Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/19429
Title: Photonic-on-a-chip: a thermal actuated Mach-Zehnder interferometer and a molecular thermometer based on a single di-ureasil organic-inorganic hybrid
Author: Ferreira, Rute A. S.
Brites, Carlos D. S.
Vicente, Carlos M. S.
Lima, Patricia P.
Bastos, Ana R. N.
Marques, Paulo G.
Hiltunen, Marianne
Carlos, Luis D.
Andre, Paulo S.
Keywords: OPTICAL WAVE-GUIDES
THERMOOPTICAL COEFFICIENTS
TEMPERATURE
TECHNOLOGY
POLYMERS
DEVICES
PLANAR
FILMS
FABRICATION
ATTENUATOR
Issue Date: 2013
Publisher: WILEY-V C H VERLAG GMBH
Abstract: An integrated photonic-on-a-chip device based on a single organic-inorganic di-ureasil hybrid was fabricated for optical waveguide and temperature sensing. The device is composed by a thermal actuated Mach-Zehnder (MZ) interferometer operating with a switching power of 0.011 W and a maximum temperature difference between branches of 0.89 oC. The MZ interferometer is covered by a Eu3+/Tb3+ co-doped di-ureasil luminescent molecular thermometer with a temperature uncertainty of 0.1oC and a spatial resolution of 13 mu m. This is an uncommon example in which the same material (an organic-inorganic hybrid) that is used to fabricate a particular device (a thermal-actuated MZ interferometer) is also used to measure one of the device intrinsic properties (the operating temperature). The photonic-on-a-chip example discussed here can be applied to sense temperature gradients with high resolution (10(-3) oC mu m(-1)) in chip-scale heat engines or refrigerators, magnetic nanocontacts and energy-harvesting machines.
Peer review: yes
URI: http://hdl.handle.net/10773/19429
DOI: 10.1002/lpor.201300080
ISSN: 1863-8880
Publisher Version: 10.1002/lpor.201300080
Appears in Collections:CICECO - Artigos



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