Results 41 to 50 of about 640,184 (358)

Single and dual fiber nano-tip optical tweezers: trapping and analysis

, 2013
An original optical tweezers using one or two chemically etched fiber nano-tips is developed. We demonstrate optical trapping of 1 micrometer polystyrene spheres at optical powers down to 2 mW.
Decombe, Jean-Baptiste, Fick, Jochen, Huant, Serge   +2 more
core   +3 more sources

Analysis of Dynamical Characteristic of Piecewise-Nonlinear Asymmetric Hysteretic System Based on Incremental Harmonic Balance Method

Discrete Dynamics in Nature and Society, 2015
Considering a sort of elastic mass with asymmetric hysteresis characteristic which widespread existing in engineering field, a piecewise-nonlinear dynamical equation, which contains asymmetric hysteretic loop, is established.
H. R. Liu, J. Z. Li, D. X. Hou, R. R. Yin, J. S. Jiang   +4 more
doaj   +1 more source

Fiber distributed feedback laser [PDF]

, 1976
Utilizing round optical fibers as communication channels in optical communication networks presents the problem of obtaining a high efficiency coupling between the optical fiber and the laser. A laser is made an integral part of the optical fiber channel
Elachi, C., Evans, G. A., Yeh, C.
core   +1 more source

Analysis of the applicability of singlemode optical fibers for measurement of deformation with distributed systems BOTDR [PDF]

, 2016
Distributed optical fiber sensors allow monitoring physical effects across the whole cable. The paper presents results obtained from the performed tests and shows that single mode fibers can provide analyses of the deformation changes, when distributed ...
Bednárek, Lukáš, Fajkus, Marcel, Frnda, Jaroslav, Nedoma, Jan, Vašinek, Vladimír   +4 more
core   +2 more sources

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

Resonance-enhanced all-optical modulation of WSe2-based micro-resonator

Nanophotonics, 2019
Two-dimensional material tungsten diselenide (WSe2) nanosheets are coated on a microfibre knot resonator (MKR) to achieve an all-optical power modulation functionality.
Zhang Zijian, Chen Guowei, Yang Mingyu, Ou Yunyao, Luo Luqi, Lu Dongqin, Zhang Enze, Guan Heyuan, Lu Huihui, Zhu Wenguo, Yu Jianhui, Dong Jiangli, Qiu Wentao, Chen Zhe, Peng Gangding   +14 more
doaj   +1 more source

KLK7 overexpression promotes an aggressive phenotype and facilitates peritoneal dissemination in colorectal cancer cells

FEBS Open Bio, EarlyView.
KLK7, a tissue kallikrein‐related peptidase, is elevated in advanced colorectal cancer and associated with shorter survival. High KLK7 levels in ascites correlate with peritoneal metastasis. In mice, KLK7 overexpression increases metastasis. In vitro, KLK7 enhances cancer cell proliferation, migration, adhesion, and spheroid formation, driving ...
Yosr Z. Haffani, Tobias Dreyer, Meriem Naim, Rea Lo Dico, Natalia A. Ignatenko, Viktor Magdolen, Dalila Darmoul   +6 more
wiley   +1 more source

Short cavity DFB fiber laser based vector hydrophone for low frequency signal detection

Photonic Sensors, 2017
A short cavity distributed feedback (DFB) fiber laser is used for low frequency acoustic signal detection. Three DFB fiber lasers with different central wavelengths are chained together to make three-element vector hydrophone with proper sensitivity ...
Xiaolei Zhang, Faxiang Zhang, Shaodong Jiang, Li Min, Ming Li, Gangding Peng, Jiasheng Ni, Chang Wang   +7 more
doaj   +1 more source

Method of making conical fiber optical components [PDF]

, 1969
Improved method for producing fused-fiber optical components is described. These components have a frustro-conical shape and provide high-quality light transmission with high resolution capabilities.
Balkwill, J. T., Capellaro, D. F.
core   +1 more source

All fiber polarization insensitive detection for spectrometer based optical coherence tomography using optical switch

, 2019
Polarization dependent image artifacts are common in optical coherence tomography imaging. Polarization insensitive detection scheme for swept source based optical coherence tomography systems is well established but is yet to be demonstrated for all ...
Otuya, D., Sharma, G., Singh, K., Tearney, G.   +3 more
core   +1 more source