Using light-dependent resistors to detect rotation of petal beams

Abstract

We extend our investigation to determine whether a cheap light-dependent resistor (LDR) with an embedded serpentine pattern can detect the rotational shift of petal beams. Through numerical simulations, we demonstrate that the embedded geometry of the LDR enables the detection of these rotations. Additionally, we examined the response of the LDR to varying beam waists and topological charges. Our findings reveal that an optimal combination of these parameters is essential to improve the accuracy and reliability of beam rotation detection. This novel method offers a cost-effective solution that can be easily integrated into any twisted light interferometry setup.