Light-Science & Applications
Papers 1,089
1 page of 109 pages (1,089 results)
#1Jingxi Li (UCLA: University of California, Los Angeles)H-Index: 2
#2Jason GarfinkelH-Index: 1
Last. Yair Rivenson (UCLA: University of California, Los Angeles)H-Index: 35
view all 13 authors...
An invasive biopsy followed by histological staining is the benchmark for pathological diagnosis of skin tumors. The process is cumbersome and time-consuming, often leading to unnecessary biopsies and scars. Emerging noninvasive optical technologies such as reflectance confocal microscopy (RCM) can provide label-free, cellular-level resolution, in vivo images of skin without performing a biopsy. Although RCM is a useful diagnostic tool, it requires specialized training because the acquired image...
#1Binbin Wang (Université Paris-Saclay)
#2Emilie Sakat (Université Paris-Saclay)H-Index: 12
Last. Nicolas Pauc (UGA: University of Grenoble)H-Index: 20
view all 17 authors...
GeSn alloys are promising materials for CMOS-compatible mid-infrared lasers manufacturing. Indeed, Sn alloying and tensile strain can transform them into direct bandgap semiconductors. This growing laser technology however suffers from a number of limitations, such as poor optical confinement, lack of strain, thermal, and defects management, all of which are poorly discussed in the literature. Herein, a specific GeSn-on-insulator (GeSnOI) stack using stressor layers as dielectric optical claddin...
#1Miguel Alexandre (NOVA: Universidade Nova de Lisboa)H-Index: 4
#2Hugo Águas (NOVA: Universidade Nova de Lisboa)H-Index: 30
Last. Manuel J. Mendes (NOVA: Universidade Nova de Lisboa)H-Index: 26
view all 5 authors...
Insightful knowledge on quantum nanostructured materials is paramount to engineer and exploit their vast gamut of applications. Here, a formalism based on the single-band effective mass equation was developed to determine the light absorption of colloidal quantum dots (CQDs) embedded in a wider bandgap semiconductor host, employing only three parameters (dots/host potential barrier, effective mass, and QD size). It was ascertained how to tune such parameters to design the energy level structure ...
#1Zhe Wang (NUS: National University of Singapore)H-Index: 1
#2Vijith Kalathingal (NUS: National University of Singapore)H-Index: 4
Last. Christian A. Nijhuis (MESA+ Institute for Nanotechnology)H-Index: 49
view all 5 authors...
Inelastic quantum mechanical tunneling of electrons across plasmonic tunnel junctions can lead to surface plasmon polariton (SPP) and photon emission. So far, the optical properties of such junctions have been controlled by changing the shape, or the type of the material, of the electrodes, primarily with the aim to improve SPP or photon emission efficiencies. Here we show that by tuning the tunneling barrier itself, the efficiency of the inelastic tunneling rates can be improved by a factor of ...
#1Jacob Embley (University of Texas at Austin)H-Index: 5
#2Xiaoqin Li (University of Texas at Austin)H-Index: 114
#1N. J. Lambert (University of Otago)H-Index: 9
#2Harald G. L. Schwefel (University of Otago)H-Index: 28
Various biological behaviors can only be observed in 3D at high speed over the long term with low phototoxicity. Light-field microscopy (LFM) provides an elegant compact solution to record 3D information in a tomographic manner simultaneously, which can facilitate high photon efficiency. However, LFM still suffers from the missing-cone problem, leading to degraded axial resolution and ringing effects after deconvolution. Here, we propose a mirror-enhanced scanning LFM (MiSLFM) to achieve long-te...
#1Daniel A Alexander (Dartmouth College)H-Index: 4
#2Anthony Nomezine (Dartmouth College)H-Index: 1
Last. Petr Bruza (Dartmouth College)H-Index: 12
view all 6 authors...
Color vision is used throughout medicine to interpret the health and status of tissue. Ionizing radiation used in radiation therapy produces broadband white light inside tissue through the Cherenkov effect, and this light is attenuated by tissue features as it leaves the body. In this study, a novel time-gated three-channel camera was developed for the first time and was used to image color Cherenkov emission coming from patients during treatment. The spectral content was interpreted by comparis...
#1Daniela Täuber (Leibniz Institute of Photonic Technology)
#1Jörg S. Eismann (MPG: Max Planck Society)H-Index: 9
#2Martin Neugebauer (MPG: Max Planck Society)H-Index: 15
Last. Peter Banzer (MPG: Max Planck Society)H-Index: 29
view all 4 authors...
Measuring the aberrations of optical systems is an essential step in the fabrication of high precision optical components. Such a characterization is usually based on comparing the device under investigation with a calibrated reference object. However, when working at the cutting-edge of technology, it is increasingly difficult to provide an even better or well-known reference device. In this manuscript we present a method for the characterization of high numerical aperture microscope objectives...
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