Lasing in Si3N4-Organic Hybrid (SiNOH) Spiral Resonators

Kohler, Daria; Wondimu, S. F.; Hahn, L.; Allegro, Isabel; Blaicher, Matthias; Freude, W.; Koos, C.

doi:10.1364/cleo_si.2018.sm4i.6

Cited by 4 publications

(3 citation statements)

References 6 publications

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“…On the other hand, planar waveguides (WG) transmitting injected or optically stimulated visible light have shown to be very promising for application in the field of integrated optical sensors and biosensors [ 6 ]. Examples of this include integrated Raman sensors [ 7 ], sensors based on Mach-Zehnder interferometers [ 8 , 9 ] and spiral resonators [ 10 ], and Bragg grating sensors [ 11 ]. The possibility of fabricating such photonic systems using CMOS-compatible techniques and materials could enable some important potential advantages, such as reduced costs, high volumes, small size, and easy parallelization to target a variety of mediums [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Luminescence from Si-Implanted SiO2-Si3N4 Nano Bi-Layers for Electrophotonic Integrated Si Light Sources

González-Fernández

Juvert

Aceves-Mijares

et al. 2019

Sensors

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In this paper, we present structural and luminescence studies of silicon-rich silicon oxide (SRO) and SRO-Si 3 N 4 bi-layers for integration in emitter-waveguide pairs that can be used for photonic lab-on-a-chip sensing applications. The results from bi and mono layers are also compared. Two clearly separated emission bands are respectively attributed to a combination of defect and quantum confinement–related emission in the SRO, as well as to defects found in an oxynitride transition zone that forms between the oxide and the nitride films, while ruling out quantum-confinement phenomena in the silicon nitride.

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Section: Introductionmentioning

confidence: 99%

Luminescence from Si-Implanted SiO2-Si3N4 Nano Bi-Layers for Electrophotonic Integrated Si Light Sources

González-Fernández

Juvert

Aceves-Mijares

et al. 2019

Sensors

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“…In this paper we expand on our previous demonstrations [25] of a new class of laser sources that can be efficiently integrated on the Si 3 N 4 platform using low-cost fabrication techniques without any additional lithographic structuring. The devices rely on a hybrid approach that combines nanophotonic Si 3 N 4 WG cores with dye-doped organic cladding materials which can be optically pumped by an external laser or a light-emitting diode (LED) without any high-precision alignment of the pump spot and without any mechanical contact to the chip.…”

Section: Introductionmentioning

confidence: 99%

“…In combination with simple camera read-out schemes, our concept shows a route towards disposable sensor chips for highly multiplexed detection of a wide range of analytes in point-of-care diagnostics. During the preparation of this manuscript, the concept of SiNOH lasers [25,26] was independently demonstrated by another group [27,28] using second-order DFB structures that are amenable to production with relaxed lithography resolution requirements. These experiments prove the viability of the concept and demonstrate its transferability to different photonic integration platforms.…”

Section: Introductionmentioning

confidence: 99%

Lasing in Si₃N₄-organic hybrid (SiNOH) waveguides

Kohler¹,

Allegro²,

Wondimu³

et al. 2020

Opt. Express

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Silicon nitride (Si 3 N 4) waveguides offer low-loss wave propagation over a wide spectral range including visible wavelengths and lend themselves to photonic integrated circuits for bio-photonic applications. The Si 3 N 4 device portfolio, however, is so far limited to passive devices that need to be fed by external light sources. This often requires delicate and costly fiber-chip coupling schemes that are subject to stringent alignment tolerances. In this paper, we present and investigate a class of lasers that combine Si 3 N 4 waveguides with light-emitting organic cladding materials in a hybrid approach. These Si 3 N 4-organic hybrid (SiNOH) lasers are operated by optical pumping from the top with low alignment precision. We theoretically and experimentally investigate different SiNOH laser concepts based on spiral-shaped ring resonators and distributed feedback (DFB) resonators. While our devices are designed for an emission wavelength of approximately 600 nm, the SiNOH laser concept can be transferred to a large range of wavelengths in the visible spectrum. The devices are amenable to cost-efficient mass production and have the potential to address a wide range of applications in bio-photonics and point-of-care diagnostics.

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Biophotonic sensors with integrated Si3N4-organic hybrid (SiNOH) lasers for point-of-care diagnostics

et al. 2021

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Early and efficient disease diagnosis with low-cost point-of-care devices is gaining importance for personalized medicine and public health protection. Within this context, waveguide-(WG)-based optical biosensors on the silicon-nitride (Si3N4) platform represent a particularly promising option, offering highly sensitive detection of indicative biomarkers in multiplexed sensor arrays operated by light in the visible-wavelength range. However, while passive Si3N4-based photonic circuits lend themselves to highly scalable mass production, the integration of low-cost light sources remains a challenge. In this paper, we demonstrate optical biosensors that combine Si3N4 sensor circuits with hybrid on-chip organic lasers. These Si3N4-organic hybrid (SiNOH) lasers rely on a dye-doped cladding material that are deposited on top of a passive WG and that are optically pumped by an external light source. Fabrication of the devices is simple: The underlying Si3N4 WGs are structured in a single lithography step, and the organic gain medium is subsequently applied by dispensing, spin-coating, or ink-jet printing processes. A highly parallel read-out of the optical sensor signals is accomplished with a simple camera. In our proof-of-concept experiment, we demonstrate the viability of the approach by detecting different concentrations of fibrinogen in phosphate-buffered saline solutions with a sensor-length (L-)-related sensitivity of S/L = 0.16 rad nM−1 mm−1. To our knowledge, this is the first demonstration of an integrated optical circuit driven by a co-integrated low-cost organic light source. We expect that the versatility of the device concept, the simple operation principle, and the compatibility with cost-efficient mass production will make the concept a highly attractive option for applications in biophotonics and point-of-care diagnostics.

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Lasing in Si3N4-Organic Hybrid (SiNOH) Spiral Resonators

Cited by 4 publications

References 6 publications

Luminescence from Si-Implanted SiO2-Si3N4 Nano Bi-Layers for Electrophotonic Integrated Si Light Sources

Luminescence from Si-Implanted SiO2-Si3N4 Nano Bi-Layers for Electrophotonic Integrated Si Light Sources

Lasing in Si₃N₄-organic hybrid (SiNOH) waveguides

Biophotonic sensors with integrated Si3N4-organic hybrid (SiNOH) lasers for point-of-care diagnostics

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Lasing in Si3N4-Organic Hybrid (SiNOH) Spiral Resonators

Cited by 4 publications

References 6 publications

Luminescence from Si-Implanted SiO2-Si3N4 Nano Bi-Layers for Electrophotonic Integrated Si Light Sources

Luminescence from Si-Implanted SiO2-Si3N4 Nano Bi-Layers for Electrophotonic Integrated Si Light Sources

Lasing in Si3N4-organic hybrid (SiNOH) waveguides

Biophotonic sensors with integrated Si3N4-organic hybrid (SiNOH) lasers for point-of-care diagnostics

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Lasing in Si₃N₄-organic hybrid (SiNOH) waveguides