Team:TU Delft/Model/Q3

iGEM TU Delft

Modeling

Q3: Can we determine the limit fluorophore concentration and limit size when taking into account the kinetics and dynamics of photons inside a biolaser cavity?

Introduction

In order to get lasing cells we encapsulate E.coli in polysilica or tin dioxide and we use fluorophores as a gain medium. In Q1 we already determined the minimal size in order to fit one wavelength of light inside the cells when the light resonates in whispering gallery modes. In this section we determine the lasing threshold. Therefore we take losses due to the mirrors and absorption and the gain due to stimulated emission into account. We will determine here what the minimal size and the minimal concentration of fluorophores is to get lasing.

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