Results 31 to 40 of about 4,020,412 (320)

Random Raman Fiber Laser as a Liquid Refractive Index Sensor

Photonic Sensors, 2023
In this paper, a new concept of forward-pumped random Raman fiber laser (RRFL)-based liquid refractive index sensing is proposed for the first time.
Bing Han, Yuxi Ma, Han Wu, Yong Zhao
doaj   +1 more source

Study of a silica glass SiO2-Na2O refractive index to fabrication of fiber optic with Brewster method

Journal of Physics: Theories and Applications, 2019
One of the critical parameters in the fabrication of fiber optic is refractive index value from the fiber optic material. That is because the main requirement phase of critical angle on the fiber optic waveguide is a core refractive index higher than the
Ahmad Aftah Syukron, Isnaini Lilis Elviyanti   +1 more
doaj   +1 more source

A refractive index sensor based on the leaky radiation of a microfiber [PDF]

Optics Express 22, 12645 (2014), 2014
In this work we present a refractive index sensor based on the leaky radiation of a microfiber. The 5.3um diameter microfiber is fabricated by drawing a commercial optical fiber. When the microfiber is immersed into a liquid with larger refractive index than the effective index of fiber mode, the light will leak out through the leaky radiation process.
arxiv   +1 more source

Optical Kerr nonlinearity of disordered all-dielectric resonant high index metasurfaces with negative refraction [PDF]

JETP Letters, 2020, Vol. 111, No. 1, pp. 36-40, 2019
The optical Kerr effect of material with negative refraction is estimated for the first time. This is done via three-dimensional finite-difference time-domain (FDTD) simulations of disordered bidisperse metasurfaces consisting of high index (GaP) spheres at the wavelength of 532~nm.
arxiv   +1 more source

A tunable refractive index matching medium for live imaging cells, tissues and model organisms

eLife, 2017
In light microscopy, refractive index mismatches between media and sample cause spherical aberrations that often limit penetration depth and resolution.
Tobias Boothe, Lennart Hilbert, M. Heide, Lea Berninger, W. Huttner, V. Zaburdaev, N. Vastenhouw, E. Myers, D. Drechsel, J. Rink   +9 more
semanticscholar   +1 more source

Targeting the MDM2‐MDM4 interaction interface reveals an otherwise therapeutically active wild‐type p53 in colorectal cancer

Molecular Oncology, EarlyView.
This study investigates an alternative approach to reactivating the oncosuppressor p53 in cancer. A short peptide targeting the association of the two p53 inhibitors, MDM2 and MDM4, induces an otherwise therapeutically active p53 with unique features that promote cell death and potentially reduce toxicity towards proliferating nontumor cells.
Sonia Valentini, Giada Mele, Marika Attili, Maria Rita Assenza, Fulvio Saccoccia, Francesca Sardina, Cinzia Rinaldo, Roberto Massari, Nicola Tirelli, Alfredo Pontecorvi, Fabiola Moretti   +10 more
wiley   +1 more source

Palm Cooking Oil Refraction Index Measurement Using Single Slit Fraunhofer Diffraction Method

Jurnal Ilmu Dasar, 2015
Palm cooking oil refraction index measurement has been done in several temperature using single slit Fraunhofer diffraction method. Ratio between diffraction patterns at the air dan solution medium can be used to determine its refraction index.
Supriyadi Supriyadi, Misto Misto, Yulia Hartanti   +2 more
doaj   +1 more source

Understanding and measuring mechanical signals in the tumor stroma

FEBS Open Bio, EarlyView.
This review discusses cancer‐associated fibroblast subtypes and their functions, particularly in relation to extracellular matrix production, as well as the development of 3D models to study tumor stroma mechanics in vitro. Several quantitative techniques to measure tissue mechanical properties are also described, to emphasize the diagnostic and ...
Fàtima de la Jara Ortiz, Chiara Cimmino, Maurizio Ventre, Alessandra Cambi   +3 more
wiley   +1 more source

Influence of Refractive Index to Plasmonic Interferometric Imaging

IEEE Photonics Journal, 2021
Plasmonic interferometric imaging has been widely used for fast and label-free detection to nano-objects, which associates the interference between launched and scattered surface plasmon polaritons (SPPs).
Chang Wang, Xuqing Sun, Ruxue Wei, Xue Wang, Hongyao Liu, Xiaojuan Sun, Fei Wang, Xinchao Lu, Chengjun Huang   +8 more
doaj   +1 more source

Negative refraction and left-handed behavior in two-dimensional photonic crystals [PDF]

Phys. Rev. B 67, 235107 (2003)., 2002
We systematically examine the conditions of obtaining left-handed (LH) behavior in photonic crystals. Detailed studies of the phase and group velocities as well as the phase np and group ng refractive index are given. The existence of negative refraction does not guarantee the existence of negative index of refraction and so LH behavior.
arxiv   +1 more source