comb laser spectroscopy with ultrashort pulses. We simultaneously measured two species of atoms whose wavelengths separate as wide as 40 nm, with which the comb laser based quantum-interfered spectra (Dips) was first perceived.
Comb clock directly referencing to atomic transition
Optics Letters 48, 2421 (2023)
T. -W. Liu, B. W. Chen, H. –H. Yu and W. –Y. Cheng*
High-resolution Cs-Rb two-photon spectrometer for directly stabilizing Ti:sapphire comb laser
超短脈衝光梳雷射直接與銫銣原子交互作用，做成光鐘。等於用一台寬頻雷射建立十萬個光鐘並有目前文獻所知最高解析光梳光譜。為日後6G通訊所需之太空計量學重要進展。
100 thousand optical clocks were simultaneously developed with one femtosecond frequency comb laser. The direct comb spectroscopy for laser stabilization has the best resolution in literature . Our compact scheme is the first step toward to build up the space-borne metrology for next 6G scenario.