High-brightness Metal Vapour Lasers

CuBr-Ne-HBr laser with a high repetition frequency of the lasing pulses at a reduced energy deposition in the discharge

“…8). This behavior of the electron concentration is also typical of Cu lasers with and without any additives [3]. With HBr additives, among the main reactions affecting the electron concentration in the interpulse period are the reactions of dissociative electron attachment to HBr and CuBr molecules (and their inverse reactions):…”

“…Experimental studies revealed that addition of hydrogen-containing additives (H 2 , HBr, HCl, etc.) to the active medium of the CuBr laser not only increases the average lasing power twice and more (which appreciably surpasses the effect of additives in the KEL) but also raises the optimum and maximum pulse repetition frequencies [3,4]. Currently, the highest lasing pulse repetition frequency of a CuBr laser is 700 kHz [16,17], which is the maximum value for self-terminating lasers in the visible range.…”

Structural, Morphological and Optical Properties of Nanoproducts of Zirconium Under Laser Ablation in Water and in Aqueous SDS Solutions

“…CVL generation was performed at two wave lengths: 510.6 and 578.2 nm, line power ratio was correspondingly 2:1. UV light (255, 271 and 289 nm) was obtained by nonlinear conversion of the Cu laser radiation (510.6 and 578.2 nm) in a BBO crystal [3]. The laser beam was focused on the target sur face by an achromatic lens with focal distance of f = 280 mm, that provided the spot diameter of less than 100 µm.…”

“…The target was placed into a glass cell with deionized water or aqueous solutions of a surfactant. The volume of the liquid in the cell was ~ 10 cm 3 . The cell was placed in a vessel with cooling water, its temperature was kept at 300 K. The vessel was installed on a movable table that permitted to constantly move the focal spot over the target surface.…”

“…Z¸hn ex ®Z* (2) Z*®Z¸hn lum (3) Z¸hn ex ®Z + +e (photoionization of defects, Z) (4) Z*®Z + +e (thermal ionization of defects, Z*) (5) Z + +e®(Z*)®Z+hn lum (6) where Z and Z* are basic and excited states of luminescence centers, process (6) is recovery of Z state by means of electron capture. With consideration of conditions of ZrO 2 nanostructure synthesis processes (2) -(6) seem very probable in the present experiment.…”