Photodynamics of quantum emitters in hexagonal boron nitride revealed by low-temperature spectroscopy
- Resource Type
- Authors
- Niko Nikolay; Bernd Sontheimer; Merle Braun; Oliver Benson; Igor Aharonovich; Nikola Sadzak
- Source
- Physical Review B. 96
- Subject
- Photon
Materials science
Photoluminescence
FOS: Physical sciences
Applied Physics (physics.app-ph)
02 engineering and technology
01 natural sciences
symbols.namesake
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
0103 physical sciences
010306 general physics
Spectroscopy
Quantum
Common emitter
Quantum Physics
Condensed Matter - Mesoscale and Nanoscale Physics
business.industry
Physics - Applied Physics
021001 nanoscience & nanotechnology
3. Good health
Fourier transform
symbols
Physics::Accelerator Physics
Optoelectronics
Atomic physics
Quantum Physics (quant-ph)
0210 nano-technology
business
Ultrashort pulse
Optics (physics.optics)
Physics - Optics
Coherence (physics)
- Language
- ISSN
- 2469-9969
2469-9950
Quantum emitters in hexagonal boron nitride (hBN) have recently emerged as promising bright single photon sources. In this letter we investigate in details their optical properties at cryogenic temperatures. In particular, we perform temperature resolved photoluminescence studies and measure photon coherence times from the hBN emitters. The obtained value of 81(1) ps translates to a width of $\sim$12 GHz which is higher than the Fourier transform limited value of $\sim$32 MHz. To account for the photodynamics of the emitter, we perform ultrafast spectral diffusion measurements that partially account for the coherence times. Our results provide important insight into the relaxation processes in quantum emitters in hBN which is mandatory to evaluate their applicability for quantum information processing.
5 pages, 4 figures