Narrowband Bragg filters based on subwavelength grating waveguides for silicon photonic sensing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F20%3A00539264" target="_blank" >RIV/67985882:_____/20:00539264 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1364/OE.404364" target="_blank" >https://doi.org/10.1364/OE.404364</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OE.404364" target="_blank" >10.1364/OE.404364</a>
Alternative languages
Result language
angličtina
Original language name
Narrowband Bragg filters based on subwavelength grating waveguides for silicon photonic sensing
Original language description
Subwavelength grating (SWG) waveguides have been shown to provide enhanced light-matter interaction resulting in superior sensitivity in integrated photonics sensors. Narrowband integrated optical filters can be made by combining SWG waveguides with evanescently coupled Bragg gratings. In this paper, we assess the sensing capabilities of this novel filtering component with rigorous electromagnetic simulations. Our design is optimized for an operating wavelength of 1310 nm to benefit from lower water absorption and achieve narrower bandwidths than at the conventional wavelength of 1550 nm. Results show that the sensor achieves a sensitivity of 507 nm/RIU and a quality factor of 4.9 x 10(4), over a large dynamic range circumventing the free spectral range limit of conventional devices. Furthermore, the intrinsic limit of detection, 5.1 x 10(-5) RIU constitutes a 10-fold enhancement compared to state-of-the-art resonant waveguide sensors
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
<a href="/en/project/GA19-00062S" target="_blank" >GA19-00062S: Advanced functionalities in subwavelength photonic and plasmonic structures</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Optics Express
ISSN
1094-4087
e-ISSN
—
Volume of the periodical
28
Issue of the periodical within the volume
25
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
37971-37985
UT code for WoS article
000596707100071
EID of the result in the Scopus database
2-s2.0-85097333288