Fohrmann, Lena SimoneLena SimoneFohrmannSommer, GerritGerritSommerPitruzzello, GiampaoloGiampaoloPitruzzelloKrauss, Thomas F.Thomas F.KraussPetrov, AlexanderAlexanderPetrovEich, ManfredManfredEich2019-10-182019-10-182017-10-2614th International Conference on Group IV Photonics, GFP 2017: 131-132 (2017-10-26)http://hdl.handle.net/11420/3574A 2D integrating cell waveguide platform is presented where ultra-long optical path lengths in a small area are realized by multiple reflections of a guided signal at PhC boundaries. In experiments, path lengths of 25 cm are demonstrated in integrating cells with 1.8 mm radius.enIntegrated PhotonicsOptical sensorsPhotonic CrystalsSiliconTechnik2D integrating cell waveguide platform employing ultra-long optical path lengthsConference Paper10.1109/GROUP4.2017.8082231Other