[Direct assessment of changes in biomechanical properties of the cornea after ReLEx SMILE and FemtoLASIK surgeries].

Unlabelled: The aim of this study was to evaluate corneal biomechanical properties in myopic patients after ReLEx SMILE and FemtoLASIK surgeries using the Corvis ST analyzer.

Material And Methods: The SMILE group comprised 23 patients (46 eyes) with spherical refraction -3.8±1.

Plasmonic nanolaser based on a single oligomer.

We investigate the effect of manipulating the laser quality factor and the spectral properties of the gain medium on an oligomer-based plasmonic nanolaser. We develop different designs of the oligomer resonators, decreasing the lasing threshold and increasing the mode lifetime to improve the lasing efficiency. Based on the designs we are able to decrease the lasing threshold by a factor of ten.

Perinatal outcomes of first pregnancy after chemotherapy for gestational trophoblastic neoplasia: a systematic review of observational studies and meta-analysis.

Objective: To assess perinatal outcomes of first pregnancy after remission from gestational trophoblastic neoplasia and the impact of the time between the end of chemotherapy and the subsequent pregnancy.

Data Sources: The Medical Subject Headings related to perinatal outcomes, chemotherapy, and gestational trophoblastic neoplasia were used alone or in combination to retrieve relevant articles. We searched all references registered until April, 2019 in Embase, LILACS, MEDLINE, the Cochrane Central Register of Controlled Trials, and Web of Science.

Selective excitation of localized surface plasmons by structured light.

We investigated the selective excitation of localized surface plasmons by structured light. We derive selection rules using group theory and propose a fitting integral to quantify the contribution of the eigenmodes to the absorption spectra. Based on the result we investigate three nano oligomers of different symmetry (trimer, quadrumer, and hexamer) in detail using finite-difference time-domain simulations.

Setting benchmarks for modelling gas-surface interactions using coherent control of rotational orientation states.

The coherent evolution of a molecular quantum state during a molecule-surface collision is a detailed descriptor of the interaction potential which was so far inaccessible to measurements. Here we use a magnetically controlled molecular beam technique to study the collision of rotationally oriented ground state hydrogen molecules with a lithium fluoride surface. The coherent control nature of the technique allows us to measure the changes in the complex amplitudes of the rotational projection quantum states, and express them using a scattering matrix formalism.