Multiwavelength highly transient stimulated Raman scattering on dual Raman modes in Sr(MoO)(WO) and Sr(MoO)(WO).

For the first time to our knowledge, multiwavelength, highly transient, single-pass stimulated Raman scattering with a low wavelength spacing on dual (stretching and bending) Raman modes in Sr(MoO)(WO) and Sr(MoO)(WO) solid solutions in a range of 1000-1300 nm (transparence window of biological tissue) under ultrafast chirped pulse laser pumping is comparatively investigated in the interests of multicolor two-photon imaging of a living tissue. For both the solid solutions, the optimum range (1-5 ps) of chirped pump pulse durations for multiwavelength Raman conversion on dual Raman modes was wider than for SrMoO (2-3 ps) due to the higher integral cross section of the bending Raman mode. Higher efficient SRS conversion took place at negative chirping of the pump pulse with its stretching from 0.

The influence of the psychosocial stress on oral health status in the conditions of being in Ukraine during the prolonged state of martial law.

Objective: Aim: To study the presence of clinical and biochemical correlations between psycho-emotional stress, level of cortisol and periodontal oral health status of the patients in Ukraine during prolonged martial law.

Patients And Methods: Materials and Methods: The comprehensive clinical and laboratory study covered 49 persons, including 20 patients with Gingivitis (40.8%) and 29 with Periodontitis (59.

Highly transient stimulated Raman scattering in SrMoO under ultrafast laser pumping with a controllable chirp.

For the first time, to the best of our knowledge, we demonstrate highly transient, multiwavelength, single-pass Raman generation with combined frequency shifts on two Raman modes of an SrMoO crystal with high total Raman conversion efficiency of up to 48% in conditions of competition with self-phase modulation (SPM). A 58-mm-long SrMoO crystal was used as the active medium under pumping by the 1030-nm, 40-µJ laser pulses with controllable dispersive stretching in a range of 0.25-6 ps at negative and positive chirping.

[A clinical case of aromatase excess syndrome associated with 15Q21.2 duplication].

Aromatase excess syndrome (SIA) is a rare autosomal dominant disease caused by increased extraglandular conversion of androgens to estrogens. SIA is characterizedby early gonadotropin-independent hyperestrogenemia, causing pre-pubertal gynecomastia in boys and premature isosexual development in girls. Adults patients have short stature, due to the early closure of epiphyses because of hyperestrogenemia.

Nanosecond parametric Raman anti-Stokes SrWO laser at 507 nm with collinear phase matching.

Collinear phase matching of the Stokes ↔ anti-Stokes interaction for Raman-active crystals with different birefringence was studied theoretically as well as experimentally. It was shown that collinear phase matching of the Stokes ↔ anti-Stokes interaction in low-birefringent crystals can be insensitive to angular mismatch if a phase matching angle is higher than 60. We have developed and experimentally realized an extracavity parametric Raman anti-Stokes laser based on a low-birefringent SrWO.