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Showing 1 to 12 of 116 entries
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Spectroscopic imaging with spectral domain visible light optical coherence microscopy in Alzheimer's disease brain samples.

Biomedical optics express

Lichtenegger A, Harper DJ, Augustin M, Eugui P, Muck M, Gesperger J, Hitzenberger CK, Woehrer A, Baumann B.
PMID: 28966843
Biomed Opt Express. 2017 Aug 07;8(9):4007-4025. doi: 10.1364/BOE.8.004007. eCollection 2017 Sep 01.

A visible light spectral domain optical coherence microscopy system was developed. A high axial resolution of 0.88

Three-beam Doppler optical coherence tomography using a facet prism telescope and MEMS mirror for improved transversal resolution.

Journal of modern optics

Haindl R, Trasischker W, Baumann B, Pircher M, Hitzenberger CK.
PMID: 26689672
J Mod Opt. 2015;62(21):1781-1788. doi: 10.1080/09500340.2014.983569.

An improved three-beam Doppler optical coherence tomography system was developed. It utilizes a custom-made three-facet prism telescope to improve the transversal resolution at the sample. Furthermore, a two-axis gimbal-less MEMS mirror is used to minimize off-pivot beam movement at...

Making the invisible visible: improved electrospray ion formation of metalloporphyrins/-phthalocyanines by attachment of the formate anion (HCOO(-)).

The Analyst

Hitzenberger JF, Dammann C, Lang N, Lungerich D, García-Iglesias M, Bottari G, Torres T, Jux N, Drewello T.
PMID: 26753183
Analyst. 2016 Feb 21;141(4):1347-55. doi: 10.1039/c5an02148k.

A protocol is developed for the coordination of the formate anion (HCOO(-)) to neutral metalloporphyrins (Pors) and -phthalocyanines (Pcs) containing divalent metals as a means to improve their ion formation in electrospray ionization (ESI). This method is particularly useful...

Dithiafulvenyl-Extended N-Heterotriangulenes and Their Interaction with C.

Chemistry (Weinheim an der Bergstrasse, Germany)

Gliemann BD, Strauss V, Hitzenberger JF, Dral PO, Hampel F, Gisselbrecht JP, Drewello T, Thiel W, Guldi DM, Kivala M.
PMID: 28574611
Chemistry. 2017 Sep 07;23(50):12353-12362. doi: 10.1002/chem.201701625. Epub 2017 Aug 01.

We describe the synthesis as well as the electronic and photophysical characterization of novel N-heterotriangulene derivatives decorated with methoxycarbonyl- and methyl-sulfanyl-substituted dithiafulvenyl moieties. The association of these electron-rich compounds with fullerene C

[Electroencephalography in the human].

Wiener medizinische Wochenschrift (1946)

Hitzenberger P.
PMID: 9642756
Wien Med Wochenschr. 1998;148(1):1.

No abstract available.

Spectral measurement of absorption by spectroscopic frequency-domain optical coherence tomography.

Optics letters

Leitgeb R, Wojtkowski M, Kowalczyk A, Hitzenberger CK, Sticker M, Fercher AF.
PMID: 18064195
Opt Lett. 2000 Jun 01;25(11):820-2. doi: 10.1364/ol.25.000820.

A new method of measurement that essentially combines Fourier-domain optical coherence tomography with spectroscopy is introduced. By use of a windowed Fourier transform it is possible to obtain, in addition to the object structure, spectroscopic information such as the...

Retrieved and measured aerosol mass size distributions: a comparison.

Applied optics

Hitzenberger R, Rizzi R.
PMID: 18231211
Appl Opt. 1986 Feb 15;25(4):546. doi: 10.1364/ao.25.000546.

No abstract available.

Imaging of polarization properties of human retina in vivo with phase resolved transversal PS-OCT.

Optics express

Pircher M, Götzinger E, Leitgeb R, Sattmann H, Findl O, Hitzenberger C.
PMID: 19488235
Opt Express. 2004 Nov 29;12(24):5940-51. doi: 10.1364/opex.12.005940.

Recently, we developed a phase resolved polarization sensitive OCT system based on transversal scanning. This system was now improved and adapted for retinal imaging in vivo. We accelerated the image acquisition speed by a factor of 10 and adapted...

Three-dimensional imaging of the human retina by high-speed optical coherence tomography.

Optics express

Hitzenberger C, Trost P, Lo PW, Zhou Q.
PMID: 19471390
Opt Express. 2003 Oct 20;11(21):2753-61. doi: 10.1364/oe.11.002753.

Conventional optical coherence tomography is based on A-scans, i.e., the fast scan direction is the z-direction. While this technique has been successfully demonstrated for two-dimensional cross sectional imaging of various tissues, it is rather slow if three-dimensional information is...

Quantitative principal component model for skin chromophore mapping using multi-spectral images and spatial priors.

Biomedical optics express

Kainerstorfer JM, Riley JD, Ehler M, Najafizadeh L, Amyot F, Hassan M, Pursley R, Demos SG, Chernomordik V, Pircher M, Smith PD, Hitzenberger CK, Gandjbakhche AH.
PMID: 21559118
Biomed Opt Express. 2011 Apr 01;2(5):1040-58. doi: 10.1364/BOE.2.001040.

We describe a novel reconstruction algorithm based on Principal Component Analysis (PCA) applied to multi-spectral imaging data. Using numerical phantoms, based on a two layered skin model developed previously, we found analytical expressions, which convert qualitative PCA results into...

Speckle noise reduction in high speed polarization sensitive spectral domain optical coherence tomography.

Optics express

Götzinger E, Pircher M, Baumann B, Schmoll T, Sattmann H, Leitgeb RA, Hitzenberger CK.
PMID: 21934820
Opt Express. 2011 Jul 18;19(15):14568-85. doi: 10.1364/OE.19.014568.

We present a high speed polarization sensitive spectral domain optical coherence tomography system based on polarization maintaining fibers and two high speed CMOS line scan cameras capable of retinal imaging with up to 128 k A-lines/s. This high imaging...

Adaptive optics SLO/OCT for 3D imaging of human photoreceptors in vivo.

Biomedical optics express

Felberer F, Kroisamer JS, Baumann B, Zotter S, Schmidt-Erfurth U, Hitzenberger CK, Pircher M.
PMID: 24575339
Biomed Opt Express. 2014 Jan 10;5(2):439-56. doi: 10.1364/BOE.5.000439. eCollection 2014 Feb 01.

We present a new instrument that is capable of imaging human photoreceptors in three dimensions. To achieve high lateral resolution, the system incorporates an adaptive optics system. The high axial resolution is achieved through the implementation of optical coherence...

Showing 1 to 12 of 116 entries