M. V. Fetisova, A. A. Kornev, A. S. Bukatin, N. A. Filatov, I. E. Eliseev, N. V. Kryzhanovskaya, I. V. Reduto, È. I. Moiseev, M. V. Maksimov, A. E. Zhukov, “The use of microdisk lasers based on InAs/InGaAs quantum dots in biodetection”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2019, Volume 45, Issue 23,Pages <nobr>10

This article is cited in 3 papers

The use of microdisk lasers based on InAs/InGaAs quantum dots in biodetection

M. V. Fetisova^a, A. A. Kornev^a, A. S. Bukatin^a, N. A. Filatov^a, I. E. Eliseev^a, N. V. Kryzhanovskaya^ab, I. V. Reduto^acb, È. I. Moiseev^a, M. V. Maksimov^ad, A. E. Zhukov^ab

^a Alferov Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, St. Petersburg
^b Peter the Great St. Petersburg Polytechnic University
^c University of Eastern Finland, Joensuu, Finland
^d Ioffe Institute, St. Petersburg

Abstract: It is demonstrated that microdisk lasers about 10 $\mu$m in diameter with an active region based on InAs/InGaAs quantum dots synthesized on GaAs substrates can be used for biodetection. Chimeric monoclonal antibodies against the CD20 protein that are covalently attached to the surface of microdisk lasers operating in an aqueous medium under optical pumping and room temperature were used as detectable objects. It is shown that the addition of secondary antibodies leads to an increase in the threshold power of laser generation, as well as to an increase in the full width at half maximum (FWHM) of the resonance laser line.

Keywords: biosensor, semiconductor laser, microdisk laser, quantum dots, photoluminescence.

Received: 19.07.2019
Revised: 19.07.2019
Accepted: 19.08.2019

DOI: 10.21883/PJTF.2019.23.48711.17994n