfluidic channel.…”

Section: Integrating a Light Source Inside A Lab-on-a-chip (Loc) Platmentioning

confidence: 99%

Battery-free fully integrated microfluidic light source for portable lab-on-a-chip applications

Storti

Bonfadini

Criante

2020

Sci Rep

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Integrating a light source inside a Lab-on-a-Chip (LOC) platform has always been as challenging as much as an appealing task. Besides the manufacturing issues, one of the most limiting aspects is due to the need for an energy source to feed the light emission. A solution independent of external energy sources can be given by Chemiluminescence (CL): a well-known chemical phenomenon in which light emission is achieved because of a chemical reaction. Here we present the fabrication and the characterization of a chemiluminescent light source, fully integrated on a microfluidic platform by means of the direct writing technique known as Femtosecond Laser Micromachining. The key advantage is the possibility to insert within LOC devices light sources with complete placement freedom in 3D, wide flexibility of the emitting source geometry and no external feeding energy. The characterization is carried out by investigating the effect of confining a chemiluminescent rubrene-based reaction in small volumes and the inject pressures impact on the emission spectra. Moreover, exploiting microfluidics principles, it’s possible to move from the typical flash-type CL emission to a prolonged one (several hours). This allows to disengage bulky, external light sources, adding an extra step on the road to real device portability.

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Low threshold Fabry-Perot optofluidic resonator fabricated by femtosecond laser micromachining

Cited by 22 publications

References 17 publications

Light-Induced Dynamic Holography

Light-Induced Dynamic Holography

Optofluidic Microlasers based on Femtosecond Micromachining Technology

Battery-free fully integrated microfluidic light source for portable lab-on-a-chip applications

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