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@article{Wu:2020:10.1364/oe.401294,
author = {Wu, H and Mirkhanov, S and Ng, W and Chen, K-C and Xiong, Y and Oxborrow, M},
doi = {10.1364/oe.401294},
journal = {Optics Express},
pages = {29691--29702},
title = {Invasive optical pumping for room-temperature masers, time-resolved EPR, triplet-DNP, and quantum engines exploiting strong coupling},
url = {http://dx.doi.org/10.1364/oe.401294},
volume = {28},
year = {2020}
}

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TY  - JOUR
AB  - We explore an approach for optically pumping a body of optically dense magnetic material. This challenge arises in time-resolved electron paramagnetic resonance (TREPR), triplet-based dynamic nuclear polarisation (DNP), and cavity QED. Crystals of pentacene-doped p-terphenyl were grown around variously shaped ends of optical waveguides, through which pump light could be injected deeply into the crystal. When incorporated into a maser as the gain medium, we found that, compared to conventional side-pumping, 11 times less pump beam intensity was needed to reach the masing threshold and 54 times more pulse energy could be absorbed by the gain medium without damage, resulting in a record peak output power of -5 dBm.
AU  - Wu,H
AU  - Mirkhanov,S
AU  - Ng,W
AU  - Chen,K-C
AU  - Xiong,Y
AU  - Oxborrow,M
DO  - 10.1364/oe.401294
EP  - 29702
PY  - 2020///
SN  - 1094-4087
SP  - 29691
TI  - Invasive optical pumping for room-temperature masers, time-resolved EPR, triplet-DNP, and quantum engines exploiting strong coupling
T2  - Optics Express
UR  - http://dx.doi.org/10.1364/oe.401294
UR  - https://www.osapublishing.org/oe/abstract.cfm?uri=oe-28-20-29691
UR  - http://hdl.handle.net/10044/1/82789
VL  - 28
ER  -

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