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©Francesc Díaz. October 2004. Fabrication and characterisation of new optical and photonic crystalline materials Francesc Diaz.

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Presentation on theme: "©Francesc Díaz. October 2004. Fabrication and characterisation of new optical and photonic crystalline materials Francesc Diaz."— Presentation transcript:

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2 ©Francesc Díaz. October Fabrication and characterisation of new optical and photonic crystalline materials Francesc Diaz

3 Permanent staff: Prof. Francesc Díaz Prof. Magdalena Aguiló Dra. Josefina Gavaldà Dr. Jaume Massons Dra. Rosa Solé FiCMA members Post-Docs: Dr. Joan Carvajal Dr. Xavier Mateos PhD students: Anna Aznar Frank Güell Isabel Parreu Sandra Peña Oscar Silvestre Montse Galceran Technicians: Agustí Montero Nicolette Bakker (part time) © Francesc Díaz. October Ramon y Cajal Researcher: Dra. M. Cinta Pujol

4 Active Projects in the field of nanomaterials Design and fabrication of periodic micro and nanostructured materials for photonic processes. Applications to solid state laser and nanodevices. MAT C05 Double tungstate crystals. Synthesis, characterisation and applications (DT- CRYS). STRP Nanotechnologies, materials and processes (NMP-3). FP6 of EU. © Francesc Díaz. October 2004.

5 Nd:YAG KTP LASER Materials. Hosts and frecuency multipliers.  22 pumping Example of materials for doubling frecuency Laser host Doubling frecuency Material. © Francesc Díaz. October 2004.

6 Laser Radiation Solid state laser h STIMULATION PHOTON h COLLECTION OF COHERENT PHOTONS © Francesc Díaz. October Solid host Active ion

7 KGW:RE KYW:RE KYbW:RE KErW:RE KLuW:RE LASER MATERIALS (Bulk single crystals) KRE(WO 4 ) 2 family Monoclinic phase Space group, C2/c © Francesc Díaz. October P International patent of FiCMA recently transferred to two companies Monoclinic phase of KRE(WO 4 ) 2 Space group, C2/c

8 Epitaxial layer of KYW:Yb on (010) faces of KYW substrate MICRO AND NANO SINGLE CRYSTAL LAYERS © Francesc Díaz. October P National patent of FiCMA (110)

9 Thin disc laser. pumping Laser layer © Francesc Díaz. October Laser emission substrate

10 Preparation of Nanopowders of KREW by Sol-Gel Sol-Gel : Pechini Method KGdW Monoclinic Phase © Francesc Díaz. October 2004.

11 Studies Effect of particle size on RE 3+ doping © Francesc Díaz. October Effect of particle size on spectroscopy of RE 3+ ions 6 Chem. Mat. 5 IEEE J. Quant. Elect. 3 Phys. Rev. B 2 APL 4 Opt. Mat. 1 JAP 1 J. Appl. Cryst. 1 Appl. Phys. B 2 Invited conferences 14 Oral presentations in Int. Conferences 17 Posters in Int. Conferences Effect of layer thickness on RE 3+ spectroscopy and lasing 2 Patents

12 IF SECOND ORDER: AS Sin 2 (  t) = (1 - Cos(2  t)) / 2, THEN IT RESULTS:: IF THE CAPACITY OF POLARISATION IS INTENSE, THE RELATION BETWEEN ELECTRICAL FIELD AND THE POLARISATION IS POLINOMIAL ( HIGHER ORDER TERMS= NON LINEARS ). THEREFORE, IT TAKES PLACE THE NON-LINEAL OPTICS Non lineal Optics. © Francesc Díaz. October 2004.

13 RTP RTP:Nb RTP:(Nb,Er) RTP:(Nb,Yb) NLO MATERIALS (Bulk single crystals) © Francesc Díaz. October RbTiOPO 4 family. Orthorombic phase Spacel group of simetry: Pna2 1 Orthorombic phase Spacial group of simetry: Pna2 1

14 Fabrication of photonic crystals of the KTP family 1-D photonic crystals in PPRTP 2-D photonic crystals in KTP © Francesc Díaz. October 2004.

15 Studies QPM Effect characterisation © Francesc Díaz. October Chem. Mat. 2 Phys. Rev. B 2 APL 1 Opt. Mat. 1 JAP 1 J. Appl. Cryst. 3 Oral presentations in Int. Conferences 7 Posters in Int. Conferences Material fabrication processes

16 Thank you for your attention. Tarragona, october 2004


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