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 ∼ 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.

Engineering and Localization of Quantum Emitters in Large Hexagonal Boron Nitride Layers

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Tipping solutions: emerging 3D nano-fabrication/ -imaging technologies

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Luminescent Erbium‐Doped Silicon Thin Films for Advanced Anti‐Counterfeit Labels

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