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arXiv · 1510.01887

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

R. Buividas·I. Aharonovich·G. Seniutinas·X. W. Wang·L. Rapp·A. V. Rode·T. Taniguchi·S. Juodkazis
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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.

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R. Buividas, I. Aharonovich, G. Seniutinas, X. W. Wang, L. Rapp, A. V. Rode, T. Taniguchi, S. Juodkazis. 2015-10-07. Photoluminescence from voids created by femtosecond laser pulses inside cubic-BN. https://doi.org/10.1364/ol.40.005711

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