Refractometry-based air pressure sensing using glass microspheres as high- Q whispering-gallery mode microresonators
| Autor: | Frank Vollmer, Alejandro Federico, Sivaraman Subramanian, Arturo Bianchetti, Serge Vincent |
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| Rok vydání: | 2017 |
| Předmět: |
Work (thermodynamics)
Materials science Atmospheric pressure business.industry 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics Glass microsphere Optics 0103 physical sciences Sensitivity (control systems) Electrical and Electronic Engineering Physical and Theoretical Chemistry Whispering-gallery wave 0210 nano-technology business Refractometry Refractive index |
| Zdroj: | Optics Communications. 394:152-156 |
| ISSN: | 0030-4018 |
| Popis: | In this work a refractometric air pressure sensing platform based on spherical whispering-gallery mode microresonators is presented and analyzed. The sensitivity of this sensing approach is characterized by measuring the whispering-gallery mode spectral shifts caused by a change of air refractive index produced by dynamic sinusoidal pressure variations that lie between extremes of ± 1.8 kPa . A theoretical frame of work is developed to characterize the refractometric air pressure sensing platform by using the Ciddor equation for the refractive index of air, and a comparison is made against experimental results for the purpose of performance evaluation. |
| Databáze: | OpenAIRE |
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