L1500052-v1

Thermal Noise Workshop Agenda (draft 2015-03-26)

Tuesday: 09:00-10:30	Session A: Thermal noise solutions adopted in 2G detectors (aLIGO, aAdV) 
Targets: very short term upgrades? 
- 20 min talk on Advanced detectors solutions for low thermal noise suspensions:  o Current solutions and their limitations 
o Short term upgrades 
o Open questions 
 
- 20 min talk on Advanced detectors solutions for low thermal noise test masses: o Current solutions and their limitations 
o Short term upgrades 
o Open questions 
 
Discussion on performances, limits and possible small improvements

Tuesday: 11:00-12:30	Session B: Thermal noise modelling
Targets: is our model of the thermal noise complete? Are Non-Equilibrium effects significant?
- 20 min talk on modelling the thermal noise: o Current models and their implementation in GWINC
o Limitations and possible improvements
o Open questions

- 20 min talk on thermal noise and Non-Equilibrium effects: o What's that?
o Why it does matter?
o What we need to know?

- 20 min of bottom-up talk?
- Discussion

Tuesday: 16:00-18:00	Session C: Cryogenics and materials
Target: cryogenic detector, where we are and what are the needed R&D?

- 20 min talk on Cryogenic interferometer technologies: o Operative temperature: 110K or 10/20K?
o Cooling technologies vs cooling time
o Status of the art and needed developments
o Open questions

- 20 min talk on Materials for suspensions and test masses in a cryogenic detector o Are we able to realize a cryo interferometer?
o Is really silicon an alternative to sapphire (feasibility, noises)
o Open question

- 20 min talk on Optical Absorption on substrates: o What we know about optical absorption in crystalline test masses?

- 20 min Bottom-up talk
- Discussion

Wednesday: 09:00-10:30	Session D
D.1) To be less sensitive to the thermal noise: Optical solutions
Targets: are flatter beams a possible solution?
- 20 min talk on High order mode beams o Status of the research, last achievements
o Open questions and future directions

- 20 min discussion

D.2) Coatings:
Targets: Do we have valid solutions for the HR coatings in future detectors? What are the technical / engineering challenges e.g. associated with larger mirrors?
- 20 min Review talk on the status of the art and known limitations
- Discussion

Wednesday: 16:00-17:30	Session E: Coatings (cont.)
- Bottom-up talk on coatings
- Discussion

Wednesday: 18:00-19:00	Session F: Summaries
- Summarizing ....
- Preparation of a R&D white book: what is progressing and what is needed to progress
- Planning