About the Authors
- Pablo Artal
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* E-mail: pablo@um.es
Affiliation Laboratorio de Óptica, Universidad de Murcia, Murcia, Spain
- Christina Schwarz
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Affiliation Laboratorio de Óptica, Universidad de Murcia, Murcia, Spain
- Carmen Cánovas
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a Current address: AMO, Groningen, The Netherlands
Affiliation Laboratorio de Óptica, Universidad de Murcia, Murcia, Spain
- Alejandro Mira-Agudelo
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b Current address: Instituto de Física, Universidad de Antioquia, Medellín, Colombia
Affiliation Laboratorio de Óptica, Universidad de Murcia, Murcia, Spain
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: PA. Performed the experiments: PA CS CC AMA. Analyzed the data: PA CS CC AMA. Contributed reagents/materials/analysis tools: PA CS CC AMA. Wrote the paper: PA.