Ultrahigh <i>Q</i> Polymer Microring Resonators for Biosensing Applications

Tu, Xiaoguang; Chen, Sung‐Liang; Song, Chaolong; Huang, Tianye; Guo, L. Jay

doi:10.1109/jphot.2019.2899666

Cited by 32 publications

(20 citation statements)

References 34 publications

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“…From such relations, we readily find that high-Q resonances are always beneficial. Indeed, many high-Q resonators, including photonic crystal cavities (PhC) [11], [12], micro-ring resonators [13], [14], whispering gallery mode cavities [15], [16], etc., have been explored for building compact on-chip integrated RI sensors. For PhC devices, localized PhC defect cavities [17]- [20] offer a moderately high Q of 10 4 ∼ 10 5 , but small field overlap with the analyte limits their sensitivities.…”

Section: Introductionmentioning

confidence: 99%

High-Sensitive Refractive Index Sensing Enabled by Topological Charge Evolution

Chen

Yin

et al. 2020

IEEE Photonics J.

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A high-sensitive refractive index sensor is proposed and demonstrated by utilizing merging bound states in the continuum, namely a set of integer topological charges in the momentum space. Through varying cladding refractive index n c , the topological charges continuously depart from the merging state, and result in the robust and considerable high-Q factors (above 7 × 10 4) in a large detection range of 0.456. In such a range, sensing sensitivity of ∼36 nm/RIU and figureof-merit from ∼5990 (air) to 1607 (n c =1.456) are achieved. Meanwhile, the detection limit on the order of 10 −5 RIU is clearly distinguishable from the measured spectrum under tiny variation of cladding refractive index. Our work paves the way for promising integrated high-sensitive sensors in many biological and chemical applications.

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Section: Introductionmentioning

confidence: 99%

High-Sensitive Refractive Index Sensing Enabled by Topological Charge Evolution

Chen

Yin

et al. 2020

IEEE Photonics J.

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“…Photonic integrated circuits (PICs) are widely employed in the field of data- and telecommunication 1 , and have gained much attention in various other fields of application such as bio-medical and chemical sensing 2,3 , optical gyroscopes 4,5 , optical coherence tomography 6,7 , and astronomy 8 . Most of these PICs rely either on an external coupling of coherent light into the chip, which can be achieved for example by end-facet 9 or grating coupling 10,11 , or the heterogeneous integration of a semiconductor laser through bonding.…”

Section: Introductionmentioning

confidence: 99%

Slot-Waveguide Silicon Nitride Organic Hybrid Distributed Feedback Laser

Vogelbacher

Sagmeister

Kraft

et al. 2019

Sci Rep

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One of the major barriers for a widespread commercial uptake of silicon nitride photonic integrated circuits for cost-sensitive applications is the lack of low-cost monolithically integrated laser light sources directly emitting into single-mode waveguides. In this work, we demonstrate an optically pumped organic solid-state slot-waveguide distributed feedback laser designed for a silicon nitride organic hybrid photonic platform. Pulsed optical excitation of the gain medium is achieved by a 450 nm laser diode. The optical feedback for lasing is based on a second-order laterally coupled Bragg grating with a slot-waveguide core. Optimized material gain properties of the organic dye together with the increased modal gain of the laser mode arising from the improved overlap of the slot-waveguide geometry with the gain material enable single-mode lasing at a wavelength of 600 nm. The straightforward integration and operation with a blue laser diode leads to a cost-effective coherent light source for photonic integrated devices.

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“…As for [35], 6000 µm radius decrease the loss but also FSR to 0.017 nm, which limits applications of the devices. Owing to the loss of polymer waveguides [21], it is hard to get a Q-factor of >10 6 . In Reference [20], a rolled-up microtubes (RUMs)/ silicon-on-insulator (SOI) waveguide system with high-quality-factor of 1.5 × 10 5 is demonstrated.…”

Section: Device Fabrication and Characterizationmentioning

confidence: 99%

“…In particular, the microring resonators (MRRs) with compact sizes and ultrahigh-Q factors show great potential in lasers [10][11][12][13][14]20], sensors [21][22][23][24], and filters [25][26][27][28]. Compared with basic MRRs, the racetrack MRRs using lateral coupling, increase the coupling gap size and the fabrication tolerance.…”

Section: Introductionmentioning

confidence: 99%

High-Q-Factor Silica-Based Racetrack Microring Resonators

Yin

Zhang

et al. 2021

Photonics

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In this paper, ultrahigh-Q factor racetrack microring resonators (MRRs) are demonstrated based on silica planar lightwave circuits (PLCs) platform. A loaded ultrahigh-Q factor Qload of 1.83 × 106 is obtained. The MRRs are packaged with fiber-to-fiber loss of ~5 dB. A notch depth of 3 dB and ~137 pm FSR are observed. These MRRs show great potential in optical communications as filters. Moreover, the devices are suitable used in monolithic integration and hybrid integration with other devices, especially in external cavity lasers (ECLs) to realize ultranarrow linewidths.

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Ultrahigh Q Polymer Microring Resonators for Biosensing Applications

Cited by 32 publications

References 34 publications

High-Sensitive Refractive Index Sensing Enabled by Topological Charge Evolution

High-Sensitive Refractive Index Sensing Enabled by Topological Charge Evolution

Slot-Waveguide Silicon Nitride Organic Hybrid Distributed Feedback Laser

High-Q-Factor Silica-Based Racetrack Microring Resonators

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