Abstract：
:A novel III-Nitride digital alloy (DA) with ultra-broadband optical gain is proposed. Numerical analysis shows a 50-period InN/GaN DA yields minibands that are densely quantized by numerous confined states. Interband transitions between the conduction and valence minibands create ultra-broadband optical gain spectra with bandwidths up to ~1 μm that can be tuned from the red to infrared. In addition, the ultra-broadband optical gain, bandwidth, and spectral coverage of the III-Nitride DA is very sensitive to layer thickness and other structural design parameters. This study shows the promising potential of the III-Nitride DAs with tunable ultra-broadband interband optical gain for use in semiconductor optical amplifiers and future III-Nitride photonic integration applications.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Sun W,Tan CK,Wierer JJ Jr,Tansu Ndoi
10.1038/s41598-018-21434-6subject
Has Abstractpub_date
2018-02-15 00:00:00pages
3109issue
1issn
2045-2322pii
10.1038/s41598-018-21434-6journal_volume
8pub_type
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