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High depth of focus by combining annular lenses
(Elsevier Science, 2006-12)
In some technological applications, optical systems that produce a high depth of focus and superresolving transversal responses are required. In this paper we present a pupil design consisting in a phase pupil with binary ...
Automatic dynamic depth focusing for NDT
(Institute of Electrical and Electronics Engineers, 2014-05)
Auto-focusing along with dynamic depth focusing (DDF) would be very valuable to inspect arbitrarily shaped parts when operating with wedges or with other coupling media to avoid the burden of computing and setting the ...
Confocal Raman microspectroscopy with dry objectives: A depth profiling study on polymer films
(Elsevier Science, 2007-05)
In this work, we test simple models proposed to predict two characteristic features when performing depth profiling with dry-optics confocal Raman microspectroscopy (CRM): the decay in the collected intensity and the ...
Trade-Off Asymmetric Profile for Extended-Depth-of-Focus Ocular Lens
(Cartagena de Indias, 2022-02-19)
We explore the possibility of extending the depth of focus of an imaging lens with an
asymmetric quartic phase-mask, while keeping the aberration within a relatively low level. This can be intended, for instance, for ...
A report on the 24 August 2011 Mw 7.0 Contamana, Peru, intermediate-depth earthquake
(Seismological Society of America, 2012-11-01)
The seismic activity in Peru has its origin in the convergence process between the Nazca and the South American plates. Such convergence takes place at an average velocity on the order of 7–8 cm/yr (DeMets et al., 1980; ...
An integrated local depth measure
(Springer, 2022-01)
We introduce the Integrated Dual Local Depth, which is a local depth measure for data in a Banach space based on the use of one-dimensional projections. The properties of a depth measure are analyzed under this setting and ...
Global and along-strike variations of source duration and scaling for intermediate-depth and deep-focus earthquakes
The systematic behavior of earthquake rupture as a function of earthquake magnitude and/or tectonic setting is a key in our understanding of the physical mechanisms involved during earthquake rupture. Geophysical evidence ...
Avoiding coupling fluid-sample interaction in confocal Raman depth s profiling with immersion objectives
(Soc Applied Spectroscopy, 2008-07-01)
A strategy based on the use of a protective coating as a separating medium to prevent sample-coupling fluid direct contact when one performs depth profiling by Confocal Raman microspectroscopy (CRM) with immersion objectives ...
Depth of focus increase by multiplexing programmable diffractive lenses
(Optical Society Of America, 2006)
A combination of several diffractive lenses written onto a single programmable liquid crystal display (LCD) is proposed for increasing the Depth of Focus (DOF) of the imaging system as a whole. The lenses are spatially ...