Continuous-Wave Submillimeter Oscillation in Discharges Containing C, N, and H or D

Abstract

Experimental observations are presented of the continuous oscillation of a submillimeter laser using gaseous compounds of C, N, and H or D, the relative independence of the output on the particular gases used, and the effect of the addition of water or He. With pure (CN)2 no laser action was obtained, but addition of H2O or D2O gave two different sets of laser lines. At present, in the region between 107.71 and 336.83 μ, ten laser lines have been obtained with dc excitation.

Structure of New 2‐Oxo‐2,8‐dihydro‐[l,2,4]oxadiazolo‐[2,3‐a]pyrimidinecarbamates

“…The unequivocal proof of the structure of 1 was obtained by X-ray crystallographic analysis of l c (see Fig. 2 and Tables [7][8][9][10][11] which corroborated the structural assignments based on IR. and NMR.…”

“…data. [8] in 170 ml CH2C12 and 20 ml of triethylamine was treated dropwise at 0" with a solution of 65 ml (64,7 mmol) of CICOOCH3. The mixture was stirred at 0" for 1 h at r.t. for an additional hour, and subsequently washed with water.…”

Global Properties of Nucleus–Nucleus Collisions

“…More about this in section 3.5. We infer the existence of a saturation scale [52] controlling the total inelasticity: with ever higher reactant thickness, proportional to A 1/3 , one does not get a total rapidity or energy density proportional to A 4/3 (the number of "successive binary collisions") but to A 1.08 only [53]. Note that the lines shown in Fig.…”

“…9 (right panel) refer to such a saturation theory: the color glass condensate (CGC) model [43] developed by McLerran and Venugopulan. The success of these models demonstrates that "successive binary baryon scattering" is not an appropriate picture at high √ s. One can free the partons from the nucleonic parton density distributions only once, and their corresponding transverse areal density sets the stage for the ensuing QCD parton shower evolution [52]. Moreover, an additional saturation effect appears to modify this evolution at high transverse areal parton density (see section 3.4).…”

Surface Plasmon‐Enhanced High‐Performance ZnO/Ni/ZnO Ultraviolet Photodetectors

“…As the Ni film thickness increased from 2.0 to 8.0 nm, the RMS roughness of Ni/ZnO templates increased from 1.32 nm to 2.44 nm. Although Ni films below 10 nm in thickness are generally too thin to form a continuous layer, [32] we believe that a fewnanometer-thick Ni film was deposited uniformly on the ZnO/ sapphire template without forming Ni clusters. In addition, as the Ni film thickness increased from 2.0 to 8.0 nm, the RMS roughness of the ZnO/Ni/ZnO MS films increased from 2.94 to 4.33 nm.…”