RT Journal Article T1 Tempering Rayleigh's curse with PSF shaping A1 Paúr, Martin A1 Stoklasa, Bohumil A1 Grover, Jai A1 Krzoc, Andrej A1 Sánchez Soto, Luis Lorenzo A1 Hradil, Zdenek A1 Řeháček, Jaroslav AB It has been argued that, for a spatially invariant imaging system, the information one can gain about the separation of two incoherent point sources decays quadratically to zero with decreasing separation. The effect is termed Rayleigh's curse. Contrary to this belief, we identify a class of point-spread functions (PSFs) with a linear information decrease. Moreover, we show that any well-behaved symmetric PSF can be converted into such a form with a simple nonabsorbing signum filter. We experimentally demonstrate significant superresolution capabilities based on this idea. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. PB Optical Society of America SN 2334-2536 YR 2018 FD 2018-09-25 LK https://hdl.handle.net/20.500.14352/12952 UL https://hdl.handle.net/20.500.14352/12952 LA eng NO © 2018 Optical Society of America.Funding. Grantová Agentura Ceské Republiky (GACR) (18-04291S); The Palacký University (IGA_PrF_2018_003); European Space Agency (ESA) ARIADNA scheme; Ministerio de Economía y Competitividad (MINECO) (FIS2015-67963-P). NO Ministerio de Economia y Competitividad (MINECO) NO Grantova Agentura Ceske Republiky (GACR) NO Palacky University NO European Space Agency (ESA) ARIADNA scheme DS Docta Complutense RD 4 abr 2025