Prospects in rare-gas hydride ions for terahertz frequency standards

M Kajita, N Kimura - Journal of Physics B: Atomic, Molecular and …, 2020 - iopscience.iop.org
M Kajita, N Kimura
Journal of Physics B: Atomic, Molecular and Optical Physics, 2020iopscience.iop.org
A proposal is given to use the ${X}^{1}{\Sigma}\left (v, J, F\right)=\left (0, 0, 1/2\right)-\left (0,
1, 1/2\right) $ transition of the HeH+(2.0 THz), NeH+(1.0 THz), and ArH+(0.62 THz)
molecular ions as novel frequency standards in the terahertz region. This transition is free
from the electric-quadrupole shift, and the DC Stark and Zeeman shifts are much less than
those of the CaH+ and MgH+ molecular ions. These transitions are useful for locking the
frequencies of oscillators like quantum cascade lasers (QCL) or resonant tunnel diodes …
Abstract
A proposal is given to use the transition of the HeH+(2.0 THz), NeH+(1.0 THz), and ArH+(0.62 THz) molecular ions as novel frequency standards in the terahertz region. This transition is free from the electric-quadrupole shift, and the DC Stark and Zeeman shifts are much less than those of the CaH+ and MgH+ molecular ions. These transitions are useful for locking the frequencies of oscillators like quantum cascade lasers (QCL) or resonant tunnel diodes (RTD) with uncertainties of 10− 15.
iopscience.iop.org
Showing the best result for this search. See all results