State Grid Examination Microdisk

What is laser emission behavior of a microdisk pair under spatial gain variation?

Laser emission behavior of a microdisk pair under spatial gain variation a False-color contour plot of the emission intensity vs. wavelength and relative distance, Δ Dp , between the center of the pair to the center of the beam spot, as the pair is shifted through the pump beam spot, which is schematically illustrated on the left.

What is the beam size of a microdisk?

The beam size was set with an iris to 50 μm in diameter. The LUMERICAL FDTD software package was used to simulate mode coupling between microdisks of diameters of D = 26 μm. The refractive index was set to n = 1.9 and a WGM at 630 nm (in vacuum) was simulated.

How are QD microdisks made?

After the development, the film was rinsed with water and dried by blowing with air. The QD microdisks were fabricated by spin casting butylamine-capped QD solution (in heptane) of ~3–6 mg/mL at 1000 rpm for 1 min onto the polymer pattern.

Where do localized Parasitic modes originate in a non Hermitian multimode system?

By spatial variation of gain and loss in the coupled microcavity pairs, we show that the removal of the localized parasitic modes originates from their coalescence at an EP of the non-Hermitian multi-mode system.

Who performed microfabrication of single and coupled microdisk lasers?

Microfabrication of single and coupled microdisk lasers was done by C.H.L. Characterization measurements including optical microscope, AFM and SEM were performed by M.J.S. and S.T.M. Optical characterization measurements were designed and performed by E.L. and Q.Z. E.L. analyzed the data, performed eigenvalue calculations, and wrote the manuscript.