Focusing membrane metamirrors for integrated cavity optomechanics

التفاصيل البيبلوغرافية
العنوان: Focusing membrane metamirrors for integrated cavity optomechanics
المؤلفون: Agrawal, A. R., Manley, J., Allepuz-Requena, D., Wilson, D. J.
سنة النشر: 2024
المجموعة: Physics (Other)
Quantum Physics
مصطلحات موضوعية: Physics - Optics, Physics - Applied Physics, Quantum Physics
الوصف: We have realized a suspended, high-reflectivity focusing metamirror ($f\approx 10$ cm, $\mathcal{R} \approx 99\%$) by non-periodic photonic crystal patterning of a Si$_3$N$_4$ membrane. The design enables construction of a stable, short ($L$ = 30 $\mu$m), high-finesse ($\mathcal{F}>600$) membrane cavity optomechanical system using a single plano dielectric end-mirror. We present the metamirror design, fabrication process, and characterization of its reflectivity using both free space and cavity-based transmission measurements. The mirror's effective radius of curvature is inferred from the transverse mode spectrum of the cavity. In combination with phononic engineering and metallization, focusing membrane mirrors offer a route towards high-cooperativity, vertically-integrated cavity optomechanical systems with applications ranging from precision force sensing to hybrid quantum transduction.
Comment: 6 pages, 5 figures
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2401.16695
رقم الأكسشن: edsarx.2401.16695
قاعدة البيانات: arXiv