Characterizations of two-photon absorption process induced by defects in aluminum nitride using Z-scan method
Journal Article
·
· Semiconductor Science and Technology
Abstract In this work, we reported two-photon absorption (TPA) measurements for aluminum vacancies in Aluminum nitride single crystals. We measured the linear transmission and identified the defect levels. Using the Z-scan method, we measured the TPA coefficients of the transitions between defect levels from 380 nm to 735 nm. The transition occurs between the aluminum vacancies defect levels. Furthermore, the power dependence shows good linear fitting, confirming the TPA mechanism. These results will be helpful for the design and fabrication of ultra-low loss waveguides and integrated photonics in the ultraviolet spectral range.
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- SC0021230
- OSTI ID:
- 2369699
- Alternate ID(s):
- OSTI ID: 2352765
- Journal Information:
- Semiconductor Science and Technology, Journal Name: Semiconductor Science and Technology Vol. 39 Journal Issue: 7; ISSN 0268-1242
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United Kingdom
- Language:
- English
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