Designing diffractive optical elements is crucial for efficient development of THz techniques. Here. we consider paper structures and we analyze their advantages and disadvantages in fast prototyping. The discussion about using material parameters like refractive index and absorption coefficient in designing diffractive optical elements is shown. https://www.pomyslnaszycie.com/life-is-better-with-my-boys-womens-graphic-tee-ice-blue-online-now/