The RakichLab explores new strategies to harness photons, phonons, and nonlinearities to build the next generation of integrated technologies for quantum information processing, communications, and precision measurements. Our research spans integrated photonics, quantum optomechanics, and ultralow noise oscillators—combining theory, materials spectroscopy, and nanofabrication to push the limits of performance.
Cavity Optomechanics:
We develop acoustic resonators that enable long-lived storage of quantum information in phonons. Using cavity optomechanics, we control these phonon modes with light, achieving single-mode manipulation and laser cooling to the quantum ground state. Our current work focuses on using these systems as quantum memories, with additional applications in photon generation, quantum transduction, and phonon entanglement.
Integrated Photonics:
Controlling photons, phonons, and nonlinearities
The Rakich Lab specializes in integrated photonic systems that harness photons, phonons, and nonlinearities to realize next-generation quantum computing, communications, sensing, and optical clock technologies. We specialize in the use of engineerable linear and nonlinear interactions based on photon-phonon couplings and electronic nonlinearities to shape and control light in photonic circuits as well as new cavity technologies that offer ultra long storage times, ultra-low noise, and enhanced light-matter coupling for classical and quantum applications.
Quantum Acoustics:
We investigate new strategies to create and control mechanical oscillators with exceptional coherence, tailored for quantum applications such as memory, transduction, and fundamental tests of quantum mechanics. By combining advanced materials characterization with novel phonon spectroscopy techniques we identify the microscopic origins of dissipation and noise with unprecedented precision. This deepened understanding informs the design of ultra-low-loss mechanical systems that serve as robust platforms for hybrid quantum technologies, bridging optics, electronics, and atomic systems.
Ultra low Noise Oscillators:
We create compact, ultrastable oscillators and lasers with performance rivaling laboratory-scale systems. Leveraging vacuum-gap Fabry–Perot cavities, scalable micromirrors, and chip-based integration techniques pioneered by our group, devices achieve sub-Hertz linewidths and frequency instabilities at 10⁻¹⁴ levels. These oscillators underpin applications in atomic clocks, frequency metrology, and low-noise microwave synthesis—enabling new frontiers in portable and integrated precision measurement systems.
