Papers 1,850
1 page of 185 pages (1,850 results)
#1Sheng Xiao (BU: Boston University)H-Index: 5
#2Ian G. Davison (BU: Boston University)H-Index: 15
Last. Jerome Mertz (BU: Boston University)H-Index: 47
view all 3 authors...
A passive add-on greatly multiplies the sweep rate of any mechanical scanner while also enhancing throughput, enabling a single linear scanner to produce ultrafast 1D or 2D laser scans for general applications.
#1Hang Yuan (TJU: Tianjin University)
#2Pengfei Zhang (TJU: Tianjin University)
Last. Feng Gao (TJU: Tianjin University)
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Recently, compressive sensing has been introduced to confocal Raman imaging to accelerate data acquisition. In particular, unsupervised compressive imaging methods do not require a priori knowledge of an object’s spectral signatures, and they are thus applicable to unknown or dynamically changing systems. However, the current methods based on either spatial or spectral undersampling struggle between spatial and spectral fidelities at high compression ratios. By exciting a sample with an array of...
#1Henry Arguello (UIS: Industrial University of Santander)H-Index: 19
#2Samuel Pinilla (UIS: Industrial University of Santander)H-Index: 6
Last. Gordon Wetzstein (SU: Stanford University)H-Index: 53
view all 6 authors...
State-of-the-art snapshot spectral imaging (SI) systems introduce color-coded apertures (CCAs) into their setups to obtain a flexible spatial-spectral modulation, allowing spectral information to be reconstructed from a set of coded measurements. Besides the CCA, other optical elements, such as lenses, prisms, or beam splitters, are usually employed, making systems large and impractical. Recently, diffractive optical elements (DOEs) have partially replaced refractive lenses to drastically reduce...
#1Lin Liu (NTU: Nanyang Technological University)H-Index: 3
#2Landobasa Y. M. Tobing (NTU: Nanyang Technological University)H-Index: 15
Last. Yu Luo (NTU: Nanyang Technological University)H-Index: 42
view all 8 authors...
Strong light–matter interaction in 2D materials at the few-exciton level is important for both fundamental studies and quantum optical applications. Characterized by a fast coherent energy exchange between photons and excitons, strongly coupled plasmon–exciton systems in 2D materials have been reported with large Rabi splitting. However, large Rabi splitting at the few-exciton level generally requires large optical fields in a highly confined mode volume, which are difficult to achieve for in-pl...
#1Martino Bernard (FBK: Fondazione Bruno Kessler)H-Index: 9
#2Fabio Acerbi (FBK: Fondazione Bruno Kessler)H-Index: 18
Last. Mher Ghulinyan (FBK: Fondazione Bruno Kessler)H-Index: 23
view all 10 authors...
On-chip direct coupling of dielectric waveguides to Si substrate-integrated photodetectors has been realized within a top-down approach. A first-run 44% external quantum efficiency at 850 nm is shown for an oxynitride photonic integrated circuit at room temperature.
#1Mor Elgarisi (Technion – Israel Institute of Technology)
#2Valeri Frumkin (Technion – Israel Institute of Technology)H-Index: 4
Last. Moran Bercovici (Technion – Israel Institute of Technology)H-Index: 19
view all 4 authors...
Freeform optical components enable advanced manipulation of light that is not possible with traditional optical systems. However, their fabrication relies on machining processes that are complex, time-consuming, and require significant infrastructure. Here we present the ability to shape liquid volumes and solidify them into desired freeform components, enabling rapid prototyping of freeform components with high surface quality. The method is based on controlling the minimum energy state of the ...
#1Qiancheng Zhao (UCSB: University of California, Santa Barbara)H-Index: 9
#2Mark W. Harrington (UCSB: University of California, Santa Barbara)H-Index: 5
Last. Daniel J. Blumenthal (UCSB: University of California, Santa Barbara)H-Index: 52
view all 10 authors...
Photonic integrated resonators have advantages over traditional benchtop cavities in terms of size, weight, and cost with the potential to enable applications that require spectrally pure light. However, integrated resonators suffer from temperature-dependent frequency variations and are sensitive to external environmental perturbations, which hinders their usage in precision frequency applications. One solution is to use interrogation of the cavity temperature through dual-mode optical thermome...
#1Kunhong Shen (Purdue University West Lafayette)H-Index: 2
#2Yao Duan (PSU: Pennsylvania State University)H-Index: 4
Last. Tongcang Li (Purdue University West Lafayette)H-Index: 26
view all 9 authors...
Optical levitation of dielectric particles in vacuum is a powerful technique for precision measurements, testing fundamental physics, and quantum information science. Conventional optical tweezers require bulky optical components for trapping and detection. Here, we design and fabricate an ultrathin dielectric metalens with a high numerical aperture of 0.88 at 1064 nm in vacuum. It consists of 500-nm-thick silicon nano-antennas, which are compatible with an ultrahigh vacuum. We demonstrate optic...
#1Xiang XiH-Index: 5
#2Jingwen MaH-Index: 6
Last. Xiankai SunH-Index: 28
view all 8 authors...
The textbook-accepted formulation of electromagnetic force was proposed by Lorentz in the 19th century, but its validity has been challenged due to incompatibility with the special relativity and momentum conservation. The Einstein-Laub formulation, which can reconcile those conflicts, was suggested as an alternative to the Lorentz formulation. However, intense debates on the exact force are still going on due to lack of experimental evidence. Here, we report the first experimental investigation...
#1Laurène Quénot (UGA: Grenoble Alpes University)H-Index: 1
#2Hélène Rougé-Labriet (ÉTS: École de Technologie Supérieure)
Last. Emmanuel Brun (UGA: Grenoble Alpes University)H-Index: 5
view all 5 authors...
X-ray phase contrast imaging (PCI) has shown great potential for clinical investigation of soft tissues. However, most of the existing X-ray PCI modalities require either a partially coherent source such as a synchrotron or complex setups that are barely compatible with low-dose and patient tomography. This work demonstrates the possibility to efficiently achieve PCI on a low coherence system with a conventional X-ray tube and a detector compatible with a clinical routine. This was accomplished ...
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