Femtosecond laser direct written computer generated holograms

Author

Berlich, R. ; Nolte, S. ; Richardson, M.

Author_Institution

Inst. of Appl. Phys., Friedrich-Schiller-Univ. Jena, Jena, Germany

fYear

2011

fDate

22-26 May 2011

Firstpage

1

Lastpage

1

Abstract

In this paper we present how these volumetric CGHs can be realized using the FLDW technique in common borosilicate glass. For the design an Iterative Fourier Transform Algorithm (IFTA) (Gerchberg and Saxton, 1972) was applied, providing the required phase information of the aimed hologram. In order to convert this information most efficiently into a FLDW refractive index distribution, initially the characteristics of the femtosecond laser modified region such as the dimensions and the amount of induced refractive index were investigated. A maximum amount of 2.6·10^-3 with a modification diameter of 5μm was achieved.

Keywords

Fourier transforms; computer-generated holography; iterative methods; laser materials processing; optical fabrication; refractive index; FLDW refractive index distribution; FLDW technique; common borosilicate glass; femtosecond laser direct written computer generated holograms; femtosecond laser modified region; induced refractive index; iterative Fourier transform algorithm; phase information; size 5 mum; Charge coupled devices; Multiplexing; Optical refraction; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference

Conference_Location

Munich

ISSN

Pending

Print_ISBN

978-1-4577-0533-5

Electronic_ISBN

Pending

Type

conf

DOI

10.1109/CLEOE.2011.5943330

Filename

5943330