20-22 May 2015
Asia/Bangkok timezone
The Centennial Celebration of General Relativity Theory and 80 Years of Thai Physics Graduate

Single Beam Digital Holography using Total Internal Reflection

20 May 2015, 14:00
3h 30m
Board: OPT-01
Poster presentation Optics, Non-linear optics, Laser Physics, Ultrafast Phenomena Poster-1

Speaker

Dr Suwan Plaipichit (Department of Applied Physics, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand)

Description

The technique for recording digital hologram, using single beam based on Total Internal Reflection (TIR), has been proposed. The laser diode with wavelength of 635 nm has been used as the light source. First, a positive resolution test target with a line width of 200 um has been used as the object to compare two configurations (transmission and reflection)of digital in-line holography (DIH). From experimental results, the reconstructed digital hologram of reflected DIH (RDIH) is perfect as transmitted DIH(TDIH). The equilateral triangle prism has been used to produce TIR light and fingerprint has been selected as the sample. The configuration, applied in this TIR technique, is the same as RDIH one measured from the positive resolution test target. The results show that the reconstructed digital hologram of fingerprint provides sharper patterns than the recorded digital hologram.

Primary author

Dr Suwan Plaipichit (Department of Applied Physics, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand)

Co-author

Dr Prathan Buranasiri (Department of Physics, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand)

Presentation Materials

There are no materials yet.
Your browser is out of date!

If you are using Internet Explorer, please use Firefox, Chrome or Edge instead.

Otherwise, please update your browser to the latest version to use Indico without problems.

×