Quantum limits in the measurement of very small displacements in optical images

@article{Fabre-Fouet-Maitre-2000, abstract = {We consider the problem of the measurement of very small displacements in the transverse plane of an optical image with a split photodetector. We show that the standard quantum limit for such a measurement, which is equal to the diffraction limit divided by the square root of the number of photons used in the measurement, cannot be overcome by use of ordinary single-mode squeezed light. We give the form of possible multimode nonclassical states of light, enabling us to enhance by orders of magnitude the resolution of such a measurement beyond the standard quantum limit.}, author = {Fabre, C. and Fouet, J. B. and Ma\^{i}tre, A. }, citeulike-article-id = {1428867}, journal = {Optics Letters}, keywords = {laser\_pointer}, number = {1}, pages = {76--78}, posted-at = {2007-07-02 15:40:08}, priority = {0}, title = {Quantum limits in the measurement of very small displacements in optical images}, volume = {25}, year = {2000} }

TY - JOUR ID - Fabre-Fouet-Maitre-2000 L3 - citeulike-article-id:1428867 TI - Quantum limits in the measurement of very small displacements in optical images JF - Optics Letters VL - 25 IS - 1 SP - 76 EP - 78 N2 - We consider the problem of the measurement of very small displacements in the transverse plane of an optical image with a split photodetector. We show that the standard quantum limit for such a measurement, which is equal to the diffraction limit divided by the square root of the number of photons used in the measurement, cannot be overcome by use of ordinary single-mode squeezed light. We give the form of possible multimode nonclassical states of light, enabling us to enhance by orders of magnitude the resolution of such a measurement beyond the standard quantum limit. KW - laser_pointer AU - Fabre, C AU - Fouet, JB AU - Maître, A PY - 2000/// ER -