KPF Echelle Grating
Table of Contents:
Final Report
Fabrication Process
Phase 3: Replication
Second efficiency measurement run
Mosaic Size
"the ruled area for each half is 204mm x 409mm, and the center gap is 15mm"
Blaze Angle Comments
Description | File |
|---|---|
Email from Sarah |
Wavefront and Schedule Comments
Description | File |
|---|---|
Email from Sarah | |
Wavefront Maps | Berkeley center-1.pdf |
Efficiency Results
Description | File | |
|---|---|---|
Email from Sarah | Gentlemen, Attached, please find the efficiency results for the mosaic you ordered. For some Thank you and best regards, |
Phase 2: Submaster Alignment
Description | File |
|---|---|
Email from Sarah | Gentlemen, We are moving along with the mosaic and have completed the substrate alignment. An invoice will be issued for alignment within one week. Please let me know if you have any questions. Thank you and best regards, |
Alignment Report |
Order Number Change
Description | File |
|---|---|
From Sarah (September 28, 2017): Gentlemen, We currently have more than one mosaic project in process and as a result, Please let me know if you have any questions. Thank you and best regards, |
Phase 1: Substrate
Description | File |
|---|---|
Email from Sarah | Gentlemen, We received the mosaic substrate in-house and it has been inspected and An invoice will be issued for the substrate within one week. Thank you and best regards, |
Substrate Inspection Document | |
Zygo Certification of Compliance | |
Substrate Drawing | |
Shipping Crate |  |
Purchasing
Technical Considerations Related to Substrate Choice
Zerodur phase change and CTE effects
Echelle Zerodur choice considerations correct CTE.pdf
Echelle Zerodur choice considerations correct CTE.pptx
Spatial Resolution of Mosaic
Check of echelle spatial resolution spec within KPF (impact on crosstalk):
Notes sent to RGL to clarify their spatial resolution spec (this is a term in our cross-talk analysis)
Clarification on Echelle Spatial Resolution Spec.pdf
Clarification on Echelle Spatial Resolution Spec.pptx
Response by RGL to above questions:
Echelle Order Finalization Topics
(from August 12, 2014 weekly meeting)
Our requested specs
MR263 Latest Quote
Quote Date: September 9th, 2016
Quote Date: December 7th, 2015
SSL Sole-source Purchasing Form
Schott Quote for Echelle Substrate Only (Class 0 Extreme)
Grating Performance
Refresher on grating masters
MR263 = new master
MR160 = old master (now discontinued)
Penn State Echelle - Final RGL Report
Richardson R4 Mosaic Design Standards
(Sarah admitted this was an internal document she wasn't supposed to share)
MR263 Information
Cosmetic map: | |
Sub-aperture wavefront interferogram |
Efficiency Loss Due to Gap Size and Ruled Width
MR263 Ghost and Scatter Plots
MR263 Efficiency Plots
Order | Grating | File | Note |
|---|---|---|---|
77 | MR263-1-3-1 | | From Sarah: "Please note that this grating has a Protected Silver coating, so results with an aluminum or gold coating will differ. Protected silver is NOT an option for the mosaic as we do not have the means to apply this coating type." |
88 | MR263-1-1-1 | | |
102 | MR263-1-1-1 | | |
123 | MR263-1-1-1 | | |
154 | MR263-1-1-1 | |