Coherent microscopy by laser optical feedback imaging (LOFI) technique

Olivier Hugon 1, * Fadwa Joud 2 Eric Lacot 3 Olivier Jacquin 1 Hugues Guillet de Chatellus 1
* Corresponding author
1 OPTIMA
LIPhy - Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères]
3 LIPhy-OPTIMA
LIPhy - Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères]
Abstract : The application of the non conventional imaging technique LOFI (Laser Optical Feedback Imaging) to coherent microscopy is presented. This simple and efficient technique using frequency-shifted optical feedback needs the sample to be scanned in order to obtain an image. The effects on magnitude and phase signals such as vignetting and field curvature occasioned by the scanning with galvanometric mirrors are discussed. A simple monitoring method based on phase images is proposed to find the optimal position of the scanner. Finally, some experimental results illustrating this technique are presented.
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  • HAL Id : hal-00709759, version 1
  • ARXIV : 1206.4264

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Olivier Hugon, Fadwa Joud, Eric Lacot, Olivier Jacquin, Hugues Guillet de Chatellus. Coherent microscopy by laser optical feedback imaging (LOFI) technique. Ultramicroscopy, Elsevier, 2011, 111, pp.1557-1563. ⟨hal-00709759⟩

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