Difference between revisions of "Particle Detection B"
| Line 3: | Line 3: | ||
== To do == | == To do == | ||
| − | * | + | * Decide on date(s) for exam |
| − | * | + | * Feedback |
== Guidelines == | == Guidelines == | ||
| Line 18: | Line 18: | ||
** We will grade each set of lecture notes, and each group will get a total number of points that you divide between your group members. For example, we grade a set of lecture notes a 7, and the group receives a total of 21 points. If you decide that every group member did a fair share, you split the points equally. If you think one of your group members did put more effort into the notes, you come up with a different distribution (as long as the total remains 21). | ** We will grade each set of lecture notes, and each group will get a total number of points that you divide between your group members. For example, we grade a set of lecture notes a 7, and the group receives a total of 21 points. If you decide that every group member did a fair share, you split the points equally. If you think one of your group members did put more effort into the notes, you come up with a different distribution (as long as the total remains 21). | ||
** There will be in total six sets of lecture notes. You do not have to write notes on the last lecture (Sensing & Control). | ** There will be in total six sets of lecture notes. You do not have to write notes on the last lecture (Sensing & Control). | ||
| − | * Each student will present a topic in 10 minutes (max) on May 27 (?), followed by some questions. The topic will be assigned by us and you will get two questions on the topic you presented, and two questions on different topics | + | * Each student will present a topic in 10 minutes (max) on May 27 from 9:00-12:00 (or two sessions on May 26/27 or May 27/28?), followed by some questions. The topic will be assigned by us and you will get two questions on the topic you presented, and two questions on different topics |
* The notes will account for 60%, and the presentation & questions account for 40% of your grade. You will receive the average grade for your notes before the week of the presentation. | * The notes will account for 60%, and the presentation & questions account for 40% of your grade. You will receive the average grade for your notes before the week of the presentation. | ||
Revision as of 07:13, 15 May 2020
Put here all relevant material for students
To do
- Decide on date(s) for exam
- Feedback
Guidelines
Lecture format:
- Divide each lecture in 2 (or 4) topics,
- Ask the students to write lecture notes of 4-6 pages of a topic in groups of 3 students,
- Derivation of equations in an appendix
- A template of the lecture notes for each topic will be provided.
Exam:
- Your written lecture notes:
- We will grade each set of lecture notes, and each group will get a total number of points that you divide between your group members. For example, we grade a set of lecture notes a 7, and the group receives a total of 21 points. If you decide that every group member did a fair share, you split the points equally. If you think one of your group members did put more effort into the notes, you come up with a different distribution (as long as the total remains 21).
- There will be in total six sets of lecture notes. You do not have to write notes on the last lecture (Sensing & Control).
- Each student will present a topic in 10 minutes (max) on May 27 from 9:00-12:00 (or two sessions on May 26/27 or May 27/28?), followed by some questions. The topic will be assigned by us and you will get two questions on the topic you presented, and two questions on different topics
- The notes will account for 60%, and the presentation & questions account for 40% of your grade. You will receive the average grade for your notes before the week of the presentation.
Groups
Groups of 3 students each to work on the assignments.
- Group 1: Tjip, Leon, Alessia
- Group 2: Marjolein, Barbara, Nigel, Niels
- Group 3: Anastasis, João, Maricke
Here you can find the original notes and feedback on the notes: link
Presentations
The order of the presentations will be the same as in the table (and the lectures).
Student-topic table
Lectures
Lecture 1: Intro and Power Spectral Density
The Intro should contain (group 1):
- What do we measure with an interferometer?
- First watch Kip Thorne's lecture: https://surfdrive.surf.nl/files/index.php/s/hmCWcFxSrilUeZy
- Write notes according to slides 6 - 12: slides
- The effect of Gravitational Waves on test masses (mirrors)
- See this Saulson lecture, this topic is covered from about minute 45 onwards: https://www.youtube.com/watch?v=m4IKvv0AqAI&list=PL04QVxpjcnjgs5aJ-BN3CRiMhJNyB1Ekr&index=4
- You can also use Saulson Chapter 2: https://surfdrive.surf.nl/files/index.php/s/xATgIBO2OOEIM5o
- Write notes according to slide 18: slides
The PSD chapter should contain (group 2 & 3)
- Sensitivity curves - Power Spectral Densities
- Lecture Kip Thorne: https://surfdrive.surf.nl/files/index.php/s/5qrbQhf3foFNh5C
- Saulson Ch4: https://surfdrive.surf.nl/files/index.php/s/rGu64pFLNai2Ze1
- Blandford and Thorne section 6.4 (at the end of this page)
- Write notes according to slides 22 - 27: slides
Date to hand in assignment: Wednesday April 6
Lecture 2: Gaussian beam, Fabry-Perot cavities
The chapter ‘Gaussian beam’ should contain (group 3):
- definition and features of Gaussian beams (slides 2-12)
- Higher-order modes (slides 13-16)
The chapter ‘Optical cavities: fields amplitudes’ should contain (group 2):
- definition of optical cavity (slide 17)
- mathematical computations of the involved fields (slides 18-20, 22)
The chapter ‘Optical cavities: features and properties’ should contain (group 1):
- cavity features: FSR, HWHM, Finesse, etc. (slides 21, 23-25)
- mathematical computation of the stability criterion (slide 28)
All the material can be found in the SURFdrive folder at this |link
Date to hand in assignment: 15th April
Lecture 3: Interferometry (general, Michelson) and Interferometer for GW detection (power and signal recycling)
The chapter ‘Fabry-Perot cavity’ should contain (group 2):
- Frequency response of the cavity (slides 2-6)
The chapter ‘Interferometry’ should contain (group 2):
- Definition of interferometry (slide 7-8)
The chapter ‘Interferometers’ should contain (group 1):
- Different topologies of interferometers (slides 9-14)
- Details about Michelson interferometer (slide 15-19, 22)
The chapter ‘GW detectors’ should contain (group 3):
- Topology, power recycling configuration, signal recycling configuration (slides 20-25)
All the material can be found in the SURFdrive folder at this link
Date to hand in assignment: April 21st
Lecture 4: Low frequency noise: seismic and Newtonian noise, suspension systems
The chapter ‘Seismic Noise’ should contain (group 3):
- definition of Seismic noise
- technique for the reduction of seismic noise (free-falling IFO, damped harmonic oscillator, vibration isolation)
The chapter ‘Suspension system of Virgo’ should contain (group 2):
- description of the Virgo suspension system (Superattenuator, inverted pendulum, MultiSAS)
The chapter ‘Suspension system of LIGO’ should contain (group 1):
- description of the LIGO suspension system
All the material can be found in the SURFdrive folder at this link
Date to hand in assignment: April 28th
Lecture 5: Low to mid frequency noise: suspension wire and mirror thermal noise, coatings, monolithic suspensions
All the groups should study all the topics until the Fluctuation-Dissipation Theorem.
The chapter ‘Thermal noise of pendulum’ should contain (group 1):
- the simple harmonic oscillatior
- the features of the pendulum
- the pendulum thermal noise
The chapter ‘Thermal noise of substrate’ should contain (group 3):
- the thermal noise of continuous system
- different kinds of substrate thermal noise: Brownian thermal noise, thermo-elastic noise, thermo-refractive noise.
The chapter ‘Thermal noise of coating’ should contain (group 2):
- the thermal noise of continuous system
- why coating thermal noise is the dominant noise in the mirror thermal noise
All the material can be found in the SURFdrive folder at this link
Date to hand in assignment: May 8th
Lecture 6: Low to high frequency noise: quantum noise, laser (power), squeezing
All the groups should study the definition of Quantum Noise, Radiation Pressure Noise and Shot Noise.
The chapter ‘Quantum Noise ’ should contain (group 2):
- Radiation pressure noise
- Shot Noise
- Standard Quantum Limit
The chapter ‘The Ball on a Stick Picture’ should contain (group 1):
- Quadrature picture
- Ball on a Stick picture
The chapter ‘Squeezing’ should contain (group 3):
- Squeezed light injection
- Frequency dependent squeezing
All the material can be found in the SURFdrive folder at this link
Date to hand in assignment: May 20th
Lecture 7: Sensing & control and/or future detectors
Literature
APPLICATIONS OF CLASSICAL PHYSICS, 2012-2013 Version of Textbook by Roger D. Blandford and Kip S. Thorne:
For copyrighted material we use a password protected link to Surfdrive