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

©Francesc Díaz. October 2004.

Fabrication and characterisation of new optical

and photonic crystalline materials

Francesc Diaz

Permanent staff:

Prof. Francesc Díaz

Prof. Magdalena Aguiló

Dra. Josefina Gavaldà

Dr. Jaume Massons

Dra. Rosa Solé

FiCMA members

Post-Docs:

Dr. Joan CarvajalDr. 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 2004.

Ramon y Cajal Researcher:

Dra. M. Cinta Pujol

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.

MAT2002-04603-C05

Double tungstate crystals. Synthesis, characterisation and applications (DT-

CRYS).

STRP-505580-1.

Nanotechnologies, materials and processes (NMP-3). FP6 of EU.

© Francesc Díaz. October 2004.

Nd:YAGKTP

LASER Materials. Hosts and frecuency multipliers.

2pumping

Example of materials for doubling frecuency

Laser host Doubling frecuency Material.

© Francesc Díaz. October 2004.

Laser Radiation

Solid state laser

h STIMULATION

PHOTONh COLLECTION OF

COHERENT PHOTONS

© Francesc Díaz. October 2004.

Solid host

Active ion

KGW:RE

KYW:RE

KYbW:RE

KErW:RE

KLuW:RE

LASER MATERIALS (Bulk single crystals)

KRE(WO4)2 family

Monoclinic phase

Space group, C2/c

© Francesc Díaz. October 2004.

P200100219 International patent of FiCMA recently transferred to two companies

Monoclinic phase of KRE(WO4)2

• Space group, C2/c

Epitaxial layer of KYW:Yb on (010) faces of KYW substrate

MICRO AND NANO SINGLE CRYSTAL LAYERS

© Francesc Díaz. October 2004.

P200302881 National patent of FiCMA

(110)

Thin disc laser.

pumping

Laser layer

© Francesc Díaz. October 2004.

Laser emissionsubstrate

Preparation of Nanopowders of KREW by Sol-Gel

Sol-Gel : Pechini Method

KGdW Monoclinic Phase

© Francesc Díaz. October 2004.

Studies

Effect of particle size on RE3+ doping

© Francesc Díaz. October 2004.

Effect of particle size on spectroscopy of RE3+ 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 RE3+ spectroscopy and lasing

2 Patents

...EEEP 33

2210

IF SECOND ORDER:

...tSinEtSinEP 22020010

AS Sin2(t) = (1 - Cos(2t)) / 2, THEN IT RESULTS::

...22020010

2020 tCosEtSinEEP

• 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.

RTP

RTP:Nb

RTP:(Nb,Er)

RTP:(Nb,Yb)

NLO MATERIALS (Bulk single crystals)

© Francesc Díaz. October 2004.

RbTiOPO4 family. Orthorombic phase

Spacel group of simetry: Pna21

Orthorombic phase

Spacial group of simetry: Pna21

Fabrication of photonic crystals of the KTP family

1-D photonic crystals in PPRTP2-D photonic crystals in KTP

© Francesc Díaz. October 2004.

Studies

QPM Effect characterisation

© Francesc Díaz. October 2004.

3 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

Thank you

for your attention.

Tarragona, october 2004