Passively-coupled, low-coherence interferometric duct profiling with an astigmatism-corrected conical mirror

Fig 5 Excel file with experimental beam-waist radii (cone mirror alone) and numbers from Zemax model. €œData fig 5€ (one worksheet). Fig 6 Excel file €œData fig 6€ (one worksheet) with evolution of beam-waists in z, from Zemax model for combined cone mirror and custom lens. Also includes data for other working distances, as mentioned in paragraph 3 of p 10. Fig 7 Excel file with experimental beam-waist radii (cone and lens) and numbers from Zemax model €œData fig 7€ (one worksheet). Fig 11 Excel file with experimental and calculated data for fibre centroid positions in arc array. Also contains data for relative positions of probe and arc array centre axes, before and after adjustment. €œData fig 11€ (three worksheets). Fig 12 Excel file with experimental beam radii data for complete probe, with and without custom lens. €œData fig 12€ (one worksheet). Fig 14 Excel file with experimental data and calculated fits, for surface depth measurements using the complete probe in experimental tube-section samples. €œData fig 14€ (four worksheets).