| Autor: |
Lipatov, E. I., Genin, D. E., Shulepov, M. A., Tel'minov, E. N., Burachenko, A. G., Ripenko, V. S., Savvin, A. D., Dormidonov, A. E., Yelisseyev, A. P., Vins, V. G. |
| Předmět: |
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| Zdroj: |
Russian Physics Journal; Mar2023, Vol. 65 Issue 11, p1881-1885, 5p |
| Abstrakt: |
Photoluminescence spectra of two synthetic diamond samples containing 1−10 ppm nitrogen-vacancy (NV) centers and 100−200 ppm substitutional nitrogen were studied under optical pumping at 532, 560, and 575 nm. At pump intensities less than 0.5−1.0 MW/cm2, a vibronic photoluminescence band of NV centers in the negative charge state was observed. With an increase in the pump intensity above 0.5−1.0 MW/cm2, a superluminescence band was observed on the long-wavelength shoulder of the phonon wing in the range of 700−760 nm. The superluminescence band intensity increased with the pump intensity. It is shown that the position of the superluminescence band with maxima in the range of 715−720 nm remains unchanged at all optical pump wavelengths. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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