Abstract

Ultrafast heating of photoionized free electrons by high-numerical-aperture (0.25–0.65) focused visible-range ultrashort laser pulses provides their resonant impact trapping into intra-gap electronic states of point defect centers in a natural IaA/B diamond with a high concentration of poorly aggregated nitrogen impurity atoms. This excites fine-structured, broadband (UV-near-infrared) polychromatic luminescence of the centers over the entire bandgap. The observed luminescence spectra revealed substitutional nitrogen interaction with non-equilibrium intrinsic carbon vacancies, produced simultaneously as Frenkel “vacancy-interstitial” pairs during the laser exposure.

© 2021 Optical Society of America

Deep diamond single-photon sources prepared by a femtosecond laser

Si Gao, Zhen-Nan Tian, Pei Yu, Hao-Yu Sun, Hua Fan, Qi-Dai Chen, and Hong-Bo Sun
Opt. Lett. 46(17) 4386-4389 (2021)

Integrated waveguides and deterministically positioned nitrogen vacancy centers in diamond created by femtosecond laser writing

J. P. Hadden, V. Bharadwaj, B. Sotillo, S. Rampini, R. Osellame, J. D. Witmer, H. Jayakumar, T. T. Fernandez, A. Chiappini, C. Armellini, M. Ferrari, R. Ramponi, P. E. Barclay, and S. M. Eaton
Opt. Lett. 43(15) 3586-3589 (2018)

Photo-physical characteristics of color N3-center in diamond studied via UV femtosecond-laser pumped luminescence

Sergey Kudryashov, Pavel Danilov, Nikita Smirnov, Petr Pakholchuk, Mikhail Skorikov, Igor Smetanin, Pham Hong Minh, and Pham Van Duong
Opt. Lett. 49(1) 137-140 (2024)

Bright near-surface silicon vacancy centers in diamond fabricated by femtosecond laser ablation

Youying Rong, Ke Cheng, Zhiping Ju, Chengda Pan, Qiang Ma, Shikang Liu, Si Shen, Botao Wu, and Tianqing Jia
Opt. Lett. 44(15) 3793-3796 (2019)

Plasmon-enhanced sensitivity of spin-based sensors based on a diamond ensemble of nitrogen vacancy color centers

Hao Guo, Yulei Chen, Dajin Wu, Rui Zhao, Jun Tang, Zongmin Ma, Chenyang Xue, Wendong Zhang, and Jun Liu
Opt. Lett. 42(3) 403-406 (2017)