Imperial College London
Alternate

ProfessorMarkOxborrow

Faculty of Engineering, Department of Materials

Professor in Functional Microwave Materials
 
 
 
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Contact

 

+44 (0)20 7594 1410m.oxborrow

 
 
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Location

 

2.04Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Breeze:2015:10.1038/ncomms7215,
author = {Breeze, J and Tan, K-J and Richards, B and Sathian, J and Oxborrow, M and Alford, NM},
doi = {10.1038/ncomms7215},
journal = {Nature Communications},
pages = {1--6},
title = {Enhanced magnetic Purcell effect in room-temperature masers},
url = {http://dx.doi.org/10.1038/ncomms7215},
volume = {6},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Recently, the world’s first room-temperature maser was demonstrated. The maser consisted of a sapphire ring housing a crystal of pentacene-doped p-terphenyl, pumped by a pulsed rhodamine-dye laser. Stimulated emission of microwaves was aided by the high quality factor and small magnetic mode volume of the maser cavity yet the peak optical pumping power was 1.4 kW. Here we report dramatic miniaturization and 2 orders of magnitude reduction in optical pumping power for a room-temperature maser by coupling a strontium titanate resonator with the spin-polarized population inversion provided by triplet states in an optically excited pentacene-doped p-terphenyl crystal. We observe maser emission in a thimble-sized resonator using a xenon flash lamp as an optical pump source with peak optical power of 70 W. This is a significant step towards the goal of continuous maser operation.
AU  - Breeze,J
AU  - Tan,K-J
AU  - Richards,B
AU  - Sathian,J
AU  - Oxborrow,M
AU  - Alford,NM
DO  - 10.1038/ncomms7215
EP  - 6
PY  - 2015///
SN  - 2041-1723
SP  - 1
TI  - Enhanced magnetic Purcell effect in room-temperature masers
T2  - Nature Communications
UR  - http://dx.doi.org/10.1038/ncomms7215
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000350201100024&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.nature.com/articles/ncomms7215
UR  - http://hdl.handle.net/10044/1/19973
VL  - 6
ER  -
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