The Use of Microdisk Lasers Based on InAs/InGaAs Quantum Dots in Biodetection


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Abstract

It is demonstrated that microdisk lasers about 10 μm 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.

About the authors

M. V. Fetisova

St. Petersburg National Research Academic University, Russian Academy of Sciences; University of Eastern Finland

Author for correspondence.
Email: fetmarina57@gmail.com
Russian Federation, St. Petersburg, 194021; Joensuu

A. A. Kornev

St. Petersburg National Research Academic University, Russian Academy of Sciences

Email: fetmarina57@gmail.com
Russian Federation, St. Petersburg, 194021

A. S. Bukatin

St. Petersburg National Research Academic University, Russian Academy of Sciences

Email: fetmarina57@gmail.com
Russian Federation, St. Petersburg, 194021

N. A. Filatov

St. Petersburg National Research Academic University, Russian Academy of Sciences

Email: fetmarina57@gmail.com
Russian Federation, St. Petersburg, 194021

I. E. Eliseev

St. Petersburg National Research Academic University, Russian Academy of Sciences

Email: fetmarina57@gmail.com
Russian Federation, St. Petersburg, 194021

N. V. Kryzhanovskaya

St. Petersburg National Research Academic University, Russian Academy of Sciences; Peter the Great St. Petersburg Polytechnic University

Email: fetmarina57@gmail.com
Russian Federation, St. Petersburg, 194021; St. Petersburg, 195251

I. V. Reduto

St. Petersburg National Research Academic University, Russian Academy of Sciences; Peter the Great St. Petersburg Polytechnic University; University of Eastern Finland

Email: fetmarina57@gmail.com
Russian Federation, St. Petersburg, 194021; St. Petersburg, 195251; Joensuu

E. I. Moiseev

St. Petersburg National Research Academic University, Russian Academy of Sciences

Email: fetmarina57@gmail.com
Russian Federation, St. Petersburg, 194021

M. V. Maximov

St. Petersburg National Research Academic University, Russian Academy of Sciences; Ioffe Institute, Russian Academy of Sciences

Email: fetmarina57@gmail.com
Russian Federation, St. Petersburg, 194021; St. Petersburg, 194021

A. E. Zhukov

St. Petersburg National Research Academic University, Russian Academy of Sciences; Peter the Great St. Petersburg Polytechnic University

Email: fetmarina57@gmail.com
Russian Federation, St. Petersburg, 194021; St. Petersburg, 195251

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