Slomka, Bridget Duan, Suzann Knapp, Thomas G. Lima, Natzem Sontz, Ricky Merchant, Juanita L. Sawyer, Travis W.
Published in
Frontiers in Photonics
Gastrointestinal cancers continue to account for a disproportionately large percentage of annual cancer deaths in the United States. Advancements in miniature imaging technology combined with a need for precise and thorough tumor detection in gastrointestinal cancer screenings fuel the demand for new, small-scale, and low-cost methods of localizati...
Shen, Qian Li, Zhuoshi Sun, Jiasong Fan, Yao Chen, Yuanyuan Gu, Haojie Gao, Peng Chen, Qian Zuo, Chao
Published in
Frontiers in Photonics
Label-free quantitative phase imaging is an essential tool for studying in vitro living cells in various research fields of life sciences. Digital holographic microscopy (DHM) is a non-destructive full-field microscopy technique that provides phase images by directly measuring the optical path differences, which facilitates cell segmentation and al...
Li, Weijiang Li, Yuanyuan Ma, Yu Xu, Yunfei Liu, Junqi Zhuo, Ning Lu, Quanyong Wang, Lijun Zhang, Jinchuan Zhai, Shenqiang
...
Published in
Frontiers in Photonics
We report a low threshold power density and high power output terahertz quantum cascade laser emitting at ∼3.9 THz operating in continuous-wave mode. The high output power and wall-plug efficiency are achieved based on a hybrid bound-to-bound quantum active design. A record output power of 312 mW and a low threshold power density of 0.8 kW/mm3 (thr...
Huang, Jiayue Ninomiya, Kai Tu, Shengxian Masuda, Shinichiro Dijkstra, Jouke Chu, Miao Ding, Daixin Hynes, Sean O. O’Leary, Neil Wijns, William
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Published in
Frontiers in Photonics
Background: The optical coherence tomography (OCT)-deep learning (DL) emerged as a promising tool for automated plaque characterization. However, its findings have not been compared with optical and ultrasound signals. Objectives: The objective was to cross-validate the calcified plaque detected by OCT-DL, using comprehensive tissue characterizatio...
Sadzak, Nikola Carmele, Alexander Widmann, Claudia Nebel, Christoph Knorr, Andreas Benson, Oliver
Published in
Frontiers in Photonics
Spin systems in solid state materials are promising qubit candidates for quantum information in particular as quantum memories or for quantum sensing. A major prerequisite here is the coherence of spin phase oscillations. In this work, we show a control sequence which, by applying RF pulses of variable detuning, allows to increase the visibility of...
Hustings, Jeroen Bonné, Robin Cornelissen, Rob Morini, Filippo Valcke, Roland Vandewal, Koen Manca, Jean V.
Published in
Frontiers in Photonics
Light-induced charge-transfer mechanisms are at the heart of both photosynthesis and photovoltaics. The underlying photophysical mechanisms occurring within photosynthesis and organic photovoltaics in particular show striking similarities. However, they are studied by distinct research communities, often using different terminology. This contributi...
Tsang, P. W. M. Poon, Ting-Chung Zhang, Yaping Ferraro, Pietro
Published in
Frontiers in Photonics
Veloso, Tatiane Moraes de Souza da Fonseca, Adenilson Costa dos Santos, Gilson Jr
Published in
Frontiers in Photonics
Currently, light-emitting diodes (LEDs) are considered a substitute for low-power lasers in phototherapy protocols. LEDs enable photobiomodulation on biological tissues and are considered safe and economical. However, the molecular and metabolic mechanisms involved in LED-induced photobiomodulation are not yet fully understood. This review summariz...
Bonaventura, Justina Morara, Kellys Carlson, Rhea Comrie, Courtney Daigle, Noelle Hutchinson, Elizabeth Sawyer, Travis W.
Published in
Frontiers in Photonics
Understanding microscale physiology and microstructural cellular features of the brain is key to understanding mechanisms of neurodegenerative diseases and injury, as well as prominent changes undergone in development and aging. Non-invasive imaging modalities sensitive to the microscale, especially diffusion magnetic resonance imaging (dMRI), are ...
Ségaud, Silvère Baratelli, Luca Felli, Eric Bannone, Elisa Cinelli, Lorenzo Rodríguez-Luna, María Rita Okamoto, Nariaki Keller, Deborah S de Mathelin, Michel Lecler, Sylvain
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Published in
Frontiers in Photonics
Despite recent technological progress in surgical guidance, current intraoperative assessment of tissue that should be removed (e.g., cancer) or avoided (e.g., nerves) is still performed subjectively. Optical imaging is a non-contact, non-invasive modality that has the potential to provide feedback regarding the condition of living tissues by imagi...
