Acta Optica Sinica, Journal Year: 2024, Volume and Issue: 44(15), P. 1513008 - 1513008
Published: Jan. 1, 2024
Small Science, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 15, 2025
Volatile organic compounds (VOCs) are a class of with high vapor pressure and low boiling points, widely present in both natural environments human activities. VOCs released from various sources not only contribute to environmental pollution but also pose threats ecosystems health. Moreover, some considered biomarkers exhaled breath can be utilized identify diseases. Therefore, monitoring controlling VOC emissions concentrations crucial for safeguarding the environment In recent years, significant advancements have been achieved micro‐electromechanical system (MEMS)‐based sensing optical technologies, offering new avenues detection. This article provides comprehensive overview research progress MEMS sensors, focusing on their mechanisms classifications. It then discusses role artificial intelligence enhancing identification quantification, as well trends toward sensor miniaturization intelligence. Furthermore, highlights diverse applications sensors medical diagnostics, agricultural food testing, Internet Things. Finally, it emphasizes opportunities challenges associated providing valuable insights practical applications.
Language: Английский
Citations
1
Applied Physics Reviews, Journal Year: 2024, Volume and Issue: 11(1)
Published: Jan. 31, 2024
Every multi-input multi-output linear optical system can be deemed as a matrix multiplier that carries out desired transformation on the input information, such imaging, modulation, and computing. The strong programmability of has been explored proved to able bring more flexibility greater possibilities applications signal processing general digital analog Furthermore, burgeoning integrated photonics with advanced manufacturing light manipulating technology pave way for large-scale reconfigurable photonic coherent matrix. This paper reviews programmable in platform. First, theoretical basis optimizing methods three types (Mach–Zehnder interferometer mesh, multi-plane diffraction, crossbar array) are introduced. Next, we overview configuring method this their processing, neural network, logic operation, recurrent acceleration, quantum computing comprehensively reviewed. Finally, challenges opportunities discussed.
Language: Английский
Citations
6
Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)
Published: May 22, 2024
Abstract Efficient fiber-chip coupling interfaces are critically important for integrated photonics. Since surface gratings diffract optical signals vertically out of the chip, these couplers can be placed anywhere in circuit allowing wafer-scale testing. While state-of-the-art grating have been developed silicon-on-insulator (SOI) waveguides, moderate index contrast silicon nitride (SiN) presents an outstanding challenge implementing efficient on this platform. Due to reduced strength, a longer structure is required radiate light from chip which produces diffracted field that too wide couple into fiber. In work, we present novel coupler architecture photonic circuits utilizes amorphous (α-Si) overlay. The high refractive α-Si overlay breaks coupler’s vertical symmetry increases directionality. We implement subwavelength metamaterial apodization optimize overlap with fiber Gaussian mode profile. Furthermore, phase beam engineered focalize SMF-28 55 µm above chip. was designed using rigorous three-dimensional (3D) finite-difference time-domain (FDTD) simulations supported by genetic algorithm optimization. Our has footprint 26.8 × 32.7 2 and operates O -band centered at 1.31 μm. It achieves directionality 85% 90% target size 9.2 focal plane. predict peak efficiency − 1.3 dB 1-dB bandwidth 31 nm. α-Si/SiN presented work enables development compact SiN photonics applications including communications, sensing, quantum
Language: Английский
Citations
5
International Journal of Optomechatronics, Journal Year: 2024, Volume and Issue: 18(1)
Published: May 7, 2024
Entering the era of Internet Things (IoT) and fifth-generation (5G) mobile networks, demand for compact, cost-effective, high-performance sensors actuators is skyrocketing. Optical technologies as complements to conventional electrical provide a versatile platform construct widespread applications, showing advantages high data rate, strong multiplexing capability, fast response, low crosstalk, immunity electromagnetic interference. In this paper, we comprehensive review development progress optical sensing actuation technologies. Their applications in detectors, (further divided into physical chemical/biological sensors), communication/computing/imaging are presented. For each category introduced following technology evolution trend from microelectromechanical systems (MEMS) nanophotonics photonic nanosystems. Future directions sensing/actuation also proposed.
Language: Английский
Citations
4
International Journal of Mechanical Sciences, Journal Year: 2024, Volume and Issue: 276, P. 109412 - 109412
Published: May 26, 2024
Language: Английский
Citations
4
Light Science & Applications, Journal Year: 2024, Volume and Issue: 13(1)
Published: Sept. 3, 2024
Abstract Vertical cavity surface emitting lasers (VCSELs) have emerged as a versatile and promising platform for developing advanced integrated photonic devices systems due to their low power consumption, high modulation bandwidth, small footprint, excellent scalability, compatibility with monolithic integration. By combining these unique capabilities of VCSELs the functionalities offered by micro/nano optical structures (e.g. metasurfaces), it enables various energy-efficient compact size, enhanced performance, improved reliability functionality. This review provides comprehensive overview state-of-the-art devices/systems based on VCSELs, including neural networks, vortex beam emitters, holographic devices, deflectors, atomic sensors, biosensors. leveraging open up new opportunities in fields, artificial intelligence, large-capacity communication, imaging, biosensing, so on. Through this review, we aim provide detailed understanding pivotal role played photonics highlight significance advancing field towards efficient, compact, solutions.
Language: Английский
Citations
4
Nanomaterials, Journal Year: 2025, Volume and Issue: 15(1), P. 72 - 72
Published: Jan. 5, 2025
The integration of a photodetector that converts optical signals into electrical is essential for scalable integrated lithium niobate photonics. Two-dimensional materials provide potential high-efficiency on-chip detection capability. Here, we demonstrate an efficient based on few layers MoTe2 thin film waveguide and integrate it with microresonator operating in telecommunication band. lithium-niobate-on-insulator waveguides micro-ring resonator are fabricated using the femtosecond laser photolithography-assisted chemical–mechanical etching method. waveguide-integrated presents absorption coefficient 72% transmission loss 0.27 dB µm−1 at 1550 nm. exhibits responsivity 1 mA W−1 bias voltage 20 V, low dark current 1.6 nA, photo–dark ratio 108 W−1. Due to effective coupling interaction MoTe2, generated photocurrent approximately 160 times higher than free-space light irradiation. Furthermore, wavelength-selective photonic device by integrating quality factor 104 same chip, suggesting applications field spectrometers biosensors.
Language: Английский
Citations
0
Optical Materials, Journal Year: 2025, Volume and Issue: unknown, P. 116686 - 116686
Published: Jan. 1, 2025
Language: Английский
Citations
0
Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)
Published: Feb. 15, 2025
Language: Английский
Citations
0
Sensors and Actuators A Physical, Journal Year: 2025, Volume and Issue: 387, P. 116357 - 116357
Published: Feb. 28, 2025
Language: Английский
Citations
0