New inter-Rydberg transitions of NO revealed by the laser induced amplified spontaneous emission

摘要

Amplified spontaneous emission (ASE) from single rotational levels of Rydberg states, 4p sigma M (2) Sigma(+), 4p pi K (2) Pi, 5s sigma S (2) Sigma(+), 4d sigma O (2) Sigma(+), 4d pi O' (2) Pi, 5p sigma R (2) Sigma(+), and 5p pi Q (2) Pi of NO molecules has been investigated through optical-optical double resonance excitation via the A (2) Sigma(+) state. Several new inter-Rydberg transitions were identified in the midinfrared region. The rotational structure in dispersed ASE spectra was resolved completely, which provided detailed information on cascading radiative relaxation processes among Rydberg states. (C) 1998 American Institute of Physics. [S0021-9606(98)02603-8]. [References: 31]