Zobrazeno 1 - 10
of 21
pro vyhledávání: '"785"'
Publikováno v:
Optics Express. 24:12281
MoS2 films are grown on SiO2/Si substrates by chemical vapor deposition. The vibrational properties of optical phonons of mono-, bi- and multilayer MoS2 are studied by Raman scattering spectroscopy over temperature range from 90 to 540 K with 514.5 n
Publikováno v:
Optics express. 29(16)
In this paper, a surface-enhanced Raman scattering (SERS) sensor with a giant field enhancement factor based on the coupling of surface plasmon polaritons (SPPs) is designed and studied theoretically. The proposed sensor adopts a metal-dielectric lay
Publikováno v:
Optics express. 29(8)
A novel radius of the curvature measurement method for optical spherical surfaces using absolute interferometry is proposed. A measurement setup is designed and built around a common-path Fizeau interferometer. The cavity length (volume of air betwee
Autor:
Narcisa Nechita, Cosmin Farcau
Publikováno v:
Optics Express. 29:42238
The overall optical response (transmittance, reflectance, and absorbance) of metal film over nanospheres (MFoN) is studied for a wide range of sphere diameters (200 - 1000 nm) and metal film thicknesses (40–200 nm), over the 450 - 2000 nm spectral
Autor:
Ni Yao, Limin Tong, Zhen Wang, Heqing Wang, Xiaoming Xie, Weijun Zhang, Hao Li, Xiao-Yu Liu, Wei Fang, Lixing You, Yong Wang, Hou Xintong
Publikováno v:
Optics express. 27(18)
Broadband photon detectors are a key enabling technology for various applications such as spectrometers, light detection and ranging. In this work, we report on an ultra-broadband single-photon detector based on a microfiber (MF)-coupled superconduct
Publikováno v:
Optics Express. 28:37226
We report a new design optimization process for planar photonic waveguides applied to waveguide-enhanced Raman spectroscopy (WERS) that combines the optimization of both the surface intensity performance and the grating coupling efficiency. We consid
Autor:
Jing Deng, Yan Ge, Jinhui Li, Lin Zixiong, Dai Shutao, Huagang Liu, Jianhong Huang, Wenxiong Lin, Haizhou Huang
Publikováno v:
Optics express. 26(5)
We demonstrate an enhancement mechanism and thermal model for intra-cavity pumped lasers, where resonance enhancement in intra-cavity pumped Ho laser was achieved by manipulating the wavelength-drift nature of the Tm laser for the first time. Optical
Autor:
Gyllion Brian Loozen, Jacob Caro
Publikováno v:
Optics Express, 26(21)
The application of on-chip optical trapping and Raman spectroscopy using a dual-waveguide trap has so far been limited to relatively big synthetic and biological particles (e.g., polystyrene beads and blood cells). Here, from simulations, we present
Publikováno v:
Optics Express. 25:10434
We demonstrated real-time control of micro/nanofiber waist diameter during fiber pulling process with ultrahigh accuracy and precision. A 785 nm CW laser was coupled into SMF-28e fiber to excite high-order modes. During the fiber-pulling process, the
Publikováno v:
Optics express. 22(9)
This study theoretically investigates the wavelength-dependent longitudinal polarizability of a gold nanorod (GNR) irradiated by a polarized laser beam. The resultant optical torque in terms of the Maxwell stress tensor was analyzed quantitatively us