Photoluminescence from voids created by femtosecond-laser pulses inside cubic-BN
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2015-12-03 |
| Journal | Optics Letters |
| Authors | R. Buividas, I. Aharonovich, G. Seniutinas, X. W. Wang, L. Rapp |
| Institutions | University of Technology Sydney, National Institute for Materials Science |
| Citations | 30 |
Abstract
Section titled āAbstractāPhotoluminescence (PL) from femtosecond-laser-modified regions inside cubic-boron nitride (c-BN) was measured under UV and visible light excitation. Bright PL at the red spectral range was observed, with a typical excited state lifetime of ā¼4 ns. Sharp emission lines are consistent with PL of intrinsic vibronic defects linked to the nitrogen vacancy formation (via Frenkel pair) observed earlier in high-energy electron-irradiated and ion-implanted c-BN. These, formerly known as the radiation centers, RC1, RC2, and RC3, have been identified at the locus of the voids formed by a single femtosecond-laser pulse. The method is promising to engineer color centers in c-BN for photonic applications.