Low-loss and high-resolution mechanical mode tuning in microspheres
| Autor: | Gui-Lu Long, Jing-yu Liang, Dong Ruan, Min Wang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
business.industry 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics Synchronization (alternating current) Vibration Laser linewidth Optics Quality (physics) Modulation 0103 physical sciences Mechanical resonance 0210 nano-technology business Frequency modulation Optomechanics |
| Zdroj: | Optics letters. 46(7) |
| ISSN: | 1539-4794 |
| Popis: | Lack of tunability impedes the wide application of optomechanical systems; however, little research exists on mechanical frequency tuning. Herein, ultra-fine low-loss dynamical mechanical frequency tuning is achieved by compressing a microsphere along the axial direction. The tuning resolution reaches approximately 4% of the mechanical linewidth, and the variation range of the mechanical quality factor ( Q m ) is within 2.9% of the untouched Q m . The roles of geometric deformation, spring effect, and stiffness were also evaluated through simulation and experimental analysis. Furthermore, sine function modulation was displayed, with a Pearson coefficient exceeding 99.3%, to achieve arbitrary-function mechanical resonance tuning. This method paves the way for scalable optomechanical applications, such as mechanical vibration synchronization or optomechanics-based optical wavelength conversion. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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