Ravi’s research investigates solid-state emitters coupled to a nanophotonic environment for realizing photonic qubits and spin-photon interfaces. He envisions that such nanophotonic devices will pave the way for real-world applications in quantum communication, simulation, and quantum-enhanced imaging. Ravi enjoys interacting with and training graduate and undergraduate students on optics, quantum physics, and statistical mechanics. Prior to UI, Ravi carried out research across the world [Niels Bohr Institute (Denmark), University of Twente (Netherlands), and TIFR (India)] and continues to maintain active international collaborations. Ravi is the lead PI of the UI-QuantumSimulation team that was awarded a Jumpstarting Tomorrow grant in 2021.

Research interests

• Quantum information
• Light-matter interactions
• Nanophotonics
• Quantum coherent control
• Single emitter spectroscopy

Research

• Single- and entangled-photon generation from quantum dots
• Coherent quantum control of semiconductor qubits
• Design and fabrication of nanophotonic light-matter interfaces (waveguides, cavities) in dielectric media
• Wavefront control of quantum light for secure communication
• Benchmark fundamental limits on quantum algorithms imposed by physical implementation of qubits
• Students learn to design and build cryogenic optical microscopy setups for investigating quantum nature of emission from single emitters
• Students are involved in the design and can learn to use micro-/nano-fabrication facilities at MATFab
• Students gain hands-on experience with ultrafast lasers, multiphoton correlation measurements using state-of-the-art experimental hardware
• Students learn to develop projects independently while communicating and working with local and international collaborators as well as publish and present at conferences.