Details

Autor(en) / Beteiligte

• Lipatov, E.I.
• Genin, D.E.
• Shulepov, M.A.
• Tel’minov, E.N.
• Savvin, A.D.
• Eliseev, A.P.
• Vins, V.G.

Titel

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

Ist Teil von

• Quantum electronics (Woodbury, N.Y.), 2022-05, Vol.52 (5), p.465-312

Ort / Verlag

Bristol: Kvantovaya Elektronika, Turpion Ltd and IOP Publishing

Erscheinungsjahr

2022

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Abstract Superluminescence of NV centres with a band peaking at λ = 718 nm in the phonon wing of the photoluminescence spectrum of a high-pressure high-temperature (HPHT) diamond sample under pulsed optical excitation at λ = 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 λ = 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).