Optical Properties of Bulk Single-Crystal Diamonds at 80–1200 K by Vibrational Spectroscopic Methods
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2021-12-03 |
| Journal | Materials |
| Authors | Zitao Shi, Qilong Yuan, Yuezhong Wang, Kazuhito Nishimura, Guo‐Jian Yang |
| Institutions | University of Chinese Academy of Sciences, University of Nottingham Ningbo China |
| Citations | 19 |
| Analysis | Full AI Review Included |
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Bulk diamonds show great potential for optical applications such as for use in infrared (IR) windows and temperature sensors. The development of optical-grade bulk diamond synthesis techniques has facilitated its extreme applications. Here, two kinds of bulk single-crystal diamonds, a high-pressure and high-temperature (HPHT) diamond and a chemical vapor deposition (CVD) diamond, were evaluated by Raman spectroscopy and Fourier Transform Infra-Red (FTIR) spectroscopy at a range of temperatures from 80 to 1200 K. The results showed that there was no obvious difference between the HPHT diamond and the CVD diamond in terms of XRD and Raman spectroscopy at 300-1200 K. The measured nitrogen content was ~270 and ~0.89 ppm for the HPHT diamond and the CVD diamond, respectively. The moderate nitrogen impurities did not significantly affect the temperature dependence of Raman spectra for temperature-sensing applications. However, the nitrogen impurities greatly influence FTIR spectroscopy and optical transmittance. The CVD diamond showed higher transmittance, up to 71% with only a ~6% drop at temperatures as high as 873 K. This study shows that CVD bulk diamonds can be used for IR windows under harsh environments.
Tech Support
Section titled “Tech Support”Original Source
Section titled “Original Source”References
Section titled “References”- 2013 - Growth of large size diamond single crystals by plasma assisted chemical vapour deposition: Recent achievements and remaining challenges [Crossref]
- 2021 - Towards high-quality nitrogen-doped diamond single crystals for X-ray optics [Crossref]
- 2019 - Extreme diamond-based quantum sensors [Crossref]
- 2015 - Temperature dependence of the Raman line width in diamond: Revisited [Crossref]
- 1989 - Characterization of crystalline quality of diamond films by Raman spectroscopy [Crossref]
- 1983 - Anharmonic effects in light scattering due to optical phonons in silicon [Crossref]
- 1941 - Temperature variation of the Raman frequency of diamond [Crossref]
- 1991 - First-order Raman spectrum of diamond at high temperatures [Crossref]
- 1965 - Raman scattering from crystals of the diamond structure [Crossref]