Abstract: For decades, scientists have pursued a bold goal: creating a laser that works not just with visible light but with powerful X-rays. Conventional X-ray sources, essential in medicine, security, and technology, are based on principles dating back to Röntgen’s discovery in 1895, essentially a brighter, more advanced X-ray light bulb. But just as lasers revolutionized the way we harness visible light, an X-ray laser would unlock extraordinary new capabilities in science and technology. The challenge? Generating such intense, precise X-ray beams once required enormous machines and extreme conditions. Remarkably, advances in quantum physics have changed this. Researchers can now create compact, tabletop X-ray lasers, a breakthrough opening the door to next-generation microscopes that reveal the nano-world with stunning clarity and in real time. This lecture will explore how quantum science made this possible and what it means for the future of imaging, materials, and more.
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