Proiect Bilateral ROMANIA - UCRAINA, 2016 - 2017 Bilateral Project ROMANIA- UKRAINE, 2016 - 2017
PN II, Programul CAPACITATI, Modul III ___________________________________________________________________________________________________________________________________________________
TITLE: DEVELOPMENT OF Y2O3:Yb3+ POLYCRYSTALLINE LASER MATERIAL FOR MICROCHIP LASERS BY CERAMIC ENGINEERING
ACRONYM: CERYB
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FINANTARE: - Unitatea Executiva pentru Finantarea Invatamantului Superior, a Cercetarii, Dezvoltarii si Inovarii (UEFISCDI), Ministerul Educatiei Nationale si Cercetarii Stiintifice, Romania
- Agentia de Stat pentru Stiinta, Inovare și Informatizare (ASSII), Ministerul Educatiei si Stiintei, Ucraina
FUNDED BY: - Executive Unit for Financing Higher Education, Research, Development and Innovation (UEFISCDI), Ministry of National Education and Scientific
- State Agency on Science, Innovation and Informatization (ASSII), Ministry of Education and
- Dr. YAVETSKIY Roman (din
PROJECT MANAGERS: - Dr. GHEORGHE Lucian Marian (from Romania
- Dr. YAVETSKIY Roman (from
DURATA PROIECT: Iunie 2016 - Decembrie 2017
PROJECT
DURATION:
June 2016
- December 2017
PARTENERI / PARTNERS: - NATIONAL INSTITUTE FOR LASER, PLASMA AND RADIATION PHYSICS, Laboratory of Solid-State Quantum Electronics, Ilfov, 077125 Magurele, Romania
- INSTITUTE FOR SINGLE CRYSTALS, NAS OF UKRAINE, Department of Crystalline Materials and Complex Compounds, 60 Lenin Ave., 61001, Kharkhov, Ukraine
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OBIECTIVUL PROIECTULUI
● Dezvoltarea de noi materiale policristaline (ceramici) transparente de tip Y2O3:Yb, cu absorbtie si difuzie reziduala foarte reduse, pentru constructia de laseri microcip.
PROJECT OBJECTIVE
● Development of new polycrystalline (ceramics) transparent materials of Y2O3:Yb type, with very low absorption and residual diffusion, for the construction of microchip lasers.
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REZULTATE
ETAPA
I. Decembrie 2016.
●
Au
fost obtinute diverse pulberi de tip (Y1-xYbx)2O3
si s-au optimizat dimensiunile nanopulberilor precursoare, parametrii
de
amestecare in moara cu bille, tipul si concentratia aditivilor de
sinteriza.
● S-au
obtinut primele ceramici de tip Y2O3:Yb
cu parametrii termici si
temporali de sinterizare optimizati intr-o prima etapa (Fig. 1).
Fig. 1. Ceramici Y2O3:Yb obtinute folosind diferite tipuri de pulberi precursoare si La2O3 ca aditiv de sinterizare.
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ETAPA
II. Decembrie 2017.
●
Au
fost obtinute
pulberi de tip (Y1-x-y-zLaxZryYbz)2O3
si s-au optimizat concentratia aditivilor la sinterizare, parametrii de
amestecare in moara cu bile si de compactare prin presare izostatica,
conditiile termice si temporale de calcinare, presinterizare in aer si
sinterizare in vid. In
Fig. 2 sunt prezentate doua dintre ceramicile de
tip Y2O3:Yb3+
de calitate optica ridicata,
dopate cu 2.0 si respectiv 4.0-at.% ioni Yb3+. Ca
aditivi la sinterizare au fost utilizati La2O3
si ZrO2.
Fig. 2. Ceramici
transparente de tip Yb:Y2O3
dopate cu 2.0-at.% (stanga) si 4.0-at.% (dreapta) ioni Yb3+.
● Au fost caracterizate proprietatile morfologice, structurale si spectroscopice ale ceramicilor Y2O3:Yb3+ obtinute. Au fost evaluati parametrii spectrali in functie de continutul de ioni Yb3+ in scopul optimizarii eficientei de emisie laser. Microstructura ceramicilor obtinute a fost investigata prin experimente de microscopie electronica de baleiaj.
NOTA: Cercetarile efectuate in cadrul proiectului au fost partial sustinute de catre Unitatea Executiva pentru Finantarea Invatamantului Superior, a Cercetarii, Dezvoltarii si Inovarii (UEFISCDI), Ministerul Educatiei Nationale si Cercetarii Stiintifice (MENCS), Romania, prin programul NUCLEU, in baza acordului de finantare 4N/2016.
VALORIFICATION
OF THE RESULTS
I.
Papers
in ISI-indexed journals
1. I.О
. Vorona, R. P. Yavetskiy, A. G. Doroshenko, S. V.
Parkhomenko, V. N. Baumer, A. V. Tolmachev, D. Yu Kosyanov, V. I.
Vovna, V. G.
Kuryavyi, M. Greculeasa, L. Gheorghe, S. Hau, C. Gheorghe, G. Croitoru,
“Structural-phase state and lasing of 5-15 at% Yb3+:Y3Al5O12
optical ceramics,” J. Eur. Cer. Soc. 37,
4115-4122 (2017).
2. R.
P. Yavetskiy, S. V. Parkhomenko, I. O. Vorona, A. V.
Tolmachev, D. Yu. Kosyanov, V. G. Kuryavyi, V. Yu. Mayorov, L.
Gheorghe, G.
Croitoru, M. Enculescu, “Effect of green body annealing on laser
performance of
YAG:Nd3+ ceramics,”
3. I.O.
Vorona, R.P. Yavetskiy, M.V. Dobrotvorskaya,
A.G. Doroshenko, S.V. Parkhomenko, A.V. Tolmachev, D.Yu. Kosyanov, L.
Gheorghe,
C. Gheorghe,
II.
Papers
indexed in other international databases
1. I.
O. Vorona, R. P. Yavetskiy, A. G. Doroshenko, S.
V. Parkhomenko, A. V. Tolmachev, L. Gheorghe, M. Greculeasa, C.
Gheorghe, S.
Hau, C. Brandus, and G. Croitoru,
“Nd3+:YAG Ceramic Materials with
Efficient Laser Emission under Diode-Laser Pumping,” in Laser Ignition
Conference 2017, OSA Technical Digest (online) (Optical Society of
America, 2017),
paper LWA5.4 (https://www.osapublishing.org/abstract.cfm?URI=LIC-2017-LWA5.4).
1. I. Vorona, R. Yavetskiy, A. Doroshenko, S. Parkhomenko, A. Tolmachev, S. Hau, C. Gheorghe, G. Croitoru, L. Gheorghe, “Yb3+:YAG transparent ceramics as active media for diode-pumped lasers,”
6th International Conference on Excited States of Transitions Elements, ESTE 2016, 21-26 August 2016, Polanica Zdrój, Poland, (poster presentation P-41).
2. I.O. Vorona, R.P. Yavetskiy, M.V. Dobrotvorskaya, A.G. Doroshenko, S.V. Parkhomenko, A.V. Tolmachev, L. Gheorghe, C. Gheorghe, S. Hau, “Solid-state sintering and luminescent properties of Yb3+, Er3+:YAG transparent ceramics,” International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications, OMEE-2017, May 29 - June 2, 2017, Lviv, Ukraine (poster Mo-P59).
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