Using Gaussian spectrum for holography display with femtosecond laser

Author

Le Thanh Bang, A. ; Sang-Keun, G.B. ; Pan, C.J. ; Lee, David K. ; Kim, E.N.

Author_Institution

Sch. of Electr. & Comput. Eng., Chungbuk Nat. Univ., Cheongju, South Korea

fYear

2012

fDate

2-6 July 2012

Firstpage

566

Lastpage

567

Abstract

Femtosecond laser is not monochromatic but exhibit a large spectrum. Due to their low coherence length, a reduction of parasitic fringes can be expected to reduce the optical noise. In this paper we will present in-line holography in the case of a pulse with a Gaussian spectrum is investigated analytically by using the steepest descent method. This method enables to calculate the intensity distribution of the diffraction field and fractional orders Fourier transform to reconstruct hologram with micro object.

Keywords

Fourier transforms; gradient methods; high-speed optical techniques; holographic displays; image reconstruction; laser beams; optical noise; Gaussian spectrum; coherence length; diffraction field; digital in-line holography; femtosecond laser; fractional orders Fourier transform; hologram reconstruction; holography display; intensity distribution; optical noise; parasitic fringes; steepest descent method; Charge coupled devices; Diffraction; Educational institutions; Holography; Image reconstruction; Laser beams; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Opto-Electronics and Communications Conference (OECC), 2012 17th

Conference_Location

Busan

ISSN

2166-8884

Print_ISBN

978-1-4673-0976-9

Electronic_ISBN

2166-8884

Type

conf

DOI

10.1109/OECC.2012.6276574

Filename

6276574