IIT Bombay is set to take quantum technology to new heights with its innovative Quantum Sensing and Metrology Hub (Qmet). Headed by Professor Kasturi Saha, the hub is poised to revolutionise the world of quantum sensing through groundbreaking research and lab-grown technologies.
The Qmet initiative, part of the National Quantum Mission (NQM), brings together 16 institutes and 40 researchers across India with a shared vision: to bridge the gap between fundamental quantum research and its practical applications. One of the key areas of focus is precision metrology, sensing, and imaging, using cutting-edge tools like the quantum diamond microscope and portable magnetometer, developed at IIT Bombay’s P-Quest Lab.
Diamonds, specifically lab-grown CVD diamonds, are central to Prof Saha’s research. Her team explores nitrogen vacancy (NV) centres in diamonds, which act as ultra-sensitive magnetic field sensors. This quantum diamond microscope, when excited with fluorescent light, detects red light emission, allowing it to measure magnetic fields at a highly sensitive level. One of the team’s primary goals is to apply this technology to non-destructive semiconductor testing, mapping magnetic fields within encapsulated chips.
The research also extends to biological sensing, where the team examines the magnetic fields generated by neuronal cultures. By precisely measuring these tiny magnetic fields, they hope to track individual neurons, opening up possibilities for advanced neurological research.
Moreover, the team is developing portable magnetometers that could be used in drones for surveillance, a significant step towards practical applications in various fields. Their research also explores different magnetic materials for quantum applications, including creating magnetic maps to improve understanding of quantum materials.
The Qmet hub’s efforts align with the NQM’s goal of advancing quantum technologies in India. With a focus on enhancing spatial resolution for quantum microscopy, IIT Bombay is paving the way for a new era of quantum devices that push the limits of sensitivity and precision.
