The pump-probe TL spectrometry was used, for the first time to our knowledge, to study heat generation, fluorescence quantum efficiency, and thermal properties of Nd:YAG under laser action at 1064 and 1340 nm, and without laser operation. The results showed that the thermal loading was strongly dependent on laser emission wavelength, being >2 times when operating at 1340nm compared to 1064 nm. ...

Abstract This article studies kabbalistic interpretation of a ritual unknown origin: the daily recitation manna episode (Exod 16:1–36). foregrounds major theme in writings R. Baḥya ben Asher ibn Halawa ( c .1255–1340) and many other medieval kabbalists: cyclical nature sustaining existence. Baḥya’s builds on two primary sources: Jacob Sheshet Gerondi’s commentary Ps 145 his polemic Meshiv Devar...