Optical and electro-optical properties of ZnMgSe single crystals

Puzikov, V. M.; Zagoruiko, Yu. A.; Fedorenko, O. A.; Kovalenko, Nazar O.

doi:10.1134/1.1690419

Cited by 6 publications

(2 citation statements)

References 3 publications

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“…Neither of the crystal faces had had antireflection coating. As the index of refraction n 0 of the ZnMgSe matrix is ~ 2.2 (for the wavelength of 3 μm) 24 , each crystal face represents Fresnel losses ~ 14 % for pumping radiation.…”

Section: Fecr:znmgse Bulk Laser Crystalsmentioning

confidence: 99%

Gain-switched Fe:ZnMgSe laser oscillation under cryogenic temperature

et al. 2014

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The spectroscopic and laser properties of bulk Bridgman-grown Fe,Cr:Zn 1-x Mg x Se single crystals with the various concentrations of Mg (x=0.19; x=0.27; x=0.38) were investigated in the wide temperature range. The pumping was provided by a 2.94 μm Q-switched Er:YAG laser with a maximal energy of 15 mJ in 120 ns pulse, repetition rate 1 Hz. Q-switched operation was achieved by the Brewster angle cut LiNbO3 Pockels cell placed between the rear mirror and the Er:YAG laser active medium. The pump radiation was directed into the Fe:ZnMgSe crystal placed inside the LN cooled dewar. The 55 mm long plane-concave cavity was formed by a dichroic pumping mirror (T = 92 % @ 2.94 μm and R = 100 % @ 4 -5 μm) and a output coupler (R = 95 % @ 4.5 μm, r = 200 mm). The strong dependence of output pulse energy on temperature was observed for all samples. The maximum output Fe,Cr:Zn 1-x Mg x Se laser energy was 230 μJ and 180 μJ (for Mg concentration x=0.19 and x=0.38, respectively) for gain switched operation at 88 K. The central emission wavelength of ~ 4600 nm, ~ 4700 nm and ~ 4800 nm for Mg concentration x=0.19; x=0.27, and x=0.37, respectively at 88 K was obtained. The emission wavelength was found to increase up to ~ 4700 nm and ~ 4900 nm at 250 K for Mg concentration x=0.19 and x=0.38, respectively. This results show the possibility to obtain sufficiently longer oscillation wavelengths compared to previously studied Fe:ZnSe active medium especially at liquid nitrogen temperatures when pumping by free-running Er:YAG laser becomes possible. Fluorescence spectra and lifetimes of Fe 2+ ions in different Zn 1-x Mg x Se crystals in the range from 250 K down to 80 K were also measured.

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Section: Fecr:znmgse Bulk Laser Crystalsmentioning

confidence: 99%

Gain-switched Fe:ZnMgSe laser oscillation under cryogenic temperature

et al. 2014

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“…Among them it is possible to note the perspective single-crystalline A II B VI compounds. For instance, hexagonal single crystals of CdS and CdSe compounds and their solid solutions CdS 1-x Se x and ZnSe, Zn 1-x Mg x Se crystals [1][2][3][4][5][6]. As is known by choice of the content of particular elements (parameter x) in like compounds of mixed type it is possible to tune of band gap energies, crystalline structure and lattice constants in a wide range of values [3].…”

Section: Introductionmentioning

confidence: 99%

SHG in IR Region in Mixed Zn1-xMgxSe Crystals

Kasumova¹

2013

AJOP

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In the present work the results of investigations of the influence of different parameters on conversion efficiency in mixed Zn 1-x Mg x Se crystal in conditions of existing experiments are cited. The comparison of the obtained results on conversion efficiency with the analogous experimentally measured values has been made. The results of calculation of the angles of phase matching and angular dispersion coefficients for Zn 0.52 Mg 0.48 Se crystal on wavelengths of the IR range are cited. The angular dispersion coefficients for Zn 1-x Mg x Se have been calculated. The angular width of phase matching has been estimated.

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