Nonlinear conversion of photon spin to photon orbital angular momentum

A relativistically intense, ultrashort laser pulse with purely spin angular momentum produces second-harmonic radiation with equal parts of both spin and orbital angular momentum when focused into a plasma. The orbital contribution is due to an azimuthal phase variation that arises in the nonlinear...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Optics letters 2009-11, Vol.34 (21), p.3280-3282
Hauptverfasser:	GORDON, D. F, HAFIZI, B, TING, A
Format:	Artikel
Sprache:	eng
Schlagworte:	Exact sciences and technology Frequency conversion harmonic generation, including high-order harmonic generation Fundamental areas of phenomenology (including applications) Nonlinear optics Optics Physics Ultrafast processes optical pulse generation and pulse compression
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A relativistically intense, ultrashort laser pulse with purely spin angular momentum produces second-harmonic radiation with equal parts of both spin and orbital angular momentum when focused into a plasma. The orbital contribution is due to an azimuthal phase variation that arises in the nonlinear current density. This phase variation is associated with the radial nonuniformity driven by ponderomotive blowout.
ISSN:	0146-9592 1539-4794
DOI:	10.1364/OL.34.003280