2013
Dierck
Hillmann,
Gesa
Franke,
Laura
Hinkel,
Tim
Bonin,
Peter
Koch, and
Gereon
Hüttmann,
Off-axis full-field swept-source optical coherence tomography using holographic refocusing, pp. 857104-857104, 2013.
Off-axis full-field swept-source optical coherence tomography using holographic refocusing, pp. 857104-857104, 2013.
DOI: | 10.1117/12.2006436 |
File: | 12.2006436 |
Bibtex: | @article{Hillmann2013, author = {Hillmann, Dierck and Franke, Gesa and Hinkel, Laura and Bonin, Tim and Koch, Peter and Hüttmann, Gereon}, title = {Off-axis full-field swept-source optical coherence tomography using holographic refocusing}, pages = {857104-857104}, note = {10.1117/12.2006436}, abstract = {We demonstrate a full-field swept-source OCT using an off-axis geometry of the reference illumination. By using holographic refocusing techniques, a uniform lateral resolution is achieved over the measurement depth of approximately 80 Rayleigh lengths. Compared to a standard on-axis setup, artifacts and autocorrelation signals are suppressed and the measurement depth is doubled by resolving the complex conjugate ambiguity. Holographic refocusing was done efficiently by Fourier-domain resampling as demonstrated before in inverse scattering and holoscopy. It allowed to reconstruct a complete volume with about 10μm resolution over the complete measurement depth of more than 10mm. Off-axis full-field swept-source OCT enables high measurement depths, spanning many Rayleigh lengths with reduced artifacts.}, DOI = {10.1117/12.2006436}, url = {http://dx.doi.org/10.1117/12.2006436}, year = {2013}, type = {Journal Article} } |
Gesa Lilith
Franke,
Dierck
Hillmann,
Christian
Luhrs,
Peter
Koch,
Jörn
Wollenzin, and
Gereon
Hüttmann,
Towards microscopic resolution in holoscopy, pp. 85711O-85711O, 2013.
Towards microscopic resolution in holoscopy, pp. 85711O-85711O, 2013.
DOI: | 10.1117/12.2006806 |
File: | 12.2006806 |
Bibtex: | @article{Franke2013, author = {Franke, Gesa Lilith and Hillmann, Dierck and Lührs, Christian and Koch, Peter and Wollenzin, Jörn and Hüttmann, Gereon}, title = {Towards microscopic resolution in holoscopy}, pages = {85711O-85711O}, note = {10.1117/12.2006806}, abstract = {Holoscopy is a new imaging approach combining digital holography and full-field Fourier-domain optical coherence tomography. The interference pattern between light scattered by a sample and a defined reference wave is recorded and processed numerically. During reconstruction numerical refocusing is applied, overcoming the limitation of the focal depth and thus a uniform, diffraction limited lateral resolution over the whole measurement depth can be obtained. The advantage of numerical refocusing becomes especially significant for imaging at high numerical apertures (NAs). We use a high-resolution setup based on a Mach-Zehnder interferometer with an high-resolution microscope objective (NA = 0.75). For reliable reconstruction of a sample volume the Rayleigh length of the microscope objective and the axial resolution, given by the spectral range of the light source, need to be matched. For a 0.75 NA objective a tunable light source with a sweeping range of ! 300nm is required. Here we present as a first step a tunable Ti:sapphire laser with a tuning range of 187 nm. By characterizing the spectral properties of the Ti:sapphire laser and determining the axial point spread function we demonstrate the feasibility of this light source for high-resolution holoscopy.}, DOI = {10.1117/12.2006806}, url = {http://dx.doi.org/10.1117/12.2006806}, year = {2013}, type = {Journal Article} } |
Peer K
Fink,
Dierck
Hillmann,
Gesa L
Franke,
Dirk
Ramm, and
P
Koch,
Stray light rejection by structured illumination, in Studierendentagung , Universität zu Lübeck, 2013.
Stray light rejection by structured illumination, in Studierendentagung , Universität zu Lübeck, 2013.
2012
Gesa Lilith
Franke,
Dierck
Hillmann,
Thorsten
Claussen,
Christian
Luhrs, and
Peter
Koch,
High resolution holoscopy, Joseph, A. Izatt and James, G. Fujimoto and Valery, V. Tuchin, Eds. SPIE, 2012. pp. 821324.
High resolution holoscopy, Joseph, A. Izatt and James, G. Fujimoto and Valery, V. Tuchin, Eds. SPIE, 2012. pp. 821324.
File: | 12.911166 |
Bibtex: | @inproceedings{Franke-2012, author = {Franke, Gesa Lilith and Hillmann, Dierck and Claussen, Thorsten and Luhrs, Christian and Koch, Peter and Huttmann, Gereon}, title = {High resolution holoscopy}, editor = {Joseph, A. Izatt and James, G. Fujimoto and Valery, V. Tuchin}, publisher = {SPIE}, volume = {8213}, pages = {821324}, URL = { https://doi.org/10.1117/12.911166}, year = { 2012} } |
Dierck
Hillmann,
Gesa
Franke,
Christian
Luhrs, and
Peter
Koch,
Efficient holoscopy image reconstruction, Opt. Express , vol. 20, no. 19, pp. 21247-21263, 2012.
Efficient holoscopy image reconstruction, Opt. Express , vol. 20, no. 19, pp. 21247-21263, 2012.
Dierck
Hillmann,
Tim
Bonin,
Christian
Luhrs,
Gesa
Franke,
Martin
Hagen-Eggert, and
Peter
Koch,
Common approach for compensation of axial motion artifacts in swept-source OCT and dispersion in Fourier-domain OCT, Opt. Express , vol. 20, no. 6, pp. 6761-6776, 2012.
Common approach for compensation of axial motion artifacts in swept-source OCT and dispersion in Fourier-domain OCT, Opt. Express , vol. 20, no. 6, pp. 6761-6776, 2012.
D.
Hillmann,
T.
Bonin,
C.
Luhrs,
G.
Franke,
M.
Hagen-Eggert, and
P.
Koch,
Common approach for compensation of axial motion artifacts in swept-source OCT and dispersion in Fourier-domain OCT, Opt Express , vol. 20, no. 6, pp. 6761--6776, 2012.
Common approach for compensation of axial motion artifacts in swept-source OCT and dispersion in Fourier-domain OCT, Opt Express , vol. 20, no. 6, pp. 6761--6776, 2012.
2011
D.
Hillmann,
C.
Luhrs,
T.
Bonin, and
P.
Koch,
Holoscopy--holographic optical coherence tomography, Opt Lett , vol. 36, no. 13, pp. 2390-2, 2011.
Holoscopy--holographic optical coherence tomography, Opt Lett , vol. 36, no. 13, pp. 2390-2, 2011.
DOI: | 10.1364/OL.36.002390 |
File: | 21725421 |
Bibtex: | @article{Hillmann2011-1, author = {Hillmann, D. and Luhrs, C. and Bonin, T. and Koch, P. and Huttmann, G.}, title = {Holoscopy--holographic optical coherence tomography}, journal = {Opt Lett}, volume = {36}, number = {13}, pages = {2390-2}, abstract = {Scanning optical coherence tomography (OCT) is limited in sensitivity and resolution by the restricted focal depth of the confocal detection scheme. Holoscopy, a combination of holography and Fourier-domain full-field OCT, is proposed as a way to detect photons from all depths of a sample volume simultaneously with uniform sensitivity and lateral resolution, even at high NAs. By using the scalar diffraction theory, as frequently applied in digital holographic imaging, we fully reconstruct the object field with depth-invariant imaging quality. In vivo imaging of human skin is demonstrated with an image quality comparable to conventionally scanned OCT.}, keywords = {Fingers Fourier Analysis Holography/*methods Humans Photons Tomography, Optical Coherence/*methods}, ISSN = {1539-4794 (Electronic) 0146-9592 (Linking)}, DOI = {10.1364/OL.36.002390}, url = {http://www.ncbi.nlm.nih.gov/pubmed/21725421}, year = {2011}, type = {Journal Article} } |
M.
Hagen-Eggert,
D.
Hillmann, and
P.
Koch,
Diffusion-sensitive Fourier-domain optical coherence tomography, James, G. Fujimoto and Joseph, A. Izatt and Valery, V. Tuchin, Eds. SPIE, 2011. pp. 78892B.
Diffusion-sensitive Fourier-domain optical coherence tomography, James, G. Fujimoto and Joseph, A. Izatt and Valery, V. Tuchin, Eds. SPIE, 2011. pp. 78892B.
File: | 12.873815.short |
Bibtex: | @inproceedings{Hagen-Eggert2011, author = {Hagen-Eggert, M. and Hillmann, D. and Koch, P. and Huttmann, G.}, title = {Diffusion-sensitive Fourier-domain optical coherence tomography}, editor = {James, G. Fujimoto and Joseph, A. Izatt and Valery, V. Tuchin}, publisher = {SPIE}, volume = {7889}, pages = {78892B}, } |
Dierck
Hillmann,
Christian
Luhrs,
Tim
Bonin,
Peter
Koch, and
Alfred
Vogel,
Holoscopy: holographic optical coherence tomography, Rainer, A. Leitgeb and Brett, E. Bouma, Eds. Proc. SPIE, 2011. pp. 80911H.
Holoscopy: holographic optical coherence tomography, Rainer, A. Leitgeb and Brett, E. Bouma, Eds. Proc. SPIE, 2011. pp. 80911H.
2010
Joachim
Probst,
Dierck
Hillmann,
Eva
Lankenau,
Stefan
Oelckers, and
Peter
Koch,
Optical coherence tomography with online visualization of more than seven rendered volumes per second, Journal of Biomedical Optics , vol. 15, no. 2, pp. 026014, 2010.
Optical coherence tomography with online visualization of more than seven rendered volumes per second, Journal of Biomedical Optics , vol. 15, no. 2, pp. 026014, 2010.
2009
Dierck
Hillmann, and
Peter
Koch,
Using nonequispaced fast Fourier transformation to process optical coherence tomography signals, Peter, E. Andersen and Brett, E. Bouma, Eds. SPIE, 2009. pp. 73720R.
Using nonequispaced fast Fourier transformation to process optical coherence tomography signals, Peter, E. Andersen and Brett, E. Bouma, Eds. SPIE, 2009. pp. 73720R.
File: | ECBO.2009.7372_0R |
Bibtex: | @inproceedings{Hillmann, author = {Hillmann, Dierck and Huttmann, Gereon and Koch, Peter}, title = {Using nonequispaced fast Fourier transformation to process optical coherence tomography signals}, editor = {Peter, E. Andersen and Brett, E. Bouma}, publisher = {SPIE}, volume = {7372}, pages = {73720R}, url = { https://doi.org/10.1364/ECBO.2009.7372_0R}, year = { 2009} } |