Changes induced in a ZnS:Cr-based electroluminescent waveguide structure by intrinsic near-infrared laser radiation

Vlasenko, N. A.; Oleksenko, P. F.; Mukhlyo, M. A.; Veligura, L. I.

doi:10.1134/s1063782613080216

Cited by 5 publications

(9 citation statements)

References 13 publications

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“…This suggestion and the above inference that the changes during the lasing take place in the ZnS:Cr film were confirmed by studying a cell of the ZnS:Cr structure before and after the lasing by means of X‐ray defectoscopy . XRD patterns were measured by the conventional Θ–2Θ scanning method.…”

Section: Lasing In Zns:cr Waveguide Thin‐film Structures Electricallymentioning

confidence: 59%

ZnS:Cr and ZnSe:Cr thin‐film waveguide structures as electrically pumped laser media with an impact excitation mechanism

et al. 2013

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ZnS:Cr and ZnSe:Cr are the focus of studies as media for broadly tunable optically pumped lasers operating in the near-and mid-IR regions. It is of great interest to obtain such lasers electrically pumped. The effective electrical excitation of Cr 2+ ions was demonstrated only in the case of the impact mechanism for thin-film structures with insulator layers between an electroluminescent film and electrodes, which prevent avalanche breakdown at high electric field (≥ 1 MV/cm). To obtain lasing, the waveguide electroluminescent structures were used. For the first time, the stimulated emission and the laser oscillation were demonstrated in the ZnS:Cr waveguide structures. Although the lasing is unstable as yet, these results lay the foundations of a new direction in laser physics aimed at creation of electrically pumped lasers by dint of impact excitation. Published results concerning various aspects of ZnS:Cr and ZnSe:Cr thin films and waveguide structures as promising electrically pumped laser media are reviewed. The causes of the instability of the laser oscillation and means of improving their characteristics are also considered.

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Section: Lasing In Zns:cr Waveguide Thin‐film Structures Electricallymentioning

confidence: 59%

ZnS:Cr and ZnSe:Cr thin‐film waveguide structures as electrically pumped laser media with an impact excitation mechanism

et al. 2013

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“…05‐0566) via hydrothermal approach and hexagonal wurtzite‐2H ZnS (JCPDS file no. 36‐1450) by solid‐phase reaction . The insert shows the corresponding crystal structure of ZnS and it can be observed that Zn ions are all in tetrahedral sites which can provide a tetrahedral coordination position for Cr 2+ ions.…”

Section: Resultsmentioning

confidence: 99%

“…36-1450) by solid-phase reaction. 22,23 The insert shows the corresponding crystal structure of ZnS and it can be observed that Zn ions are all in tetrahedral sites which can provide a tetrahedral coordination position for Cr 2+ ions. It is important because tetrahedral Cr 2+ may potentially exhibit broadband Mid-IR emission.…”

Section: Resultsmentioning

confidence: 99%

Mid‐infrared luminesce of ZnS:Cr²⁺‐glass composite and fiber

et al. 2019

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Cr2+‐doped materials with mid‐infrared (Mid‐IR) broadband luminescence are of fundamental importance for various applications, such as solid‐state lasers technology, biolabeling, optical telecommunication, and solar energy management. Especially, Cr2+‐doped glass has been considered as one of important material candidates. The major challenge is the precipitation of crystals doped with Cr2+ ions in glass. So, “crystals in glass composite” is an effective method to solve this issue. Here, we describe a ZnS:Cr2+ in borophosphate glass composite (CZPB) which exhibits Mid‐IR luminescence in the region from 1700 to 2900 nm with the full width at half maximum (FWHM) of about 690 nm. In addition, the materials can also be fabricated into fiber without obvious change in the characteristic luminescence band. The results provide new opportunities for the construction of the broadband fiber light source operating at Mid‐IR waveband region.

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“…Some differences in the emission of Er 3 + ions recorded through the face and edge of the ZnS:Er waveguide structure (hereafter the former and the latter will be called "the face emission " and ''the edge emission " ) were revealed [3]. The main of them is narrowing in � 1.7 times the 1.535 flill band (the transition 113/ 2 -115/ 2 ) at increasing applied voltage (V) in the case of the edge emission, which evidences its stimulated character.…”

mentioning

confidence: 99%

On a new type electrically pumped lasers with impact excitation mechanism

Vlasenko¹,

Oleksenko

Stronski

et al. 2011

2011 11th International Conference on Laser and Fiber-Optical Networks Modeling (LFNM)

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Necessity for a new type electrically pumped lasers with the impact excitation mechanism in the case of materials activated with transition metals and rare-earths is considered. It is shown that such lasers can be only realized on the basis of thin-film MIS 1M structures (M is a electrode, I is an insulator layer and S is a semiconductor electroluminescent film), which are optical planar waveguide. The possibility of creation the new laser is demonstrated by obtaining the stimulated emission and the laser oscillation in thin-film waveguide ZnS:Cr structures.Electrically pumped lasers are known up to now only for semiconductors with the injection excitation mechanism.However, this excitation mechanism is not suitable for laser materials activated with transition metals (TM) and rare-earths

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Changes induced in a ZnS:Cr-based electroluminescent waveguide structure by intrinsic near-infrared laser radiation

Cited by 5 publications

References 13 publications

ZnS:Cr and ZnSe:Cr thin‐film waveguide structures as electrically pumped laser media with an impact excitation mechanism

ZnS:Cr and ZnSe:Cr thin‐film waveguide structures as electrically pumped laser media with an impact excitation mechanism

Mid‐infrared luminesce of ZnS:Cr²⁺‐glass composite and fiber

On a new type electrically pumped lasers with impact excitation mechanism

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Changes induced in a ZnS:Cr-based electroluminescent waveguide structure by intrinsic near-infrared laser radiation

Cited by 5 publications

References 13 publications

ZnS:Cr and ZnSe:Cr thin‐film waveguide structures as electrically pumped laser media with an impact excitation mechanism

ZnS:Cr and ZnSe:Cr thin‐film waveguide structures as electrically pumped laser media with an impact excitation mechanism

Mid‐infrared luminesce of ZnS:Cr2+‐glass composite and fiber

On a new type electrically pumped lasers with impact excitation mechanism

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Product

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Mid‐infrared luminesce of ZnS:Cr²⁺‐glass composite and fiber