Pulsed multicolor digital holography using hydrogen Raman shifter

Authors

Percival F. Almoro ⋅ PH National Institute of Physics, University of the Philippines Diliman
Marilou M. Cadatal ⋅ PH National Institute of Physics, University of the Philippines Diliman
Fema A. Daquiado ⋅ PH National Institute of Physics, University of the Philippines Diliman
Wilson O. Garcia ⋅ PH National Institute of Physics, University of the Philippines Diliman
Caesar A. Saloma ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

For the first time, a hydrogen Raman shifter is used as a light source for pulsed multicolor digital holography. To generate a pulsed white light laser source, the Raman shifter (200 psi) is pumped by a 355 nm Nd:YAG pulsed laser. The multiple wavelength Raman output beam is initially dispersed by a prism and the Stokes lines: 415.9nm (blue), 502.9nm (green), and 635.9nm (red), are selected. Each of the RGB lines is passed through a beam conditioning system to improve beam quality and to equalize the RGB intensities. The RGB lines are then recombined to become the new nanosecond holographic white light source. As a demonstration of the technique, a negative resolution target with color filters is illuminated by the Raman shifter. Three holograms generated by the RGB lines are recorded on a charge-coupled device (CCD) camera, reconstructed in the computer and unified to achieve full-color final image.

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Issue

2003: Proceedings of the 21st Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2003-3C-02

Section

Optics and Photonics

Published

2003-10-22

How to Cite

[1]

PF Almoro, MM Cadatal, FA Daquiado, WO Garcia, and CA Saloma, Pulsed multicolor digital holography using hydrogen Raman shifter, Proceedings of the Samahang Pisika ng Pilipinas 21, SPP-2003-3C-02 (2003). URL: https://proceedings.spp-online.org/article/view/SPP-2003-3C-02.