A5100764040- Photonic and Optical Devices
- Advanced Fluorescence Microscopy Techniques
- Mechanical and Optical Resonators
- Plasmonic and Surface Plasmon Research
- Advanced Fiber Laser Technologies
- Genetic Associations and Epidemiology
- Advanced Electron Microscopy Techniques and Applications
- Forensic and Genetic Research
- Near-Field Optical Microscopy
- Genetics and Neurodevelopmental Disorders
- Orbital Angular Momentum in Optics
- Photoacoustic and Ultrasonic Imaging
- Molecular Biology Techniques and Applications
- Image Processing Techniques and Applications
- Hair Growth and Disorders
- Optical Coherence Tomography Applications
- Advanced Fiber Optic Sensors
- Metabolism and Genetic Disorders
- Mitochondrial Function and Pathology
- Photonic Crystals and Applications
- Advanced optical system design
- Urological Disorders and Treatments
- Spectroscopy Techniques in Biomedical and Chemical Research
- Tumors and Oncological Cases
- Cancer and Skin Lesions
Second Xiangya Hospital of Central South University
2022
Central South University
2022
Fujian Jiangxia University
2020-2022
Fujian Normal University
2014-2020
Shanghai Skin Disease Hospital
2020
Tongji University
2020
West China Medical Center of Sichuan University
2000-2018
We report a single-mode dye-doped polymer microbottle resonator (MBR) laser. The selective lasing from different order whispering gallery modes is achieved by precisely controlling the axial and radial coupling position between tapered nanofiber an MBR, respectively. side-mode suppression ratio above 20 dB. By doping fluorescence dyes into lasers at various colors are demonstrated.
We demonstrate an approach for the realization of coupled-mode induced transparency (CMIT) in a hybrid polydimethylsiloxane (PDMS)-coated silica microbubble resonator, with Au microwire inserted hollow channel. Owing to large negative thermo-optics coefficient PDMS, different radial order modes opposite thermal sensitivities can coexist this microcavity. By applying current through microwire, which acts as microheater, generated Ohmic heating could thermally tune resonance frequencies and...
A one-dimensional photonic-crystal (PC) cavity with nanoholes is proposed for extreme enhancement of terahertz (THz) electric fields using the electromagnetic (EM) boundary conditions. Both slot (for perpendicular component displacement field) and anti-slot parallel effects contribute to considerable field enhancement. The EM energy density can be enhanced by a factor (εh/εl)2 in high-refractive-index material, where εh εl are permittivities high- low-refractive-index materials,...
Optical microscopy allows us to observe the biological structures and processes within living cells. However, spatial resolution of optical is limited about half wavelength by light diffraction. Structured illumination (SIM), a type new emerging super-resolution microscopy, doubles illuminating specimen with patterned light, sample source requirements SIM are not as strict other microscopy. In addition, easier combine imaging techniques improve their resolution, leading developments diverse...
To compare the cosmetic efficacy of transplantation follicles with intact and non-intact hair bulbs in treatment for vitiligo.The single-hair follicle units un-intact were transplanted into skin vitiligo. The diameters regrowing shafts repigmentation implanted detected analyzed by dermatoscopy (Beining BN-PFMF Skin Hair Visualizer).The survival rates 60.00% 50.62%, respectively. average two groups 92.83 ± 7.26 µm vs 55.86 2.64 (p < .05), 2.62 0.13 mm 2.63 0.17 > respectively.Single was an...
We proposed and theoretically investigated a hybrid plasmonics waveguide consisting of tiptilted quadrate nanowire, which was embedded in low-permittivity dielectric placed on metal substrate with small gap distance. Due to the corner effect, mode extremely local field enhancement has long propagation length strong coupling strength between nanowire metal. By employing simulations different geometric parameters, can obtain better performances than previous waveguide, particularly...
In this study, we design and present a five-fold digital slit-lamp microscope (DSLM) with built-in photographic lens CCD. The initial structures of the front objective, Galilean telescope system, are systematically investigated discussed in design. A progressive optimization process is employed non-coaxial system after coaxial achieves high performance. analysis spot diagrams modulation transfer function (MTF) show that DSLM optical quasi-diffraction-limited performance enables high-quality...
With the rapid development of micro/nano fabrication technology, semiconductor nanowires and nanotubes with size dimensions controllable realize wide applications in nanophotonics. In this talk, we propose two kinds hybrid plasmonics waveguides, one is consisting nanowires, another nanotubes. By employing simulating different geometric parameters, basic waveguiding properties, including effective mode area, propagation length, character optical trapping forces can be achieved. Compared...
Stimulated emission depletion (STED) optical nanoscopy can achieve super-resolution fluorescence imaging, by suppressing on the peripheral of excitation center with a 0-2pi spiral phase plate. Previously, STED intensity distribution at focal plane and derived expression resolution are generally analytical described vectorial integral. To overcome complex multifarious calculation, we proposed scalar integral method used Collins-Huygens to analytically describe peak intensity, central doughnut...
We fabricated a polydimethylsiloxane (PDMS)-coated silica microbubble cavity with rich whispering gallery modes (WGMs). An electromagnetically induced transparency (EIT) window is realized through experimentally coupling tapered fiber the PDMS-coated resonator (MBR). There high-Q mode in vicinity of low-Q transmission spectra. The experimental results prove that performs small redshift while large blueshift when input power increases. This attributes to negative thermo-optical coefficient...
Stimulated emission depletion (STED) microscopy had greatly enhanced our ability to explore the microscopic world, which can provide sub-diffraction resolution. The high resolution of STED depends on shape patterns with center is a null intensity. Optical aberrations were most important factor affects patterns. In this paper, influences modes performance in studied by numerical simulation and experiment using Zernike polynomials. Simulation results show that coma, trefoil, astigmatism...