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Использование микродисковых лазеров с квантовыми точками InAs/InGaAs для биодетектирования

Фетисова М., Корнев А., Букатин А., Филатов Н., Елисеев И., Крыжановская Н. В., Редуто И., Моисеев Э. И., Максимов М. В., Жуков А. Е.

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.