Laser & Optoelectronics Progress, Год журнала: 2024, Номер 61(19), С. 1913003 - 1913003
Опубликована: Янв. 1, 2024
Micromachines, Год журнала: 2024, Номер 15(12), С. 1434 - 1434
Опубликована: Ноя. 28, 2024
In this work, we propose a novel suspended slot membrane waveguide (SSMW) utilizing germanium-on-silicon-on-insulator (Ge-on-SOI) platform for carbon dioxide (CO2) gas-sensing applications. The design and analysis focus on the absorption line of CO2 in mid-infrared region, specifically at wavelength 4.23 µm. geometry has been precisely optimized to achieve high evanescent field ratio (EFR) minimize propagation losses. These optimizations significantly enhance sensitivity waveguide, making it highly effective absorption-based gas sensing. Our demonstrates notable EFR 0.86, with low loss just 1.07 dB/cm, achieves as ~1.12 × 10−4 ppm−1 SSMW lengths short 0.9 cm.
Язык: Английский
Процитировано
2
Journal of Optics, Год журнала: 2024, Номер 26(10), С. 102501 - 102501
Опубликована: Авг. 29, 2024
Abstract This paper presents a comparative analysis of the conventional Mach–Zehnder interferometer (MZI) configuration and loop-terminated MZI (LT-MZI) configuration, emphasizing their respective advantages utilization in sensing applications. The MZI, renowned for its simplicity versatility, is contrasted with LT-MZI, which incorporates loop termination to enhance sensitivity spectral performance. Through detailed examination design principles, operational mechanisms, performance metrics, it shown that LT-MZI offers superior improved interference pattern control, making particularly suitable high-precision perspective provides valuable insights into selection optimization configurations specific photonic needs.
Язык: Английский
Процитировано
0
Journal of Optics, Год журнала: 2024, Номер 26(12), С. 125403 - 125403
Опубликована: Окт. 29, 2024
Abstract
Whispering
gallery
mode
(WGM)
resonators
with
high
optical
quality
factor
(
Q
)
are
sensitive
to
environment
changes
and
used
in
various
sensing
applications.
We
have
developed
a
high-precision
temperature
sensor
using
compactly
packaged
lithium
niobate
WGM
resonator.
This
offers
sensitivity
of
34.38
pm
°C
−1
resolution
up
Язык: Английский
Процитировано
0
Journal of Physics Photonics, Год журнала: 2024, Номер 7(1), С. 015004 - 015004
Опубликована: Ноя. 15, 2024
Abstract We introduce and analyze a lithographically defined cavity (Li-cavity) incorporating buried mesa defect in planar vertical structure, which induces transverse photonic confinement while enabling compatibility with electrical injection. systematically investigate the influence of key parameters on optical behavior fundamental properties using comprehensive three-dimensional model. Our analysis reveals that Li-cavity exhibits low scattering, resulting high Q Purcell factors, even at sub-wavelength dimensions. Furthermore, supports single-mode operation within broader aperture size range compared to conventional designs, promising enhanced power emission. Adequately designed structures demonstrate superior factors wavelength-scale sizes, outperforming micropillar cavities. These improved customizable device characteristics stem from simple fabrication process precisely controls size, shape, mode. Superior characteristics, along its adaptability diverse materials, wavelengths, integration platforms, promise broad applications potential adaptation this design devices.
Язык: Английский
Процитировано
0
Laser & Optoelectronics Progress, Год журнала: 2024, Номер 61(19), С. 1913003 - 1913003
Опубликована: Янв. 1, 2024
Процитировано
0