Measurement of deep-subwavelength emitter separation in a waveguide-QED system.
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In the waveguide quantum electrodynamics (QED) system, emitter separation plays an important role for its functionality. Here, we present a method to measure the deep-subwavelength emitter separation in a waveguide-QED system. In this method, we can also determine the number of emitters within one diffraction-limited spot. In addition, we also show that ultrasmall emitter separation change can be detected in this system which may then be used as a waveguide-QED-based sensor to measure tiny local temperature/strain variation.
author list (cited authors)
Liao, Z., Al-Amri, M., & Zubairy, M. S
complete list of authors
Liao, Zeyang||Al-Amri, M||Zubairy, M Suhail