TY - JOUR
T1 - Room-temperature spontaneous superradiance from single diamond nanocrystals
AU - Bradac, Carlo
AU - Johnsson, Mattias T.
AU - Breugel, Matthew van
AU - Baragiola, Ben Q.
AU - Martin, Rochelle
AU - Juan, Mathieu L.
AU - Brennen, Gavin K.
AU - Volz, Thomas
N1 - Copyright the Author(s) 2017. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.
PY - 2017/10/31
Y1 - 2017/10/31
N2 - Superradiance (SR) is a cooperative phenomenon which occurs when an ensemble of quantum emitters couples collectively to a mode of the electromagnetic field as a single, massive dipole that radiates photons at an enhanced rate. Previous studies on solid-state systems either reported SR from sizeable crystals with at least one spatial dimension much larger than the wavelength of the light and/or only close to liquid-helium temperatures. Here, we report the observation of room-temperature superradiance from single, highly luminescent diamond nanocrystals with spatial dimensions much smaller than the wavelength of light, and each containing a large number (~ 103) of embedded nitrogen-vacancy (NV) centres. The results pave the way towards a systematic study of SR in a well-controlled, solid-state quantum system at room temperature.
AB - Superradiance (SR) is a cooperative phenomenon which occurs when an ensemble of quantum emitters couples collectively to a mode of the electromagnetic field as a single, massive dipole that radiates photons at an enhanced rate. Previous studies on solid-state systems either reported SR from sizeable crystals with at least one spatial dimension much larger than the wavelength of the light and/or only close to liquid-helium temperatures. Here, we report the observation of room-temperature superradiance from single, highly luminescent diamond nanocrystals with spatial dimensions much smaller than the wavelength of light, and each containing a large number (~ 103) of embedded nitrogen-vacancy (NV) centres. The results pave the way towards a systematic study of SR in a well-controlled, solid-state quantum system at room temperature.
UR - http://www.scopus.com/inward/record.url?scp=85032616556&partnerID=8YFLogxK
U2 - 10.1038/s41467-017-01397-4
DO - 10.1038/s41467-017-01397-4
M3 - Article
C2 - 29089492
VL - 8
SP - 1
EP - 6
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 1205
ER -