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1799 6
1800 1
1801 2
1802 5
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1804 1
1805 4
1806 1
1808 4
1809 2
1810 4
1811 5
1812 2
1813 1
1814 2
1815 1
1816 3
1818 5
1819 3
1821 1
1822 2
1823 2
1826 1
1827 4
1828 2
1829 1
1830 2
1835 1
1839 1
1840 1
1841 2
1842 2
1843 1
1844 4
1845 3
1846 3
1847 2
1848 4
1849 1
1850 4
1851 3
1852 3
1853 8
1854 1
1855 1
1856 4
1857 2
1858 2
1859 3
1860 2
1863 1
1864 2
1867 2
1868 1
1869 1
1870 2
1871 1
1872 2
1874 1
1875 2
1877 1
1879 2
1881 3
1882 1
1883 4
1884 7
1885 2
1887 3
1888 1
1890 1
1893 1
1897 2
1898 1
1903 1
1907 2
1915 2
1920 1
1924 1
1928 2
1930 1
1931 2
1933 1
1938 1
1941 1
1944 1
1945 2
1946 5
1947 3
1948 5
1949 7
1950 6
1951 5
1952 1
1953 4
1954 5
1955 1
1956 4
1957 4
1958 4
1959 1
1960 4
1961 5
1962 2
1963 3
1964 8
1965 9
1966 6
1967 8
1968 10
1969 6
1970 10
1971 7
1972 6
1973 18
1974 13
1975 37
1976 42
1977 26
1978 43
1979 37
1980 44
1981 33
1982 41
1983 44
1984 64
1985 83
1986 80
1987 81
1988 92
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1990 121
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2004 397
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2011 698
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2013 815
2014 912
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23,892 results

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Page 1
A critical appraisal of the singularity theorems.
Senovilla JMM. Senovilla JMM. Philos Trans A Math Phys Eng Sci. 2022 May 2;380(2222):20210174. doi: 10.1098/rsta.2021.0174. Epub 2022 Mar 14. Philos Trans A Math Phys Eng Sci. 2022. PMID: 35282689 Review.
The 2020 Nobel prize in Physics has revived the interest in the singularity theorems and, in particular, in the Penrose theorem published in 1965. In this short paper, I briefly review the main ideas behind the theorems and then proceed to an evaluation of their hypotheses …
The 2020 Nobel prize in Physics has revived the interest in the singularity theorems and, in particular, in the Penrose theorem publi …
Point singularity array with metasurfaces.
Lim SWD, Park JS, Kazakov D, Spägele CM, Dorrah AH, Meretska ML, Capasso F. Lim SWD, et al. Nat Commun. 2023 Jun 5;14(1):3237. doi: 10.1038/s41467-023-39072-6. Nat Commun. 2023. PMID: 37277345 Free PMC article.
Although 1D singular structures, like optical vortices, are common due to their robust topological properties, uncommon 0D (point) and 2D (sheet) singularities can be generated by wavefront-shaping devices like metasurfaces. ...We show that metasurface-enabled point …
Although 1D singular structures, like optical vortices, are common due to their robust topological properties, uncommon 0D (point) an …
Coherence singularity and evolution of partially coherent Bessel-Gaussian vortex beams.
Zhu J, Zhang H, Wang Z, Zhao X, Lu X, Cai Y, Zhao C. Zhu J, et al. Opt Express. 2023 Mar 13;31(6):9308-9318. doi: 10.1364/OE.483647. Opt Express. 2023. PMID: 37157503 Free article.
We theoretically and experimentally confirmed that during free-space propagation, the number of coherence singularities is equal to the magnitude of the TC. In contrast to the Laguerre-Gaussian vortex beam, this quantitative relationship only holds for the case with an off …
We theoretically and experimentally confirmed that during free-space propagation, the number of coherence singularities is equal to t …
Phase singularity diffusion.
Cheng X, Lockerman Y, Genack AZ. Cheng X, et al. Opt Lett. 2014 Jun 1;39(11):3348-51. doi: 10.1364/OL.39.003348. Opt Lett. 2014. PMID: 24876050
Phase singularities are observed to diffuse with a linear increase of the square displacement R2 with frequency shift. The product of the diffusion coefficient of phase singularities in the transmitted speckle pattern and the photon diffusion coefficient through the …
Phase singularities are observed to diffuse with a linear increase of the square displacement R2 with frequency shift. The product of …
Deep-learning-based recognition of multi-singularity structured light.
Wang H, Yang X, Liu Z, Pan J, Meng Y, Shi Z, Wan Z, Zhang H, Shen Y, Fu X, Liu Q. Wang H, et al. Nanophotonics. 2021 Oct 14;11(4):779-786. doi: 10.1515/nanoph-2021-0489. eCollection 2022 Jan. Nanophotonics. 2021. PMID: 39635381 Free PMC article.
However, the current detection schemes are limited to vortex beams with a simple phase singularity. The precise recognition of general structured light with multiple singularities remains elusive. ...The DL toolbox can also acquire phases of Laguerre-Gaussian (LG) m …
However, the current detection schemes are limited to vortex beams with a simple phase singularity. The precise recognition of genera …
Singularity analysis of 3-DOF planar parallel continuum robots with constant curvature links.
Lilge S, Wen K, Burgner-Kahrs J. Lilge S, et al. Front Robot AI. 2023 Jan 24;9:1082185. doi: 10.3389/frobt.2022.1082185. eCollection 2022. Front Robot AI. 2023. PMID: 36760825 Free PMC article.
This paper presents the singularity analysis of 3-DOF planar parallel continuum robots (PCR) with three identical legs. ...It is shown that while loci and occurrences of type II singularities are mostly analogous to conventional parallel kinematic mechanisms (PKM), …
This paper presents the singularity analysis of 3-DOF planar parallel continuum robots (PCR) with three identical legs. ...It is show …
Engineering phase and polarization singularity sheets.
Lim SWD, Park JS, Meretska ML, Dorrah AH, Capasso F. Lim SWD, et al. Nat Commun. 2021 Jul 7;12(1):4190. doi: 10.1038/s41467-021-24493-y. Nat Commun. 2021. PMID: 34234140 Free PMC article.
Optical phase singularities are zeros of a scalar light field. The most systematically studied class of singular fields is vortices: beams with helical wavefronts and a linear (1D) singularity along the optical axis. Beyond these common and stable 1D topologi …
Optical phase singularities are zeros of a scalar light field. The most systematically studied class of singular fields is vor …
Unconventional Singularity in Anti-Parity-Time Symmetric Cavity Magnonics.
Yang Y, Wang YP, Rao JW, Gui YS, Yao BM, Lu W, Hu CM. Yang Y, et al. Phys Rev Lett. 2020 Oct 2;125(14):147202. doi: 10.1103/PhysRevLett.125.147202. Phys Rev Lett. 2020. PMID: 33064512
By engineering an anti-parity-time (anti-PT) symmetric cavity magnonics system with precise eigenspace controllability, we observe two different singularities in the same system. One type of singularity, the exceptional point (EP), is produced by tuning the magnon d …
By engineering an anti-parity-time (anti-PT) symmetric cavity magnonics system with precise eigenspace controllability, we observe two diffe …
Transversal optical singularity induced precision measurement of step-nanostructures.
Dou X, Zhou J, Zhang Y, Min C, Pereira SF, Yuan X. Dou X, et al. Opt Express. 2023 Sep 25;31(20):32840-32848. doi: 10.1364/OE.500909. Opt Express. 2023. PMID: 37859077 Free article.
Optical singularities indicate zero-intensity points in space where parameters, such as phase, polarization, are undetermined. Vortex beams such as the Laguerre-Gaussian modes are characterized by a phase factor eilteta, and contain a phase singularity in the middle …
Optical singularities indicate zero-intensity points in space where parameters, such as phase, polarization, are undetermined. Vortex …
Excitons Enabled Topological Phase Singularity in a Single Atomic Layer.
Ma G, Shen W, Sanchez DS, Yu Y, Wang H, Sun L, Wang X, Hu C. Ma G, et al. ACS Nano. 2023 Sep 26;17(18):17751-17760. doi: 10.1021/acsnano.3c02478. Epub 2023 Sep 11. ACS Nano. 2023. PMID: 37695313
The nontrivial and rigorous Heaviside phase jump behavior of phase singularities (PSs) empowers exotic topological modes and widely divergent nature compared to neighboring points, which has attracted great attention in condensed matter physics as well as applications in p …
The nontrivial and rigorous Heaviside phase jump behavior of phase singularities (PSs) empowers exotic topological modes and widely d …
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