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The schematic cross section of the dye laser chip.
The fabrication process of the evanescent dye optofluidic laser.
The SEM image of the circular grating at tilt angle of 30°.
(a) The close-view of experimental set-up. (b) A typical laser emission spectrum above threshold and the input-output relationship (c).
(a) The lasing wavelength vs the refractive index of the dye solution. The square dots represent the experimental data and the line indicates the simulation result. (b) The emission spectra of evanescent optofluidic dye laser of different grating periods.
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