Microresonator photonic wire bond integration for Kerr-microcomb generation.

Extremely high-Q microresonators provide an attractive platform for a plethora of photonic applications including optical frequency combs, high-precision metrology, telecommunication, microwave generation, narrow linewidth lasers, and stable frequency references. Moreover, the desire for compactness and a low power threshold for nonlinear phenomena have spurred investigation into integrated and scalable solutions. Historically, crystalline microresonators with Q ∼ 10 were one of the first material platforms providing unprecedented optical performance in a small form factor.

Temporally and longitudinally tailored dynamic space-time wave packets.

In general, space-time wave packets with correlations between transverse spatial fields and temporal frequency spectra can lead to unique spatiotemporal dynamics, thus enabling control of the instantaneous light properties. However, spatiotemporal dynamics generated in previous approaches manifest themselves at a given propagation distance yet are not arbitrarily tailored longitudinally. Here, we propose and demonstrate a new versatile class of judiciously synthesized wave packets whose spatiotemporal evolution can be arbitrarily engineered to take place at various predesigned distances along the longitudinal propagation path.

Expression of Types I and III Collagens and Ultrastructure of the Extracellular Matrix in Rectal Adenocarcinoma of Different Differentiation Degree after Neoadjuvant Radiation Therapy.

The structural organization of the extracellular matrix of rectal adenocarcinoma of different differentiation degrees without and after neoadjuvant radiation therapy was studied on postoperative material using immunohistochemistry and electron microscopy. The differences in the expression of types I and III collagens, as well as in the ultrastructural organization of the extracellular matrix of rectal adenocarcinoma of different differentiation degrees without and after neoadjuvant radiation therapy were revealed. We observed high expression of collagen I and wide channels in the collagen matrix in the central areas of the well differentiated adenocarcinomas without neoadjuvant radiation therapy and in poorly differentiated adenocarcinomas after neoadjuvant radiation therapy, which can be associated with metastasis and poor prognosis for the patients.

Modification of χ_{c1}(3872) and ψ(2S) Production in pPb Collisions at sqrt[s_{NN}]=8.16 TeV.

The LHCb Collaboration measures production of the exotic hadron χ_{c1}(3872) in proton-nucleus collisions for the first time. Comparison with the charmonium state ψ(2S) suggests that the exotic χ_{c1}(3872) experiences different dynamics in the nuclear medium than conventional hadrons, and comparison with data from proton-proton collisions indicates that the presence of the nucleus may modify χ_{c1}(3872) production rates. This is the first measurement of the nuclear modification factor of an exotic hadron.

Amplitude Analysis of the B^{0}→K^{*0}μ^{+}μ^{-} Decay.

An amplitude analysis of the B^{0}→K^{*0}μ^{+}μ^{-} decay is presented using a dataset corresponding to an integrated luminosity of 4.7  fb^{-1} of pp collision data collected with the LHCb experiment. For the first time, the coefficients associated to short-distance physics effects, sensitive to processes beyond the standard model, are extracted directly from the data through a q^{2}-unbinned amplitude analysis, where q^{2} is the μ^{+}μ^{-} invariant mass squared.