We present a coherent-population-trapping-based scheme to attain subnanoscale resolution for microscopy. We use three-level atoms coupled to an amplitude modulated probe field and a spatially dependent (standing-wave or Laguerre–Gaussian) coupling field. The probe field modulation allows us to tap into the steep dispersion normally associated with electromagnetically induced transparency and offers subnanometer resolution using optical fields.
© 2010 Optical Society of America
Original Manuscript: March 17, 2010
Revised Manuscript: June 30, 2010
Manuscript Accepted: July 10, 2010
Published: August 13, 2010
K. T. Kapale and G. S. Agarwal, "Subnanoscale resolution for microscopy via coherent population trapping," Opt. Lett. 35, 2792-2794 (2010)