Qiuliang Ye

4 Questions 13 Answers 0 Followers

Questions related from Qiuliang Ye

Can we only capture one diffraction order in light modulator?

Obviously, the spatial light modulator (SLM) and digital micromirror device (DMD) is diffration gratings. Therefore there would be multiple diffraction orders of the created images. Here I want...

07 May 2020 705 8 View

Which defocus formula in Fourier Plane is correct?

Hi everyone. I am using a coherent source to illuminate the sample and collect the intensity of Fourier plane via CCD. The formula is |F{x}|.^2, where F denotes the Fourier transform. And I hope...

10 January 2020 8,977 6 View

How to implement the Gaussian matrix with optical instrument?

Hi everyone. I konw Gaussian matrix in is very useful in mathematics. But in some applications, we need to transfer the mathematical formula and implement it into the real world. Talking about...

04 April 2019 7,912 7 View

Why no rectangular (square) apertures sold (optics)?

Hi everyone. I want to buy rectangular aperture as the beam stop. However, all the apertures sold in the market are circular. I am curious why there is no other shape. Could anyone tell me where...

01 January 1970 2,986 3 View