A Noval Switch Mode Power Supply for Flash Lamp Pumped Nd: Yag Laser

Growth and characterization of Na3R(BO3)2 (R = La–Gd) borates: crystal structure, high-temperature behavior, and optical properties

“…The second one is located at ∼1057 nm and associated with the 4 F 3/2 → 4 I 11/2 transition. 60,70–72 Moreover, for different Nd 3+ concentrations, no peak shift is observed; however, there is a little change in the luminescence band profile.…”

Spectroscopic and Radiative Properties of Several Nd3+ Ions in Borate Glass System

“…This paper focused to discuss of optical properties such as absorption spectra, oscillator strength f, JudOfelt parameters  2 , 4,6 , branching ratio  R , radiative transition probabilities A R , emission spectra and radiative lifetime  R for special of the hypersensitive transition Nd level to 4 I 11/2 level. The highest of the oscillator strength obtained when the current of 49,5 mol% boric nevertheless the high content of borate not guarantee can increase the value of the oscillator strength.…”

“…The above related to Nd 3+ laser application such as optical amplifier, laser pumping, optical communication, optical waveguide, storage data optically, radar and medical instrumentation [1][2][3][4][5]. Medium gain laser characteristics for commercial laser required were must satisfied sharpness fluorescent lines, strong absorption bands and sensible for high quantum efficiency in accordance with the needed transition photon [6].The above requirements have been obtained by a small amount of concentration Nd 3+ ions-doped glass material, since Nd 3+ ions were able to produce population inversion for result stimulated emission in the visible range (such as emission transition at 4 G 7/2  4 I 9/2 , 4 G 7/2  4 I 11/2 , 4 G 7/2  4 I 13/2 ) [7] and the NIR range (lasing transition 4 F 3/2  4 I 9/2 , 4 F 3/2  4 I 11/2 , 4 F 3/2  4 I 13/2 ) [1]. Improved laser performance is strongly influenced by the composition of the host glass matrix and the concentration of doped ions, since the stimulated emission quality depends on host matrix in which the ions are incorporated [7,8].…”

Indonesian plants potentially to be used as the hair growth promoting agent

“…What chemicals in plants have biological activity in promoting hair growth? From a variety of literature review, Semwal et al (2011) found there are dozens of phytochemical suspected effects on hair growth, including saponin, alkaloids, ecliptine, wedelic acid, luteolin, triterpine, glycosides, β-sitosterol, hentriacontanol, vitamin A, vitamin C, iron calcium oxalic, malic acid, α pinene, β pinene, fatty acid, sterol compounds, polyphenols, steroids, volatile oil and essential oil [12].…”