TY - CHAP AU - Martínez Herrero, Rosario AU - Maluenda, David AU - Juvells, Ignasi AU - Carnicer, Artur PY - 2019 DO - 10.1109/WIO.2018.8643545 SN - 978-1-5386-6013-3 UR - https://hdl.handle.net/20.500.14352/13995 AB - According to intensity consideration along the propagation axis, we derived mathematical conditions for a family of modulating functions able to produce needles of arbitrary length, sub-wavelength width and almost constant irradiance. These functions... LA - eng PB - IEEE Computer Society KW - Longitudinally polarized-light KW - Depth KW - Filter KW - Focus KW - Lens KW - Spot KW - Light needles KW - High numerical aperture optical systems KW - Polarization TI - Considerations on the design of diffractive optical needles TY - book part ER -