Results 231 to 240 of about 26,576 (254)
Some of the next articles are maybe not open access.
Femtosecond Microfabrication of Subwavelength Photonic Structures
2006 European Conference on Optical Communications, 2006The fabrication of sub-micron photonic structures beyond diffraction limit is demonstrated by means of tightly focused laser pulses. 25 mm long periodic structure with a pitch size of 260 nm is experimentally produced. Detailed numerical modelling is performed to establish mechanisms of such inscription.
Vladimir Mezentsev +3 more
openaire +1 more source
Optical Elements with Subwavelength Structured Surfaces
Optical Review, 2003Various optical elements with subwavelength structured surfaces have been developed. The periods of the subwavelength structures are too short to generate diffracted light waves. But the structures are equivalent to refractive index materials with form birefringence.
Hisao Kikuta, Hiroshi Toyota, Wanji Yu
openaire +1 more source
Reflective waveplate with subwavelength grating structure
Japanese Journal of Applied Physics, 2015A reflective waveplate with subwavelength grating structure of the photoresist was fabricated using two-beam interference technology. From the optical measurement, it is found that the phase retardation of the fabricated reflective element (period: 400 nm, fill factor: 0.5, depth: 280 nm) was almost the same as that of the transmission waveplate with ...
Itsunari Yamada +2 more
openaire +1 more source
Optical elements with subwavelength structured surfaces
SPIE Proceedings, 2004Various optical elements with subwavelength structured surfaces have been developed. The periods of the subwavelength structures are too short to generate diffracted light waves. But the structures are equivalent to refractive index materials with form birefringence.
Hisao Kikuta +4 more
openaire +1 more source
Subwavelength-structured antireflective surfaces on glass
Thin Solid Films, 1999Abstract The usability of porous sol–gel coatings and periodic or stochastic subwavelength surface-relief structures for low-cost broadband antireflective (AR) surfaces on glass and on plastics was studied experimentally. Porous sol–gel coatings were produced by dip-coating on glass.
A. Gombert +8 more
openaire +1 more source
Subwavelength structures for polarization manupulation
2011In dieser Arbeit wird die Entwicklung von Subwellenlängenstrukturen für die Polarisationsmanipulation des Licht im sichtbaren Bereich untersucht. Die Erzeugung von radial polarisiertem Licht wird als die Hauptanwendung angesehen. Weiterhin werden sie zur Gestaltung eines polarisatorarrays für die Shearing-Interferometrie eingesetzt.
openaire +1 more source
Super Black Material from Low-Density Carbon Aerogels with Subwavelength Structures
ACS Nano, 2016Wei Sun, Ai Du, Bin Zhou
exaly