Demonstration of tolerance to dispersion of master/slave interferometry Adrian Bradu, Michael Maria, and Adrian Gh. Podoleanu Optics Express Vol. 23, Issue 11, pp. 14148-14161 (2015) •doi: 10.1364/OE.23.014148 Master/Slave Interferometry (MSI) is a recently proposed Spectral Domain Interferometry (SDI) technique. MSI differs from the conventional Spectrometer based-SDI (Sp-SDI) or Swept source-SDI (SS-SDI) by switching the main Read more about Master/Slave Interferometry and Dispersion[…]

Updated on 27 January 2017   ORAL PRESENTATION Master/slave: the ideal tool for coherence revival based optical coherence tomography imaging instruments (abstract) Adrian Bradu, Sylvain Rivet, Adrian Podoleanu 1 February 2017 • 9:45 – 10:00 AM | Part of SPIE BiOS Back to Photonics West 2017 Abstract Currently, optical coherence tomography (OCT) is almost exclusively implemented via Read more about Master/slave: the ideal tool for coherence revival based optical coherence tomography imaging instruments[…]

  In the early nineties, a new optical method based on low-coherence interferometry called Optical Coherence Tomography (OCT) [1] was developed. This non-invasive imaging method has been widespread in ophthalmology over the past decades thanks to its ability to visualize ocular structures at high resolution in lateral and axial direction. To further improve axial resolution, the use of an ultra-broadband source Read more about Optical Coherence Tomography Angiography (OCTA)[…]

Updated on 27 January 2017   ORAL PRESENTATION Polarization extinction ratio and polarization dependent intensity noise analyses in long-pulse supercontinuum generation Catherine Chin, Rasmus Dybbro Engelsholm, Peter Morten Moselund, Thomas Feuchter, Lasse Leick, Adrian Podoleanu, Ole Bang 30 January 2017 • 4:26 – 4:38 PM | Part of SPIE LASE Back to Photonics West 2017 Abstract Read more about Polarization extinction ratio and polarization dependent intensity noise analyses in long-pulse supercontinuum generation[…]

Background Supercontinuum light sources have traditionally been ignored in many OCT imaging applications owing to poor noise performance1,2. The development of super luminescent diodes (SLD) and tuneable lasers such as swept sources have seen potential growth and adoption for OCT systems in the last decades. However, many of these conventional light sources struggle to provide Read more about Polarisation noise in supercontinuum[…]

Catherine Chin Polarisation sensitive optical coherence tomography (PS-OCT) is a functional extension to intensity based light imaging system by utilising additional information carried by polarised light to provide enhance contrast. In traditional imaging, when only backscattered intensity is collected and analysed, information related to depth and layered structure are neglected. In a typical microscopy system, Read more about Polarisation sensitive OCT[…]

Master/slave (MS) represents a revival of the en-face view, whereby the values of the first OCT/SLO are re-enacted using the modern principles of spectral (or Fourier) domain OCT. It is a technical invention of Applied Optics Group at the University of Kent. Prof Adrian Podoleanu and Dr Adrian Bradu are the inventors of this new imaging technique. Read more about Master/slave OCT[…]

In this project the possibility of using a supercontinuum in the visible wavelength range for spectroscopic analysis in combination with imaging, so called spectroscopic optical coherence tomography is investigated. Spectroscopic optical coherence tomography combines imaging of optical coherence tomography with localized absorption, which is used as functional information. These functional information are asked for from Read more about Spectroscopic visible light optical coherence tomography[…]

The supercontinuum source we are working with are commercial products from NKT Photonics and have the great feature of covering a large spectral bandwidth. These sources cover from the visible light up to the infrared wavelengths, to be precise from around 450 nm to 2400 nm. Because of this broad bandwidth we can use different Read more about Ultra-wide optical coherence tomography in different wavelengths regions using a supercontinuum source[…]