Possible research topics for graduate students and postdocs
Contents
- Possible research topics for graduate students and postdocs
Main Interferometer related
Vibration isolation related
Cryogenics related
Thermal Noise
- Mechanical Q measurement (sapphire fiber, blade spring, bonding, coatings, ...)
- Evaluation of sapphire suspension thermal noise
- Evaluation of thermal noise of integrated cryo-payload
- Design of new sapphire blade spring
- Measurement of violin mode of sapphire suspension fibers and their subtraction from data
Cryogenics
- Development of high-sensitivity local displacement sensor at low temperature
- Development of frosting removal on mirror by using CO2 laser or heater
- Evaluation of low-magnetism black-coating (optical absorption at 1064nm ...)
- Optical absorption measurement of sapphire mirror at low temperature
- Development of non-contact temperature measurement method of mirror
Physical Environment Monitoring related
Underground environment evaluation
- New environmental monitors
- Seismometer analysis
- Magnetometer analysis
- Microphone analysis
- Newtonian noise evaluation
Interferometer noise evaluation
- New environmental monitors
- Power line monitor, GND survey
- Correlation/coherent analysis (Close to commissioning)
Glitch, line noise evaluation (Close to DetChar)
- Feedforward, offline noise subtraction
- PEM injection test
== VIS（Vibration Isolation System）== === Sensor Development===
- Development of new local sensor with high-sensitivity, wide-range and cryogenic use, replaced from OSEM and photo-sensor
- Development of new local sensor by using optical comb technology
- Development of inertial sensor (seismometer, accelerometer)
Performance Improvement
- Optimization of control, development of active filter
- Control of low frequency range by using GIF
- Improvement of lower frequency performance of IP
- Development of light and easy maintenance GAS filter
Calibration related
DAC/CAL (Sftware)
- Timing correction
- Line-noise subtraction
- Optimization of avoidance method of dynamic range problem
- Improvement of self-diagnosis of pipe-line
- Improvement of interface of pipe-line, filter, injection and so on
=== Commissioning/CAL (Hardware)===
- PCAL
Higher performance of calibration of integrating sphere (5% -> <1%)
- Mitigation of scattered light(in O4)
- Stabilization of Pcal laser
- Correction of temperature dependence of integrating sphere
- Evaluation of integrating sphere like injection angle of laser and opening size (in O5)
- Development of Gcal
Data Management related
Input & Output Optics related
Laser related
Auxiliary Optics related
Digital System related
Detector Characterization related