Optimized optomechanical crystal cavity with acoustic radiation shield

By J. Chan, A. Safavi-Naeini, J. T. Hill, S. Meenehan, Oskar J. Painter. 2012

330 citations recorded by the source corpus.

We present the design of an optomechanical crystal nanobeam cavity that combines finite-element simulation with numerical optimization, and considers the optomechanical coupling arising from both moving dielectric boundaries and the photo-elastic effect. Applying this methodology results in a nanobeam with an experimentally realized intrinsic optical Q-factor of 1.2×10^6, a mechanical frequency of 5.1 GHz, a mechanical Q-factor of 6.8×10^5 (at T = 10 K), and a zero-point-motion optomechanical coupling rate of g = 1.1 MHz.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/8af4ff00b06080a3a26eb2a2bb2753459a0dd12a

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. Oskar J. Painter
2. Mikhail D. Lukin
3. N. J. Gerard
4. Yun Jing
5. Yuanchen Deng
6. M. Markham
7. Daniel J. Twitchen
8. Mourad Oudich

In Materials Chemistry

1. Mikhail D. Lukin
2. M. Markham
3. Daniel J. Twitchen

In Mechanics of Materials

1. N. J. Gerard
2. Yun Jing
3. Yuanchen Deng
4. Mourad Oudich

Citations in the corpus

• Diamond optomechanical crystals (2015, methodology): “To realize a diamond OMC cavity from the aforementioned OMC waveguide, the lattice of air holes is chirped [19] so as to transition from a “mirror” region formed by the base unit cell in Fig.”
• Pulsed excitation dynamics of an optomechanical crystal resonator near its quantum ground-state of motion (2015, neutral): “Recent measurements at millikelvin (mK) bath temperatures of an OMC resonator formed from single-crystal silicon [13,17], however, have shown substantial mechanical mode heating and damping due to weak sub-band-gap optical absorption [18].”
• Tailoring Structure‐Borne Sound through Bandgap Engineering in Phononic Crystals and Metamaterials: A Comprehensive Review (2022, background): “Further, in high precision experimental optomechanics, a phononic shield is designed using a well-tailored PnC with wide BG to suppress mechanical losses created from coupling between the modes due to symmetry breaking caused by fabrication imperfections at the nano-scale [142,144,146,148,244] (Figs”