A spectral distortion correction method for an imaging spectrometer

Machihin, Alexander; Пожар, В. Э.

doi:10.1134/s0020441209060165

Cited by 14 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The chromatic shift of image within the entire working spectral range dλ and the full field of view does not exceed about a half pixel, which makes the spatial and spectral calibration of the filter redundant. Thus, data processing is significantly simplified, and the processing time is considerably reduced [9,10].…”

Section: Methodsmentioning

confidence: 99%

Full-field optical coherence microscopy based on acousto-optic filtration of interference images

2015

Self Cite

View full text Add to dashboard Cite

The problem of three-dimensional near-surface imaging of microscopic structures is discussed. A new scheme of optical coherence microscope with detection in the spectral domain is proposed. It is based on a broadband light source and filtration of interference images by a tunable acousto-optic imaging filter placed in the detection channel. The applicability of the scheme for analyzing depth distributions of object properties is experimentally demonstrated.

show abstract

Section: Methodsmentioning

confidence: 99%

Full-field optical coherence microscopy based on acousto-optic filtration of interference images

2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…This AOTF provides spectral image drift less than 1 pixel within the whole field of view in the spectral range 800-900 nm. Such a negligible drift makes the image correction and any additional spatial and spectral AOTF calibration unnecessary [17]. As AOTF 6 is placed in parallel beams, there is no need in refocusing during the spectral scanning.…”

Section: Techniquementioning

confidence: 99%

Imaging-AOTF-based full-field spectral-domain optical coherence tomography

et al. 2015

View full text Add to dashboard Cite

A technique for spectral filtration of interference images in full-field optical coherence tomography is proposed, implemented and tested. It is based on the spectral selection of light in the registration channel of the interferometer by imaging acousto-optic tunable filter. It is demonstrated that the diffraction of two interfering optical beams via the same ultrasound wave does not destruct the coherence. This new technique, which can be named tunable-imaging-filter-based full-field spectral-domain optical coherence tomography (TIF FF SD OCT), is applicable for 3D surface and inner structure visualization of optically inhomogeneous biomedical objects with moderate spectral, lateral and axial resolution, however with rather high speed.

show abstract

“…10 That is why for spectral images matching, an additional correction procedure must be applied that complicates the analysis and makes it time-consuming and less reliable. 11 Another problem concerns the optical coupling between the endoscope ocular and the AOTF entrance pupil. The FOV and the light diameter of AOTFs di®er signi¯cantly from endoscopes' ones.…”

Section: Introductionmentioning

confidence: 99%

Double-AOTF-based aberration-free spectral imaging endoscopic system for biomedical applications

Мачихин

Пожар

Batshev

2015

J. Innov. Opt. Health Sci.

View full text Add to dashboard Cite

The problem of in vivo photoluminescence diagnostics of the tissues accessible by endoscopes is discussed. The spectral imaging module attachable to conventional rigid and°exible medical endoscopes is developed and described. It is based on a double acousto-optical tunable¯lter (AOTF) and a specialized optical coupling system. The module provides wide¯eld of view (FOV), absence of image distortions, random spectral access, fast spectral image acquisition at any wavelength in the visible range and accurate measurement of re°ectance spectrum in each pixel of the image. Images of typical biomedical samples are presented and discussed. Their spectra are compared to the reference data.

show abstract

A spectral distortion correction method for an imaging spectrometer

Cited by 14 publications

References 3 publications

Full-field optical coherence microscopy based on acousto-optic filtration of interference images

Full-field optical coherence microscopy based on acousto-optic filtration of interference images

Imaging-AOTF-based full-field spectral-domain optical coherence tomography

Double-AOTF-based aberration-free spectral imaging endoscopic system for biomedical applications

Contact Info

Product

Resources

About