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?ehá?ek, J. ; Stoklasa, Bohumil ; Koutný, Dominik ; Hradil, Zdenek ; Sánchez Soto, Luis Lorenzo | The American Physical Society | 2019-11-07We derive fundamental precision bounds for single-point axial localization. For Gaussian beams, this ultimate limit can be achieved with a single intensity scan, provided the camera is placed at one of two optimal transverse detection planes. He[...]texto impreso
Aiello, Andrea ; Paúr, Martin ; Stoklasa, Bohumil ; Hradil, Zdenek ; ?ehá?ek, Jaroslav ; Sánchez Soto, Luis Lorenzo | The Optical Society (OSA) | 2020-09-15We report the first, to the best of our knowledge, observation of concentrating paraxial beams of light in a linear nondispersive medium. We have generated this intriguing class of light beams, recently predicted by one of us, in both one- and t[...]texto impreso
Donohue, J. M. ; Ansari, V. ; ?ehá?ek, Jaroslav ; Hradil, Zdenek ; Stoklasa, Bohumil ; Paúr, Martin ; Sánchez Soto, Luis Lorenzo ; Silberhorn, C. | American Physical Society | 2018-08-27By projecting onto complex optical mode profiles, it is possible to estimate arbitrarily small separations between objects with quantum-limited precision, free of uncertainty arising from overlapping intensity profiles. Here we extend these tech[...]texto impreso
Paúr, Martin ; Stoklasa, Bohumil ; Grover, Jai ; Krzoc, Andrej ; Sánchez Soto, Luis Lorenzo ; Hradil, Zdenek ; ?ehá?ek, Jaroslav | Optical Society of America | 2018-09-25It 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. [...]texto impreso
?ehá?ek, Jaroslav ; Hradil, Zdenek ; Stoklasa, Bohumil ; Motka, Libor ; Sánchez Soto, Luis Lorenzo | Society of Photo-Optical Instrumentation Engineers (SPIE) | 2015Wavefront sensing is an advanced technology that enables the precise determination of the phase of a light field, a critical information for many applications, such as noncontact metrology, adaptive optics, and vision correction. Here, we reinte[...]
