What is recorded here?
Segev, Crosignani, Yariv and Fischer described a spatial optical soliton in a photorefractive medium, where diffraction is balanced by a refractive-index pattern induced by interference among the beam’s spatial-frequency components. In their model a suitable beam profile can propagate without changing transverse shape, and the predicted shape is independent of absolute intensity under the stated idealized response.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
This is a theoretical prediction, not an experimental observation. The analysis assumes a monochromatic paraxial scalar field, selected crystal geometry and an applied field yielding approximately real coupling; the explicit sech profile comes from a restricted one-transverse-coordinate case and a truncated nonlocal expansion. The authors note that an arbitrary input does not necessarily evolve into the soliton and that small deviations persist rather than automatically decay. Real-material diffusion, gain, loss and noise can affect applicability; claimed intensity independence is within the modeled photorefractive regime.
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People and systems
Mordechai Segev; Bruno Crosignani; Amnon Yariv; Baruch Fischer
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.
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English catalogue narrative
A theory of photorefractive spatial optical solitons
Segev, Crosignani, Yariv and Fischer described a spatial optical soliton in a photorefractive medium, where diffraction is balanced by a refractive-index pattern induced by interference among the beam’s spatial-frequency components. In their model a suitable beam profile can propagate without changing transverse shape, and the predicted shape is independent of absolute intensity under the stated idealized response.
Scientific scope
This is a theoretical prediction, not an experimental observation. The analysis assumes a monochromatic paraxial scalar field, selected crystal geometry and an applied field yielding approximately real coupling; the explicit sech profile comes from a restricted one-transverse-coordinate case and a truncated nonlocal expansion. The authors note that an arbitrary input does not necessarily evolve into the soliton and that small deviations persist rather than automatically decay. Real-material diffusion, gain, loss and noise can affect applicability; claimed intensity independence is within the modeled photorefractive regime.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
Mordechai Segev; Bruno Crosignani; Amnon Yariv; Baruch Fischer
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.