Results 101 to 110 of about 3,266 (205)

Phase sensitive optical near-field mapping using frequency-shifted laser optical feedback interferometry

, 2008
International audienceThe use of laser optical feedback Imaging (LOFI) for scattering-type scanning near-field optical microscopy (sSNOM) is proposed and investigated.
Bruyant, Aurélien, Jacquin, Olivier, Lacot, Eric, Stefanon, Ilan, Lerondel, Gilles, Blaize, Sylvain, Bérenguier, Baptiste, Royer, Pascal, Hugon, Olivier   +8 more
core   +1 more source

Real-Time Depth Monitoring of Air-Film Cooling Holes in Turbine Blades via Coherent Imaging During Femtosecond Laser Machining

Photonics
Given the exceptional capabilities of femtosecond laser processing in achieving high-precision ablation for air-film cooling hole fabrication on turbine blades, it is imperative to develop an advanced monitoring methodology that enables real-time ...
Yi Yu, Ruijia Liu, Chenyu Xiao, Ping Xu
doaj   +1 more source

Non-Uniform Sampling Theory applied to Optical Feedback Interferometry for Displacement Sensors

, 2020
International audienceIn this paper, a method based on the non-uniform sampling theory is proposed to recover remote target's displacement from laser optical feedback interferometry (OFI) signals.
U. Zabit, A. Raghubanshi, F. Jayat, Bernal, Olivier, D, Zabit, U., Niakan, T., T. Bosch, O. D. Bernal, T. Niakan, Raghubanshi, A., Jayat, Francis, Bosch, Thierry   +11 more
core   +1 more source

Investigation of Wavelength Scanning Interferometry for Embedded Metrology

The tremendous growth in the manufacture of a wide range of deterministic and complex free form surfaces, has made surface metrology an essential part of the manufacturing process.
Muhamedsalih, Hussam
core  

Experimental comparison of autodyne and heterodyne laser interferometry using a Nd:YVO4 microchip laser

, 2011
International audienceUsing a Nd:YVO4 microchip laser with a relaxation frequency in the megahertz range, we have experimentally compared a heterodyne interferometer based on a Michelson configuration with an autodyne interferometer based on the laser ...
Jacquin, Olivier, Lacot, Eric, Glastre, Wilfried, Guillet de Chatellus, Hugues, Olivier Jacquin, Eric Lacot, Olivier Hugon, Hugon, Olivier, Hugues Guillet de Chatellus, Wilfried Glastre   +9 more
core   +1 more source

Optical Feedback Interferometry

, 2005
This chapter presents an overview of the self-mixing effect in lasers for sensing purposes. The basic theory of the self-mixing effect is presented for a weak feedback. The influence of a moderate and a strong feedback are then discussed before examining
Bès, Caroline, Scalise, Lorenzo, G. Plantier, T. Bosch, C. Bes, Plantier, Guy, Bosch, Thierry   +6 more
core  

Laser feedback interferometry with semiconductor lasers

, 2017
L'interferometria làser de realimentació, LFI per les seves sigles en anglès, està basada en l'efecte d'autobarreja, self-mixing. Aquest es produeix quan la llum emesa pel làser és reinjectada dins la cavitat d'aquest després de veure's reflectida sobre un objectiu.
openaire   +1 more source

Poster Sessions

HemaSphere, Volume 10, Issue S1, June 2026.
wiley   +1 more source

Publication Only

HemaSphere, Volume 10, Issue S1, June 2026.
wiley   +1 more source

Distributed feedback fiber laser strain sensors

, 2008
The distributed feedback (DFB) fiber laser strain sensor has demonstrated strain resolution comparable to that obtained from high-performance fiber-optic interferometry.
Flockhart, Gordon M.H., Kirkendall, C.K., Cranch, G.A.   +2 more
core   +1 more source