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(DARPA) Optical Radiation Cooling and Heating In Integrated Devices: Circuit cavity optomechanics for cooling and amplification on a silicon chip

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Final rept. 15 Jun 2010-14 Jun 2015

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In this DARPAs ORCHID program, YaleColumbias team focuses on chip-scale optomechanics with emphasis on circuit integration on silicon platforms. In Phase I 062010-062012, we advanced the-state-of-art cavity optomechanical devices with performance parameters exceeding DARPAs specifications. Selected high performance devices are optimized for specific applications 1 low-noise optomechanical oscillators 2 femtogram optomechanical cavities for sensing 3 strong optomechanical backaction and coherent control for quantum transducers. In Phase II 072012-062015, we added electronic control in Cavity Optomechanics and developed a number of cavity electro-optomechanical systems for realizing strong coupling between photon, phonon and microwave fields. These cavity electro-optomechanical systems were fabricated three different material systems -- Si, SiN and AlN. The latter two substrate systems were first designed by our team and now become very popular in Optomechanics community. Particular to the silicon platform, we developed a post-CMOS process which allowed the interrogation of Optomechanics on a CMOS platform with integrated Germanium detectors. The most notable accomplishments we have made in Phase II include 1 The development of AlN-on-silicon platform for cavity electro-optomechanics and nonlinear optics 2 Development of X-band optomechanical oscillators 3 Discovery of phonon radiation pressure in optomechanical resonators 4 Demonstration of coherent control of cavity electro-mechanical resonators 5 Non-volatile optomechanical switches and memory 6 Photonic synchronization of two coupled resonators. Throughout this program, we published 48 journal papers, gave 80 invited talksseminars, and contributed to 40 conference proceedings. A full list of papers we published in this period can be found in Appendix I.

Subject Categories:

  • Electrical and Electronic Equipment
  • Electrooptical and Optoelectronic Devices
  • Optics
  • Nuclear Physics and Elementary Particle Physics

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