•  
  •  
 

Scientific-technical journal

Abstract

The absorption spectra of Y2SiO5: Er3 + crystals irradiated with gamma rays and heat-treated under reducing conditions have been investigated. It is shown that, upon irradiation and heat treatment of crystals, oxygen is removed from the oxygen seven-vertex surrounding the cerium ions, which leads to the transformation of Er1 centers into Er2. The electronic transitions of erbium ions in Er1 and Er2 positions have been solved.

First Page

77

Last Page

81

References

[1] Harris T.L., Sun Y., Cone R.L., Macfarlane R.M., and Equall R.W.1998. Demonstration of real-time address header decoding for optical data routing at 1536  nm . Opt. Lett. 23. 636 [2] Staudt M.U., Hastings-Simon S.R., Afzelius M., Jaccard D., Tittel W., and Gisin N.2006. Investigations of Optical Coherence Properties in an Erbium-doped Silicate Fiber for Quantum State Storage. Opt. Commun. 266.720. [3] Macfarlane R.M., Harris T.L, Sun Y., Cone R.L., and Equall R.W.1997.Measurement of photon echoes in Er:Y2SiO5 at 1.5  µm with a diode laser and an amplifier.Opt. Lett. 22. 871. [4] Pang H., Zhao G., Su L., Jie M., X. He and Xu J.2006. Effect of γ-irradiation on spectral properties of undoped Y2SiO5 crystals.Cryst. Res. Technol. 41.255–258. [5] Felsche J. 1973. The crystal chemistry of the rare-earth silicates. Structure and Bonding, Springer-Verlag. 13.1399-197. [6] Brandle C.D., Valentino A.J., Berkstresser G.W. 1986. Czochralski growth of rare-earth orthosilicates (Ln2SiO5). J. of Crystal Growth. 79. 308-315. [7] VaxidovSH.A., NuritdinovI., IkramovG.I. 1988. Kataliticheskaya rol poverxnosti pri vzaimodeystvii obemnix tochechnix defektov okisnix kristallov s kislorodom iz gazovoy fazi pri visokix temperaturax. V kn.: «Radiatsionnie effekti v mnogofaznix geterogennix dielektrikax»Tashkent. «Fan». 186-194. [8] Nuritdinov I., Esanov Z.U., Islamov A.X. 2016.Strukturnie defekti kristallov Y2SiO5, navedennie neytronnm oblucheniem.Uzbekskiy fizicheskiy jurnal. 4.264–268. [9] AshurovM.Kh., Nuritdinov I., Esanov Z.U., Saidakhmedov K.Kh., 2019. Effect of Heat Treatment in a Reducing Atmosphere on Absorption and Luminescence Spectra of Y2SiO5:Se Crystals. InorganicMaterials. 8, 55, 815–819. [10] NuritdinovI, EsanovZ.U.2020.Vzaimoprevraщenie Nd3+tsentrovvkristallax Y2SiO5pri obluchenii i vosstanovitelnoy termoobrabotke. V trudax Mejdunarodnoy konferentsii «Fundamentalьnыe i prikladnыe voprosi fiziki», 22-23 sentyabrya 2020g. s.73-76.

Download

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.