The ability to control the colour, or emission wavelength, of light from quantum sources is central to the development of secure quantum communication networks and photonic-based computing. However, most systems capable of tuning quantum light require extreme conditions, for example, high voltages, strong magnetic fields, and even cryogenic environments.
A new study led by Associate Professor Dong Zhaogang from the Singapore University of Technology and Design (SUTD) has found a way to achieve substantial wavelength tuning at ambient conditions using tiny, tunable nanostructures and low-voltage electrical control. This discovery is published in Advanced Materials ("Electrically tunable and modulated perovskite quantum emitters via surface-enhanced Landau damping").
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