Thomas Knight

3 Questions 2 Answers 0 Followers

Questions related from Thomas Knight

Why can't I detect the plasmon resonance angle with water?

I am trying to measure the plasmon resonance angle of gold film and pure water using the Kretschmann configuration and a 633nm laser. Without flowing water over the gold, I can detect a clear...

11 July 2024 4,704 3 View

How to measure Goos-Hanchen shift using lock-in amplifier?

I am trying to measure the Goos-Hanchen shift of a 632.8nm laser using the Kretschmann configuration. The polarization state is modulated by an optical chopper. The two states are coupled into a...

19 December 2023 1,639 2 View

How to reduce noise and improve stability of fibre optic cable output?

I am working on an optical setup monitoring the power output of a 633nm 1.2mW laser. The light is polarised before entering a polarisation maintaining optical fibre in a thorlabs fiber launch...

14 November 2023 4,952 2 View