Liu Guo-Bin, Zhao Feng, Gu Si-Hong
Chin. Phys. B 2009, 18 (9): 3839-3843
This paper studies a miniature low power consumption laser-pumped atom
vapour cell clock scheme. Pumping 87Rb with a vertical cavity
surface emitting laser diode pump and locking the laser frequency on
a Doppler-broadened spectral line, it records a 5× 10-11τ-1/2 (τ 3 volume and 10-12τ -1/2 short-te...
Deng Jin-Xiang, Zhang Xiao-Kang, Yao Qian, Wang Xu-Yang, Chen Guang-Hua, He De-Yan
Chin. Phys. B 2009, 18 (9): 4013-4018
The optical properties of hexagonal boron nitride (h-BN) thin films
were studied in this paper. The films were characterized by Fourier
transform infrared spectroscopy, UV--visible transmittance and
reflection spectra. h-BN thin films with a wide optical band gap
Eg (5.86~eV for the as-deposited fil...