Superluminescence in the phonon wing of the photoluminescence spectrum of NV centres in diamond optically pumped at λ = 532 nm

Superluminescence in the phonon wing of the photoluminescence spectrum of NV centres in diamond optically pumped at λ = 532 nm

Superluminescence of NV centres with a band peaking at lambda = 718 nm in the phonon wing of the photoluminescence spectrum of a high-pressure high-temperature (HPHT) diamond sample under pulsed optical excitation at lambda = 532 nm with an intensity of 2 - 46 MW cm(-2) is demonstrated. Superlumines...

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Bibliographic Details
Published in:Quantum electronics Vol. 52, № 5. P. 465-468
Other Authors: Lipatov, Evgeniy I., Genin, Dmitrii E., Shulepov, Mikhail A., Telminov, Evgenii N., Savvin, Alexander D., Eliseev, Aleksander P., Vins, Viktor G.
Format: Article
Language:English
Subjects:
сверхлюминесценция
фотолюминесценция
оптическая накачка
алмазы
лазеры
NV-центры
статьи в журналах
Online Access:http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001001430
Description
Summary:Superluminescence of NV centres with a band peaking at lambda = 718 nm in the phonon wing of the photoluminescence spectrum of a high-pressure high-temperature (HPHT) diamond sample under pulsed optical excitation at lambda = 532 nm with an intensity of 2 - 46 MW cm(-2) is demonstrated. Superluminescence is observed in the diamond crystal region containing 6 ppm NV centres and 150 ppm substituent nitrogen; it is absent in the crystal part with a lower nitrogen content. Superluminescence pulses are observed on the leading edge of the optical excitation pulse at lambda = 532 nm and have an FWHM value of 4 ns. The enhancement of the photoluminescence of NV centres is suggested to be due to the total internal reflection in the diamond plate (waveguide effect).
Bibliography:Библиогр.: 10 назв.
ISSN:1063-7818

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