Extinction measurements in diffusing mammalian tissue with heterodyne detection and a titanium:sapphire laser
| Autor: | Thierry Lépine, Gilbert Jarry, Ludovic Poupinet, Jennifer Watson |
|---|---|
| Přispěvatelé: | Institut d'Optique Graduate School (IOGS), Laboratoire Charles Fabry / Lasers, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS) |
| Rok vydání: | 1995 |
| Předmět: |
Materials science
Materials Science (miscellaneous) 02 engineering and technology 01 natural sciences Industrial and Manufacturing Engineering law.invention 010309 optics symbols.namesake 020210 optoelectronics & photonics Optics Optical coherence tomography law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering medicine Heterodyne detection Business and International Management Absorption (electromagnetic radiation) ComputingMilieux_MISCELLANEOUS [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] medicine.diagnostic_test business.industry Attenuation Near-infrared spectroscopy Laser Sapphire symbols business Doppler effect |
| Zdroj: | Applied optics Applied optics, Optical Society of America, 1995, 34 (12), ⟨10.1364/AO.34.002045⟩ |
| ISSN: | 1539-4522 0003-6935 |
| DOI: | 10.1364/ao.34.002045 |
| Popis: | Total optical absorption in mammalian tissues is measured in the near infrared by the use of heterodyne detection and a Ti:sapphire laser. Because of the high sensitivity, directivity, and signal-to-noise ratio of the setup, we were able to detect coherent photons after attenuation by more than 9 optical densities. This method allows us to detect unscattered photons that are passing through more than 7 mm of various tissues such as brain, muscle, liver, skin, and fat selectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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