Optical determination of the Boltzmann constant*
Cheng Cun-Feng, Sun Y. R., Hu Shui-Ming†
       
Configuration of the CRDS instrument for optical determination of k B. Abbreviations: AOM, acousto–optical modulator; EOM, electro–optical modulator; F–P filter, Fabry–Pérot filter; PBS, polarized beam splitter; PD, photo–detector; PZT, lead zirconate titanate piezoelectric actuator; ULE–FPI, Fabry–Pérot interferometer made of ultra-low-expansion glass.