Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Olav Gaute Hellesø"'
Autor:
Mathias N. Jensen, Eduarda M. Guerreiro, Agustin Enciso-Martinez, Sergei G. Kruglik, Cees Otto, Omri Snir, Benjamin Ricaud, Olav Gaute Hellesø
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract Extracellular vesicles (EVs) released from cells attract interest for their possible role in health and diseases. The detection and characterization of EVs is challenging due to the lack of specialized methodologies. Raman spectroscopy, howe
Externí odkaz:
https://doaj.org/article/d5d91ec3f07b4140a5568628e73af16f
Autor:
Md Rabiul Hasan, Olav Gaute Hellesø
Publikováno v:
ACS Applied Optical Materials. 1:832-842
Publikováno v:
CrystEngComm. 23:4648-4657
Laser scanning is investigated to measure the deflection of the crystal–melt interface during Czochralski-growth of silicon. A mid-infrared laser is used to take advantage of the IR-transparency of silicon. The method is tested at room temperature
Autor:
Md Rabiul Hasan, Olav Gaute Hellesø
Publikováno v:
Optics Express. 31:6782
Optical trapping combined with Raman spectroscopy have opened new possibilities for analyzing biological nanoparticles. Conventional optical tweezers have proven successful for trapping of a single or a few particles. However, the method is slow and
Autor:
Olav Gaute Hellesø, Rabiul Hasan
Nanophotonics allows the manipulation of light on the subwavelength scale. Optical nanoantennas are nanoscale elements that enable increased resolution in bioimaging, novel photon sources, solar cells with higher absorption, and the detection of fluo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06531a1670a96fd117d89312e952909c
https://hdl.handle.net/10037/24663
https://hdl.handle.net/10037/24663
Autor:
Balpreet Singh Ahluwalia, Jean-Claude Tinguely, Olav Gaute Hellesø, Marcel Lahrberg, Firehun Tsige Dullo, Øystein Ivar Helle
Structured illumination microscopy (SIM) enables live cell, super-resolution imaging at high speeds. SIM uses sophisticated optical systems to generate pre-determined excitation light patterns, and reconstruction algorithms to enhance the resolution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dd78dee9e073d21f16f472d295e7756
Publikováno v:
IEEE Photonics Technology Letters. 28:1205-1208
The temperature sensitivity of a waveguide Young interferometer is investigated experimentally and using numerical simulations. With different materials on the two arms of the interferometer, the output phase is linear with temperature, making the de
Publikováno v:
IEEE Photonics Journal. 7:1-11
The single-mode limit and bending losses for shallow rib waveguides are studied using the full vectorial film mode matching method. The maximum rib height for single-mode waveguides is found to be on the order of 10 nm for a rib width of 2 μm and a
Publikováno v:
IEEE Photonics Technology Letters. 26:1836-1839
The dependence of propagation losses on waveguide width and polarization is measured for strip and rib waveguides made of tantalum pentoxide. For strip waveguides, the propagation losses are found to increase rapidly for widths