1. Woodpile Photonic Crytals fabricated by Two-Photon Polymerisation Gaël Nardin Cours Photonic Crystals 2009

2. Woodpile Photonic Crystals

4. Outline Two-photon Polymerisation technique (2PP) Fabrication of woodpile photonic crystals Superprism effect Inversion Infiltration of Quantum Dots

5. Two-Photon Polymerisation (2PP) Not diffraction limited Practical resolution obtained : ~100nm on x-y plane 300nm along z direction J. Serbin et al, Optics Express 28, (2003)

6. Two-Photon Polymerisation (2PP) Resins: - SU-8 - Ormocer J. Serbin et al, Optics Express 28, (2003) n=~ 1.5

7. www.lzh.de C. Reinhardt et al, Optics Lett. 31, (2006)

8. J. Serbin et al., Optics Express 21 (2004)

9. disorder and imperfections within the fabricated crystal → Rayleigh scattering scaling as λ −4 Optical characterization J. Serbin et al., Optics Express 21 (2004)

10. J. Li et al., Optics Express 24 (2008)

11. Superprism effect J. Serbin et al., J. Appl. Phys 98 (2005) J. Serbin et al., Adv. Mat. 18 (2006)

12. Superprism effect J. Serbin et al., Optics Express 14 (2006)

13. Inversion Infiltration with TiO 2 J. Serbin et al., Optics Express 21 (2004)

14. Inversion J. Serbin et al., Optics Express 21 (2004) Infiltration with TiO 2 Infiltration with TiO 2 mixed with SiO 2 SU-8 TiO 2 TiO 2 & SiO 2 B. Jia et al., J. Appl. Phys 102 (2007)

15. Inversion J. Serbin et al., Optics Express 21 (2004) Infiltration with TiO 2 Infiltration with TiO 2 mixed with SiO 2 SU-8 TiO 2 TiO 2 & SiO 2 B. Jia et al., J. Appl. Phys 102 (2007) “almost completely reproducible”

16. Inversion Infiltration with TiO 2 mixed with SiO 2 SU-8 TiO 2 TiO 2 & SiO 2 B. Jia et al., J. Appl. Phys 102 (2007) n = 2.2 Measurement: Average on 18° to 41° with respect to the surface normal of the PC

17. Infiltration of Quantum Dots J. Li et al., Adv. Mat. 19 (2007) PbSe QDs

18. Infiltration of Quantum Dots J. Li et al., Adv. Mat. 19 (2007) Transmission of PC Bare QD emission

19. Infiltration of Quantum Dots J. Li et al., Adv. Mat. 19 (2007) QDs aloneQDs in PC “This work provides an important step towards controlling QD emission in the NIR wavelength range with 3D PCs, which could facilitate the exploration of advanced functionalities of the 3D PCs for active devices in telecommunications.”

20. Conclusions Technique puissante et rapide pour la réalisation de structures arbitraires 3D diélectriques Jolies images SEM Performances optiques limitées par le désordre Integration avec d’autres technologies difficile