TY - JOUR
T1 - Correlation functions in the presence of optical vortices
AU - Harkness, Graeme K.
AU - Lega, Joceline C.
AU - Oppo, Gian-Luca
PY - 1994/9/30
Y1 - 1994/9/30
N2 - We evaluate two-dimensional field and intensity correlation functions for the optical Ginzburg-Landau and laser equations in the presence of optical vortices. Configurations of rotating vortices, vortices superimposed on travelling waves and defect mediated turbulance are analysed and compared. Intensity correlations provide a qualitative indicator for the degree of disorder of spatio-temporal evolutions. For example, patterns with few rotating vortices have correlation lengths comparable to or larger than the transverse size of the system, while few vortices superimposed on travelling waves can generate weak turbulance.
AB - We evaluate two-dimensional field and intensity correlation functions for the optical Ginzburg-Landau and laser equations in the presence of optical vortices. Configurations of rotating vortices, vortices superimposed on travelling waves and defect mediated turbulance are analysed and compared. Intensity correlations provide a qualitative indicator for the degree of disorder of spatio-temporal evolutions. For example, patterns with few rotating vortices have correlation lengths comparable to or larger than the transverse size of the system, while few vortices superimposed on travelling waves can generate weak turbulance.
KW - Ginzburg-Landau equation
KW - optical vortices
KW - spatio-temporal evolutions
UR - http://www.scopus.com/inward/record.url?scp=0028486656&partnerID=8YFLogxK
U2 - 10.1016/0960-0779(94)90094-9
DO - 10.1016/0960-0779(94)90094-9
M3 - Article
AN - SCOPUS:0028486656
SN - 0960-0779
VL - 4
SP - 1519
EP - 1533
JO - Chaos, Solitons and Fractals
JF - Chaos, Solitons and Fractals
IS - 8-9
ER -