Details

Autor(en) / Beteiligte

• Berkhout, Gregorius C G
• Lavery, Martin P J
• Courtial, Johannes
• Beijersbergen, Marco W
• Padgett, Miles J

Titel

Efficient sorting of orbital angular momentum states of light

Ist Teil von

• Physical review letters, 2010-10, Vol.105 (15), p.153601-153601, Article 153601

Ort / Verlag

United States

Erscheinungsjahr

2010

Quelle

PROLA

Beschreibungen/Notizen

• We present a method to efficiently sort orbital angular momentum (OAM) states of light using two static optical elements. The optical elements perform a Cartesian to log-polar coordinate transformation, converting the helically phased light beam corresponding to OAM states into a beam with a transverse phase gradient. A subsequent lens then focuses each input OAM state to a different lateral position. We demonstrate the concept experimentally by using two spatial light modulators to create the desired optical elements, applying it to the separation of eleven OAM states.