Quantum Diamond Microscopy Introduced at ESTIC to Support Neuroscience and Materials Research
Under the National Quantum Mission (NQM) initiated by the Department of Science and Technology (DST), researchers at IIT Bombay have unveiled India’s first indigenous Quantum Diamond Microscope (QDM). This groundbreaking development in quantum sensing has not only achieved a significant milestone but has also secured India’s first patent in this innovative field. The QDM, announced during the Emerging Science Technology and Innovation Conclave (ESTIC 2025), holds great promise for applications in neuroscience, materials research, and the non-destructive evaluation of semiconductor chips.
The Quantum Diamond Microscope, developed by the P-Quest Group under the leadership of Professor Kasturi Saha, utilizes nitrogen-vacancy (NV) centers in diamond to facilitate advanced three-dimensional magnetic field imaging at the nanoscale. NV centers are atomic-scale defects formed by a nitrogen atom adjacent to a vacancy in the diamond lattice. These centers exhibit remarkable quantum coherence even at room temperature, making them highly sensitive to variations in magnetic, electric, and thermal fields. The QDM employs optically detected magnetic resonance (ODMR) to achieve optical readout of local magnetic fields, enabling detailed imaging of dynamic magnetic activities similar to traditional optical microscopes.
Enhancing Semiconductor Chip Evaluation
As the demand for advanced electronics grows, particularly with the rise of 3D chip architectures and cryogenic processors, conventional diagnostic tools struggle to visualize complex current paths and multilayer charge flows. The QDM addresses this challenge by providing a direct and high-resolution method for 3D magnetic mapping of integrated circuits, batteries, and microelectronic devices. This capability is crucial for the development and evaluation of next-generation semiconductor technologies, allowing for more precise diagnostics and improved performance assessments.
Future Prospects and Integration with AI
Aligned with the objectives of India’s National Quantum Mission, Professor Saha’s team is focused on enhancing the QDM by integrating it with artificial intelligence and machine learning-based computational imaging techniques. This integration aims to advance the capabilities of the microscope, paving the way for innovative applications in chip diagnostics, biological imaging, and geological magnetization studies. By achieving precise three-dimensional visualization of magnetic fields, the QDM is set to revolutionize various fields of research and technology, offering new insights and solutions.
Official Announcement and Recognition
The formal announcement of the Quantum Diamond Microscope took place in the presence of notable figures, including Dr. Jitendra Singh, the Union Minister for Science and Technology, and other prominent officials from the scientific community. This recognition highlights the significance of the QDM in the realm of quantum sensing and its potential impact on various scientific and technological domains. As India continues to invest in quantum technologies, the QDM stands as a testament to the country’s growing capabilities in this cutting-edge field.
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