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Bogdanov AA, Mukhin IS, Kryzhanovskaya NV, et al. Mode selection in InAs quantum dot microdisk lasers using focused ion beam technique. Opt Lett. 2015;40(17):4022-5doi: 10.1364/OL.40.004022.
Bogdanov, A. A., Mukhin, I. S., Kryzhanovskaya, N. V., Maximov, M. V., Sadrieva, Z. F., Kulagina, M. M., Zadiranov, Y. M., Lipovskii, A. A., Moiseev, E. I., Kudashova, Y. V., & Zhukov, A. E. (2015). Mode selection in InAs quantum dot microdisk lasers using focused ion beam technique. Optics letters, 40(17), 4022-5. https://doi.org/10.1364/OL.40.004022
Bogdanov, A A, et al. "Mode selection in InAs quantum dot microdisk lasers using focused ion beam technique." Optics letters vol. 40,17 (2015): 4022-5. doi: https://doi.org/10.1364/OL.40.004022
Bogdanov AA, Mukhin IS, Kryzhanovskaya NV, Maximov MV, Sadrieva ZF, Kulagina MM, Zadiranov YM, Lipovskii AA, Moiseev EI, Kudashova YV, Zhukov AE. Mode selection in InAs quantum dot microdisk lasers using focused ion beam technique. Opt Lett. 2015 Sep 01;40(17):4022-5. doi: 10.1364/OL.40.004022. PMID: 26368702.
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Opt Lett. 2015 Sep 01;40(17):4022-5. doi: 10.1364/OL.40.004022.

Mode selection in InAs quantum dot microdisk lasers using focused ion beam technique.

Optics letters

A A Bogdanov, I S Mukhin, N V Kryzhanovskaya, M V Maximov, Z F Sadrieva, M M Kulagina, Yu M Zadiranov, A A Lipovskii, E I Moiseev, Yu V Kudashova, A E Zhukov

PMID: 26368702 DOI: 10.1364/OL.40.004022

Abstract

Optically pumped InAs quantum dot microdisk lasers with grooves etched on their surface by a focused ion beam are studied. It is shown that the radial grooves, depending on their length, suppress the lasing of specific radial modes of the microdisk. Total suppression of all radial modes, except for the fundamental radial one, is also demonstrated. The comparison of laser spectra measured at 78 K before and after ion beam etching for a microdisk of 8 μm in diameter shows a sixfold increase of mode spacing, from 2.5 to 15.5 nm, without a significant decrease of the dominant mode quality factor. Numerical simulations are in good agreement with experimental results.

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