Room-temperature quasi-continuous-wave pentacene maser pumped by an invasive Ce:YAG luminescent concentrator
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
We present in this work a quasi-continuous-wave (cw) pentacene maser operating at 1.45 GHz in the Earth’s magnetic field at room temperature with a duration of approximately 4 ms and an output power of up to
−
25
dBm. The maser is optically pumped by a cerium-doped yttrium-aluminum-garnet (YAG) (
Ce
:
YAG
) luminescent concentrator (LC), the wedge-shaped output of which is embedded inside a 0.1% pentacene-doped para-terphenyl (Pc:Ptp) crystal. The pumped crystal is located inside a ring of strontium titanate (STO) that supports a
TE
01
δ
mode of high magnetic Purcell factor. Combined with simulations, our results indicate that cw operation of pentacene masers at room temperature is perfectly feasible so long as excessive heating of the crystal is avoided.
−
25
dBm. The maser is optically pumped by a cerium-doped yttrium-aluminum-garnet (YAG) (
Ce
:
YAG
) luminescent concentrator (LC), the wedge-shaped output of which is embedded inside a 0.1% pentacene-doped para-terphenyl (Pc:Ptp) crystal. The pumped crystal is located inside a ring of strontium titanate (STO) that supports a
TE
01
δ
mode of high magnetic Purcell factor. Combined with simulations, our results indicate that cw operation of pentacene masers at room temperature is perfectly feasible so long as excessive heating of the crystal is avoided.
Date Issued
2020-12-04
Date Acceptance
2020-11-12
Citation
Physical Review Applied, 2020, 14 (6), pp.064017 – 1-064017 – 10
ISSN
2331-7019
Publisher
American Physical Society
Start Page
064017 – 1
End Page
064017 – 10
Journal / Book Title
Physical Review Applied
Volume
14
Issue
6
Copyright Statement
© 2020 American Physical Society
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (EPSRC)
Identifier
https://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.14.064017
Grant Number
EP/K037390/1
EP/M020398/1
Subjects
physics.app-ph
physics.app-ph
cond-mat.mtrl-sci
physics.optics
quant-ph
02 Physical Sciences
09 Engineering
Publication Status
Published
Article Number
064017
Date Publish Online
2020-12-04