NATIONAL INSTITUTE for LASER, PLASMA and RADIATION PHYSICS
  LABORATORY of SOLID-STATE QUANTUM ELECTRONICS

CONTRACT: 455CB/20.10.2010

Proiect Bilateral ROMANIA - BULGARIA 2010-2012                                                                                         Bilateral Project ROMANIA - BULGARIA 2010-2012
PN II, Programul CAPACITATI, Modul III                                                                                                                                                                                          

http://rawmedcol.com/
TITLU:       DEZVOLTAREA UNUI NOU SISTEM LASER PENTRU APLICATII IN CHIMIE SI BIOLOGIE
TITLE:       DEVELOPMENT
OF A NOVEL INFRARED LASER SYSTEM FOR APPLICATIONS IN CHEMISTRY AND MEDICINE

FINANTARE:      -
AUTORITATEA NATIONALA PENTRU CERCETARE STIINTIFICA (ANCS), MINISTERUL EDUCATIEI, CERCETARII, TINERETULUI SI SPORTULUI, BUCURESTI, ROMANIA
                                 - 
MINISTERUL EDUCATIEI SI STIINTEI, REPUBLICA BULGARIA
FUNDED BY:     - NATIONAL AUTHORITY FOR SCIENTIFIC RESEARCH, MINISTRY OF EDUCATION, RESEARCH, YOUTH AND SPORT, BUCHAREST, ROMANIA
                         - 
MINISTRY OF EDUCATION AND SCIENCE OF THE REPUBLIC OF BULGARIA

DirectorI de Proiect:          - Dr. Traian DASCALU (partenerul din Romana), email:  traian.dascalu@inflpr.ro 
- Assoc. Prof.
Dr. Ivan BUCHVAROV (partenerul din Bulgara), email:  ibuch@phys.uni-sofia.bg

PROJECT MANAGERS:             - Dr. Traian DASCALU (from Romania), traian.dascalu@inflpr.ro
 -
Assoc. Prof. Dr. Ivan BUCHVAROV (from Bulgaria), email:  ibuch@phys.uni-sofia.bg

DURATA PROIECTULUI:            01.10.2010 - 30.09.2012

CONDUCATOR PROIECT:         - INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI INFLPR DIN BUCURESTI,
Laboratorul de Electronica Cuantica a Solidului

                                               - SOFIA UNIVERSITY "St. KLIMENT OHRIDSKI, Physics Department, 5 James Bourchier Blvd.,1164 Sofia, BULGARIA

OBIECTIVUL PROIECTULUI
I.
 Investigarea unui sistem laser MID-IR-THZ  pentru aplicatii in chimie si medicina.
OBJECTIVE
I
. Investigation of a MID-IR-THZ laser system for applications in chemistry and medicine.

RESULTS
December 2010: The main goal was to plan the future experiments, choosing the laser and the nonlinear media. Ceramic materials like Nd:YAG and Cr:YAG were considered as possible
laser media for the oscillator system. The ray tracing method was used to study the pump radiation distribution and to determine the temperature gradients in the laser media.

December 2011: The goal was to build a compact and reliable, passively Q-switched microchip laser, with the role of seeder for the MOPA amplification stage. We have measured the laser
pulse energy for different Nd doping concentrations, and the optimal value was of 0.75 mJ for the 1.1-at.% Nd:YAG ceramic. The beam quality factor was 
M2= 1.62. Laser pulses
with 7.6 mJ energy have been obtained amplifying the 0.75 mJ pulses with a one-pass MOPA amplifier. The oscillator-amplifier system was used to pump the optical parametric oscillator for
the spectral range 2 - 4 µm.


 Papers
1. G. Salamu, A. Ionescu, C. A. Brandus, O. Sandu, N. Pavel, and T. Dascalu, “High-Peak Power, Passively Q-switched, Composite, All-Poly-Crystalline Ceramics Nd:YAG/Cr4+:YAG Laser and Generation of 532-nm
Green Light,” Laser Physics 22 (1), 68-73 (2012)
.
2. O. Sandu, G. Salamu, N. Pavel, T. Dascalu, D. Chuchumishev, A. Gaydardzhiev, I. Buchvarov, ”High-peak power, passively Q-switched, composite, all-poly-crystalline ceramics Nd:YAG/Cr4+:YAG lasers," Quantum Electronics 42 (3), 211-215 (2012).
 Conferences
1. D. Chuchumishev, I. Buchvarov, A. Gaydardzhiev, A. Trifonov, O. Sandu, and G. Salamu, “Sub-nanosecond, tunable between 3 μm and 3.5 μm OPO based on PPSLT, pumped by 0.5 kHz Nd:YAG laser,”
International Student Workshop on Laser Applications ISWLA 2011, 31 May 31 - 04 June, 2011, Bran, Romania.
2. G. Salamu, O. Sandu, N. Pavel, T. Dascalu, D. Chuchumishev, A. Gaydardzhiev, and I Buchvarov, “Passively Q-switched, Composite, All-Poly-Crystalline Ceramics Nd:YAG/Cr4+:YAG Laser,”
19th International Conference on Advanced Laser Technologies, 03 - 08 September 2011, Golden Sands, Bulgaria; in Book of Abstract, presentation O-6-LN, page 92.



Laboratory of Solid-State Quantum Electronics