Title :
Ultrafast photo-excitation dynamics of nitrogen-vacancy defects in diamond
Author :
Ulbricht, Ronald ; Shuo Dong ; Schwartz, Julian ; Kim Hyeon-Deuk ; Tanimura, Yoshitaka ; Murali Krishna, M. Bala ; Dani, Keshav M. ; Zhi-Heng Loh
Author_Institution :
Sch. of Phys. & Math. Sci., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
Using transient absorption spectroscopy we investigate the ultrafast dynamics of the electronic excited state of nitrogen-vacancy defects in diamond for temperatures 10K-300K, observing vibrational relaxation times of 40fs and temperature-dependent bi-exponential anisotropy dynamics related to electron motion between the Jahn-Teller-distorted orbitals.
Keywords :
Jahn-Teller effect; diamond; excited states; lattice dynamics; nitrogen; vacancies (crystal); visible spectra; C; Jahn-Teller-distorted orbitals; N; diamond; electron motion; electronic excited state; nitrogen-vacancy defects; temperature 10 K to 300 K; temperature-dependent bi-exponential anisotropy dynamics; transient absorption spectroscopy; ultrafast photoexcitation dynamics; vibrational relaxation times; Anisotropic magnetoresistance; Dynamics; Optical pulses; Optical sensors; Stimulated emission; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
