Photoluminescence from voids created by femtosecond laser pulses inside cubic-BN

Abstract

Photoluminescence (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 $\sim 4$~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 single fs-laser pulse. The method is promising to engineer color centers in c-BN for photonic applications.

arXiv comment4 figures

References in corpus (2)

• Diamond Nanophotonics
• Optical Properties of BN in the cubic and in the layered hexagonal phases

Cited by in corpus (6)

• Laser writing of individual atomic defects in a crystal with near-unity yield
• Femtosecond Laser Writing of Spin Defects in Hexagonal Boron Nitride
• Femtosecond laser micromachining for integrated quantum photonics
• Low charge-noise nitrogen-vacancy centers in diamond created using laser writing with a solid-immersion lens
• Cubic BN optical gap and intragap optically active defects
• Optical spin defect pairs in cubic boron nitride