TY - JOUR
T1 - Spectral Anomalies at Wave-Front Dislocations
AU - Popescu, G.
AU - Dogariu, A.
PY - 2002
Y1 - 2002
N2 - In a recent Letter, Gbur, Visser, and Wolf [Phys. Rev. Lett. 88, 013901 (2002)] predict that remarkable spectral changes can take place in the neighborhood of phase singularities of a diffracted focused wave. We report here the experimental observation of this anomalous spectral behavior and show that this is a general characteristic of optical vortices. Using a high-resolution interferometric technique, we are able to measure directly both the spectral intensity distribution and the spectral phase at the singular points of optical waves.
AB - In a recent Letter, Gbur, Visser, and Wolf [Phys. Rev. Lett. 88, 013901 (2002)] predict that remarkable spectral changes can take place in the neighborhood of phase singularities of a diffracted focused wave. We report here the experimental observation of this anomalous spectral behavior and show that this is a general characteristic of optical vortices. Using a high-resolution interferometric technique, we are able to measure directly both the spectral intensity distribution and the spectral phase at the singular points of optical waves.
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U2 - 10.1103/PhysRevLett.88.183902
DO - 10.1103/PhysRevLett.88.183902
M3 - Article
C2 - 12005684
AN - SCOPUS:85038326038
SN - 0031-9007
VL - 88
SP - 4
JO - Physical review letters
JF - Physical review letters
IS - 18
ER -