Surpassing the Standard Quantum Limit for Optical Imaging Using Nonclassical Multimode Light

by: N Treps, U Andersen, B Buchler, PK Lam, A Maã®tre, HA Bachor, C Fabre

Physical Review Letters, Vol. 88, No. 20. (3 May 2002), 203601.

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Abstract

Using continuous wave superposition of spatial modes; we demonstrate experimentally displacement measurement of a light beam below the standard quantum limit. Multimode squeezed light is obtained by mixing a vacuum squeezed beam and a coherent beam that are spatially orthogonal. Although the resultant beam is not squeezed; it is shown to have strong internal spatial correlations. We show that the position of such a light beam can be measured using a split detector with an increased precision compared to a classical beam. This method can be used to improve the sensitivity of small displacement measurements.

@article{Treps-Andersen-Fabre-2002, abstract = {Using continuous wave superposition of spatial modes; we demonstrate experimentally displacement measurement of a light beam below the standard quantum limit. Multimode squeezed light is obtained by mixing a vacuum squeezed beam and a coherent beam that are spatially orthogonal. Although the resultant beam is not squeezed; it is shown to have strong internal spatial correlations. We show that the position of such a light beam can be measured using a split detector with an increased precision compared to a classical beam. This method can be used to improve the sensitivity of small displacement measurements.}, author = {Treps, N. and Andersen, U. and Buchler, B. and Lam, P. K. and Ma\~{a}®tre, A. and Bachor, H. A. and Fabre, C. }, citeulike-article-id = {797023}, doi = {10.1103/PhysRevLett.88.203601}, journal = {Physical Review Letters}, keywords = {laser\_pointer, quantum, spatial, squeezed}, month = {May}, number = {20}, pages = {203601+}, posted-at = {2006-11-13 23:32:27}, priority = {3}, publisher = {American Physical Society}, title = {Surpassing the Standard Quantum Limit for Optical Imaging Using Nonclassical Multimode Light}, url = {http://dx.doi.org/10.1103/PhysRevLett.88.203601}, volume = {88}, year = {2002} }

RIS record

TY - JOUR ID - Treps-Andersen-Fabre-2002 L3 - citeulike-article-id:797023 TI - Surpassing the Standard Quantum Limit for Optical Imaging Using Nonclassical Multimode Light JF - Physical Review Letters VL - 88 IS - 20 SP - 203601 PB - American Physical Society N2 - Using continuous wave superposition of spatial modes; we demonstrate experimentally displacement measurement of a light beam below the standard quantum limit. Multimode squeezed light is obtained by mixing a vacuum squeezed beam and a coherent beam that are spatially orthogonal. Although the resultant beam is not squeezed; it is shown to have strong internal spatial correlations. We show that the position of such a light beam can be measured using a split detector with an increased precision compared to a classical beam. This method can be used to improve the sensitivity of small displacement measurements. KW - laser_pointer KW - quantum KW - spatial KW - squeezed AU - Treps, N AU - Andersen, U AU - Buchler, B AU - Lam, PK AU - Maã®tre, A AU - Bachor, HA AU - Fabre, C PY - 2002/05/03/ UR - http://dx.doi.org/10.1103/PhysRevLett.88.203601 ER -

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