Zobrazeno 1 - 10
of 10
pro vyhledávání: '"785"'
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:
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
Autor:
Sander N. Dorenbos, Julien Zichi, Johannes W. N. Los, Ronan Gourgues, Gabriele Bulgarini, Nima Kalhor, Val Zwiller, Jin Chang, Iman Esmaeil Zadeh
Publikováno v:
Optics Express, 27(17)
We experimentally investigate the performance of NbTiN superconducting nanowire single photon detectors above the base temperature of a conventional Gifford-McMahon cryocooler (2.5 K). By tailoring design and thickness (8 - 13 nm) of the detectors, h
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
Publikováno v:
OPTICS EXPRESS
A hybrid integration of nanoplasmonic antennas with silicon nitride waveguides enables miniaturized chips for surface-enhanced Raman spectroscopy at visible and near-infrared wavelengths. This integration can result in high-throughput SERS assays on
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.
The two major challenges in Raman spectroscopy are the low intensity of spontaneous Raman scattering and often accompanying luminescence. We overcome these two issues with a novel fiber-dispersive Raman spectrometer utilizing pulsed excitation and a
Publikováno v:
Optics Express.
We demonstrate orbital-angular momentum (OAM) light up to a topological charge of l=3 behind a single mode fiber. Femtosecond 3D direct laser writing is used to fabricate spiral phase plates of l=1,2 and 3, composed of 10 discrete steps, on the tip o