A5021740029- Mechanical and Optical Resonators
- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Platelet Disorders and Treatments
- Advanced MEMS and NEMS Technologies
- Mechanical Circulatory Support Devices
- Underwater Acoustics Research
- Radio Wave Propagation Studies
- Laser-Matter Interactions and Applications
- Complement system in diseases
- Advanced Fiber Optic Sensors
- Force Microscopy Techniques and Applications
- Ocean Waves and Remote Sensing
Yale University
1998-2015
Naval Undersea Warfare Center
2000
Cavity optomechanics offers powerful methods for controlling optical fields and mechanical motion. A number of proposals have predicted that this control can be extended considerably in devices where multiple cavity modes couple to each other via the motion a single oscillator. Here we study dynamical properties such multimode optomechanical device, which coupling between results from mechanically-induced avoided crossings cavity's spectrum. Near find spring shows distinct features arise...
We demonstrate a cryogenic optomechanical system comprising flexible Si3N4 membrane placed at the center of free-space optical cavity in 400 mK environment. observe mechanical quality factor Q > 4 x 10^6 for 261-kHz fundamental drum-head mode membrane, and resonance halfwidth 60 kHz. The therefore operates resolved sideband limit. monitor membrane's thermal motion using heterodyne circuit capable simultaneously measuring both sidebands, find that observed spring damping quantitatively agree...
In the 20th century, an important contribution to modeling of wave propagation prediction is Parabolic Equation (PE) approximation method. This did not happen until last quarter century. During that time period, a number contributions were made in first 15 years, then, continuously end Contributions PE method are still going on. second half 1970 when was introduced field underwater acoustics, its main purpose predict long-range, low-frequency acoustic propagations under range-dependent...
Abstract Acoustic detection has many applications across science and technology, from medical to imaging communications. However, most acoustic sensors have a common limitation in that the must be near source. Alternatively laser interferometry with picometer-scale motional displacement can rapidly precisely measure sound-induced minute vibrations on remote surfaces. Here we demonstrate feasibility of sound up 100 kHz at sites ~ 30 m standoff distances via homodyne interferometry. Based our...
We present the intensity noise and comb line linewidth in optical frequency microcombs. The measured short-term linewidths are -153 dB/Hz at 100 kHz offset 3.5 ± 0.68 kHz.
Introduction: Complement activation contributes to the inflammatory response cardiopulmonary bypass, but understanding of role specific complement components is evolving. We have previously used simulated extracorporeal circulation (SECC) show that C5a and C5b-9 inhibition blocks PMN not monocyte activation. This investigation a inhibiting protein (CAB-2.1) which C3a as well formation [2] examined its effects on leukocyte during SECC. Methods: SECC circuits were assembled run described [1]....