| Autor: |
García-Puente Y, Kashyap R |
| Jazyk: |
angličtina |
| Zdroj: |
Optics express [Opt Express] 2022 Dec 19; Vol. 30 (26), pp. 47720-47732. |
| DOI: |
10.1364/OE.480395 |
| Abstrakt: |
This work considers a perfect 3D omnidirectional photonic crystal; Spherical Bragg Resonators (SBR), for lasing applications. We use the recursive transfer matrix method to study scattering in an Er 3+ doped SBR. We find the threshold gain factor for lasing by scanning poles and zeros of the S-matrix in the complex frequency plane. For a six Si/SiO 2 bilayer SBR, the threshold gain factor corresponds to a dopant density of Er 3+ of 5.63 × 10 20 ions/cm 3 . We believe, our work is the first theoretical demonstration of the ability to engineer optical amplification and threshold gain for lasing in SBRs. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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