1. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 JRA - 6 VPHGs and Related Subjects Filippo Maria Zerbi… …on behalf of the JRA Team …on behalf of the JRA Team

2. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 Purpose of the JRA Breakthrough developments in the area of Volume phase Holographic Gratings Their use at IR wl (WP 1) Their use at UV wl (WP 4) Their use in non-traditional Configurations (WP 2) Non traditional fabrication Tech-s (WP 3) 4

3. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 Goals of the JRA WP 1 – Infrared VPHGs WP 2 – Non Traditional Configurations WP 3 – NonTraditional Fabrication Processes WP 4 – UV VPHGs 60 months – Science Grade High perf.s Cryo protos 18 months – Lab Grade Cryo Protos 60 months – Science Grade first non-DCG proto 18 months – Lab Grade first non-DCG proto 60 months – Ready for application innovative config.s 18 months – Lab level innovative demonstrators 60 months – Science Grade High perf.s UV dev.s 18 months – Lab grade UV dev.s DONE

4. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 Highlights 1 First IR Lab Grating exists

5. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 First double-pass UV Cross Disperser exists Highlight 2 …Omissis….. Reserved Information

6. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 Highlight 3 The first VPHG-based TF exists

7. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 Highlight 4 The First Polymer Grating Exists

8. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 How could they achieve all their milestones and deliver all the deliverables IN SPITE of the delayed cash flow ? Didn’t we assign to these guys too much money then ? Question NO YOU DIDN’T !!

9. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 Philosophy Adopted (Oil, Garlic and Paprika) Reagents were on-stock or borrowed (…stolen) Omissis – Reserved Information No Holography. direct replica of a Ronchi Grating TF realised with existing spare gratings TF tested with a modified commercial WebCam No cryo-tests on IR devices available yet Principles OK, Show Stopper none…. ……but Leftovers many

10. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 Leftovers Full warm and some cryo characterization of IR devices Calibrated Source-Coll-Camera-Detector system on the Optical Table for TF Measure Efficiency of the Ronchi Replica Assess the ghost problem theoretically and in existing protos Obtain the first “Holographic” Polymer Grating ETC. ETC.

11. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 Next Steps on the Roadmap 1 Toward a Science Grade IR grating Toward a UV Science Grade Cross-Disperser Cryo Tests outcome is crucialCryo Tests outcome is crucial How does the efficiency or the WF changes ?How does the efficiency or the WF changes ? Can we drive the changes by design ?Can we drive the changes by design ? Obtain a Complete Device and test itObtain a Complete Device and test it Monitor materials and interfaces lossesMonitor materials and interfaces losses Optimize the manufacturing processOptimize the manufacturing process Gelatine does NOT work well at blue UVGelatine does NOT work well at blue UV Alternatives ?Alternatives ? Trial and Error – Many VPHGs Entirely new Issue

12. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 Next Steps on the Roadmap 2 Toward a Science Grade non-traditional device (e.g. TF) Toward a Science Grade Polymer-based VPHG Polymer Optimization (again and again)Polymer Optimization (again and again) High Precision Deposition (INTERCAST)High Precision Deposition (INTERCAST) Hologram versus Hologram ReplicaHologram versus Hologram Replica Control over efficiency and wavefrontControl over efficiency and wavefront Specific VPHSpecific VPH Easy to handle Mechanical. AssemblyEasy to handle Mechanical. Assembly Astronomical useful “zoology”Astronomical useful “zoology” Why not to use polymer gratings (Synergy)Why not to use polymer gratings (Synergy)

13. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 New Issues The High Resolution Regime Blaze Extender Configurations Cryo Polymers Echelles ?Echelles ? IR-High Res. (R=5000,20000)IR-High Res. (R=5000,20000) Stacking and Packaging.Stacking and Packaging. Polymer VPHGs are great in IR. Are they Cryo ?Polymer VPHGs are great in IR. Are they Cryo ? Can we make a cryo family of them ?Can we make a cryo family of them ? Explore ways to scan or cover the superbalze.Explore ways to scan or cover the superbalze. Alternative to DCG in the UV

14. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 Plot of future activities Leftovers0405060708Roadmp New Issues Design and parts Assembling Testing

15. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 The original working Hp 600 600 k€ “Traditional” Prototypes 240240 k€ Travel Cost 120480 k€ Polymer Devices 100140 k€ Manuf./Test Infrastructures 140 0 k€ Didn’t we assign too much money to these people ? None of the “New Issues” is budgeted 2 PM/yr + 1 board/yr + Some “Intertravel” It is 24 trips/yr -- for 18 “key persons” [(J,H,K,UV1,UV2,UV3),4*TF]*2 = 32 unit Each costs 5-10 K€ depending on the type Let’s take an average (320+160)/2=240 1g of polymer is 1 K You need 5 g/test per specie Then substrate, then casting/coating, etc. -- 0.2 g/grating needed A laser is 25 k€ An IR Laboratory detector is 25 K€ A good dewar is 25 K€ Etc. Etc.

16. Filippo Maria Zerbi - Executive Board Leiden 20/09/05 Conclusions JRA activity is proceeding along the path and in scheduleJRA activity is proceeding along the path and in schedule Important synergies between partners have been createdImportant synergies between partners have been created Synergies with other JRAs are starting (via KTN)Synergies with other JRAs are starting (via KTN) New Ideas are coming upNew Ideas are coming up Industry interest is kept and enhancedIndustry interest is kept and enhanced Working princples are testedWorking princples are tested Progressively higher quality products are deliveredProgressively higher quality products are delivered …..We would like to keep on going