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Optimal parameters of monolithic high-contrast grating mirrors

Magdalena Marciniak ; Marcin Gębski ; Maciej Dems ; Erik Haglund (Institutionen för mikroteknologi och nanovetenskap, Fotonik) ; Anders Larsson (Institutionen för mikroteknologi och nanovetenskap, Fotonik) ; Majid Riaziat ; James A. Lott ; Tomasz Czyszanowski
Optics Letters (0146-9592). Vol. 41 (2016), 15, p. 3495-3498.
[Artikel, refereegranskad vetenskaplig]

In this Letter a fully vectorial numerical model is used to search for the construction parameters of monolithic high-contrast grating (MHCG) mirrors providing maximal power reflectance. We determine the design parameters of highly reflecting MHCG mirrors where the etching depth of the stripes is less than two wavelengths in free space. We analyze MHCGs in a broad range of real refractive index values corresponding to most of the common optoelectronic materials in use today. Our results comprise a complete image of possible highly reflecting MHCG mirror constructions for potential use in optoelectronic devices and systems. We support the numerical analysis by experimental verification of the high reflectance via a GaAs MHCG designed for a wavelength of 980 nm.

Nyckelord: Diffraction gratings,Subwavelength structures, Vertical cavity surface emitting lasers

Denna post skapades 2016-07-27. Senast ändrad 2016-09-28.
CPL Pubid: 239527


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