Results 81 to 90 of about 526,651 (246)

Solid immersion lens applications for nanophotonic devices [PDF]

, 2008
Solid immersion lens (SIL) microscopy combines the advantages of conventional microscopy with those of near-field techniques, and is being increasingly adopted across a diverse range of technologies and applications. A comprehensive overview of the state-
O'Connor, John A., Reid, Derryck T.; id_orcid, Serrels, Keith A., Dalgarno, P.A., Ramsay, E., Reid, D.T., Warburton, R.J., Hadfield, R.H., Warburton, Richard J., Ramsay, Euan, Hadfield, Robert H., Gerardot, B., Serrels, K.A., Dalgarno, Paul A.; id_orcid, O'Connor, J., Gerardot, Brian D.   +15 more
core   +1 more source

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

Advanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja, Mikko Kokkonen, Niina Halonen, Sami Myllymäki, Umair Rafique, Mandeep Singh, Ossi Laitinen, Heli Jantunen, Kristiina Oksman, Henrikki Liimatainen   +9 more
wiley   +1 more source

Visual performance after the implantation of a new trifocal intraocular lens

Clinical Ophthalmology, 2013
Jérôme C Vryghem,1,2 Steven Heireman1,21Brussels Eye Doctors, Brussels, Belgium; 2Clinique Saint-Jean, Brussels, BelgiumPurpose: To evaluate the subjective and objective visual results after the implantation of a new trifocal diffractive ...
Vryghem JC, Heireman S
doaj  

Design and testing of infrared diffractive telescope imaging optical systems

, 2015
Diffractive telescope is an updated imaging technology, it differs from conventional refractive and reflective imaging system, which is based on the principle of diffraction image.
Kang, FuZeng, Zhang, ZF, Zhang, ZhouFeng, Xie, YongJun, Yin, QinYe   +4 more
core   +1 more source

In Situ Two‐Dimensional Residual Stress Characterization of Thin Films

Advanced Materials Technologies, EarlyView.
An integrated in situ curvature metrology platform combining speckle‐based curvature optical metrology (SCOM) with multi‐beam optical sensors (MOS) enables spatially resolved two‐dimensional curvature mapping of thick sputtered coatings. The SCOM technique provides excellent agreement with MOS while providing an extended measurable curvature range ...
Wai Jue Tan, Wadwan Singhapong, Arindam Majhi, Chris Bowen, Alexander J.G. Lunt, Hongchang Wang, Kawal Sawhney   +6 more
wiley   +1 more source

Design, Analysis, and Manufacturing of Diffractive Achromatic Optical Systems

Micromachines
The increasing resolution requirements of imaging optical systems must be satisfied by expanding the aperture of the optical system according to Rayleigh’s criterion, and larger apertures of conventional refractive/reflective optics place a greater ...
Yidi Zheng, Junfeng Du, Boping Lei, Jiang Bian, Lihua Wang, Bin Fan   +5 more
doaj   +1 more source

Optical performance of a new design of a trifocal intraocular lens based on the Devil's diffractive lens. [PDF]

Biomed Opt Express, 2023
Furlan WD, Martínez-Espert A, Montagud-Martínez D, Ferrando V, García-Delpech S, Monsoriu JA.   +5 more
europepmc   +1 more source

Upscaling Pulsed Laser Fragmentation in Liquids by Advanced Free‐Flow Setups

Advanced Materials Technologies, EarlyView.
Advanced flow setups providing thin colloid films are introduced to upscale pulsed laser fragmentation in liquids for sustainable nanoparticle synthesis. Their potential is demonstrated by yielding remarkably small ZnO nanoparticles of <7 nm. Numerical simulations complement the study, revealing that the superior performance can be attributed to ...
Jan Lino Kricke, Zongwen Fu, Sebastian Burgmann, Uwe Janoske, Carlos Doñate‐Buendía, Bilal Gökce   +5 more
wiley   +1 more source

Diffractive Hard Scattering

, 1999
Diffraction is an old subject which has received much interest in recent years due to the advent of diffractive hard scattering. We discuss some theoretical models and experimental results that have shown new striking effects, e.g.
Diffractive Hard Scattering, Gunnar Ingelman   +1 more
core  

Diffractive infrared lens with extended depth of focus

, 2007
An infrared imaging lens that produces beams with long focal depth while preserving the entire aperture for full light capturing and high transverse resolution is presented.
Yang, Jame J, Liu, Zhiqiang, Wang, Michael R, Flores, Angel   +3 more
core   +1 more source