2604.01276 Optomechanical Accelerometers Based on Photonic Crystal Cavities Achieve 10-Nano-g Sensitivity at 1 kHz Bandwidth: Approaching the Standard Quantum Limit
We report a systematic investigation of optomechanical sensors with quantitative characterization spanning multiple length scales and operating regimes. Our methodology combines first-principles theoretical analysis, finite-element numerical simulations, and experimental measurements on fabricated samples to establish precise performance boundaries.