Abstract

Numerical analysis of two-dimensional GaAs photonic crystal nanocavities on glass shows that a thin upper glass film suppresses TE-TM mode conversion and enhances the cavity Q factor. The work compares cavity loss versus glass-film thickness, identifies a maximum Q near 260 nm upper-film thickness, and attributes the improvement to reduced upper radiation and mode mismatch with the loaded glass film.

Abstract

Numerical analysis of two-dimensional GaAs photonic crystal nanocavities on glass shows that a thin upper glass film suppresses TE-TM mode conversion and enhances the cavity Q factor. The work compares cavity loss versus glass-film thickness, identifies a maximum Q near 260 nm upper-film thickness, and attributes the improvement to reduced upper radiation and mode mismatch with the loaded glass film.

Abstract

Numerical analysis of two-dimensional GaAs photonic crystal nanocavities on glass shows that a thin upper glass film suppresses TE-TM mode conversion and enhances the cavity Q factor. The work compares cavity loss versus glass-film thickness, identifies a maximum Q near 260 nm upper-film thickness, and attributes the improvement to reduced upper radiation and mode mismatch with the loaded glass film.

Abstract

Numerical analysis of two-dimensional GaAs photonic crystal nanocavities on glass shows that a thin upper glass film suppresses TE-TM mode conversion and enhances the cavity Q factor. The work compares cavity loss versus glass-film thickness, identifies a maximum Q near 260 nm upper-film thickness, and attributes the improvement to reduced upper radiation and mode mismatch with the loaded glass film.