A5066099877- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Analytical Chemistry and Sensors
- Advanced Fiber Laser Technologies
- Gas Sensing Nanomaterials and Sensors
- Advanced Sensor and Energy Harvesting Materials
- Advanced MEMS and NEMS Technologies
- Mechanical and Optical Resonators
- Optical Network Technologies
- Nanoplatforms for cancer theranostics
- Photonic Crystal and Fiber Optics
- Photoacoustic and Ultrasonic Imaging
- Nonlinear Optical Materials Studies
- Advanced Photonic Communication Systems
- High voltage insulation and dielectric phenomena
- Polydiacetylene-based materials and applications
- Spectroscopy and Laser Applications
- Semiconductor Lasers and Optical Devices
Shenzhen Technology University
2023-2025
An all-polymer microcavity fiber acoustic sensor and its applications in partial discharge (PD) detection for power equipment are proposed demonstrated. The adopts a sandwiched structure comprising sensing film, polymer cover, ferrule. Due to with lower Young's modulus small size, it shows maximum frequency response within 68 Hz 524 kHz, has high sensitivity of 20.99 V/Pa at 25 kHz the minimum detectable sound pressure level, 34.1 μPa/Hz1/2. In addition, exhibits flat signal-to-noise ratio...
A novel and compact fiber-optic gas pressure sensor using a chitosan-coated twin-core side hole fiber (TCSHF)-based structure is presented. This comprises single-mode (SMF), coreless (CLF), TCSHF connected in series. The center core (CC) of the (SH) with chitosan coating form Michelson interferometer (MI), while (SC) forms Fabry–Pérot (FPI). By leveraging hybrid within segment, second harmonic Vernier effect (HVE) generated. For first time, internal envelope demodulation method practically...
A flexible single-mode polymer optical fiber (SMPOF) based modal interferometer for high-sensitivity wrist bending measurement is presented. The SMPOF fabricated by cyclo-olefin (COP) material via the preform-to-fiber drawing technology. section of sandwiched between two standard silica fibers (SMF) ultraviolet-cured resin (UV Resin), which constructs sensor. As applies to SMPOF, wavelength and interference depth are modulated simultaneously. Experimental results show that within curvature...
A polymer/SiO2 hybrid waveguide micro-ring filter based on a short carbon nanotube (CNT) nano-film is presented. The coated the top surface of polymer waveguide, and both serve as core device. film can effectively improve coherent depth quality factor values filter. Due to excellent light absorption characteristic large thermo-optic effect CNT nano-film, shows good all-optical tunable performance. Experimental results show that its wavelength tuning efficiency reaches -0.030 nm/mW, it 1.67...
An ultrahigh sensitivity wideband ultrasonic sensor with an all-polymer spring optomechanical microresonator is presented using two-photon polymerization fabrication technology. The structure based on pentaerythritol tetraacrylate. Its maximum size only 80 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\mu$</tex-math></inline-formula> m, which characterized by miniaturization and rapid manufacturing. A...
An all-polymer spring optomechanical microresonator based ultrasonic sensor is presented. The an structure with a micro-disk and cylindrical waveguide microcavity. Experiment results show that its sensitivity 987.8 times of the commercial acoustic at 200KHz, frequency response range within 50KHz-400KHz. It shows advantages smart structure, high sensitivity, wideband response, it expected to have wide applications in grid, biomedicine medical ultrasound imaging.
A fast response relative humidity (RH) sensor with a fiber tip pentaerythritol tetraacrylate (PETA) based all-polymer microcavity is presented. The microcavity, maximum size of 99.27µm, consists circular truncated cone on the end surface and manufactured by photopolymerization PETA using two-photon polymerization technology, which characterized miniaturization rapid manufacturing. Experimental results show that its RH sensitivity reaches 104.74 pm/%RH in range 14.7-84.3%RH lower hysteresis...
A pentaerythritol tetraacrylate (PETA) based all-polymer microcavity sensor for high performance relative humidity (RH) detection is presented. The fiber tip microcavity, with a maximum size of 99.27µm, consists circular truncated cone on the end surface and manufactured by photopolymerization PETA using two-photon polymerization technology, which characterized miniaturization rapid manufacturing. Experimental results show that its RH sensitivity reaches 108.05 pm/%RH in range 14.7-84.3 %RH....
A short carbon nanotubes (CNTs) nano-film based polymer/SiO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> hybrid waveguide on-chip micro-ring filter is presented. The film can effectively improve the coherent depth and quality factor of filter. shows good all-optical controllable performance due to excellent thermo-optic effect CNTs nano-film. Since chip advantages small size, compact structure, control, it expected have practical...
A fast response relative humidity (RH) sensor with a fiber tip pentaerythritol tetraacrylate (PETA) based all-polymer microcavity is presented. The microcavity, maximum size of $99.27 \mu \mathrm{m}$, consists circular truncated cone on the end surface and manufactured by photopolymerization PETA using two-photon polymerization technology, which characterized miniaturization rapid manufacturing. It promising candidate for potential applications in chemical, medical biological fields related...