{"title":"光声光谱法研究地衣中色素对光的吸收","authors":"Ellen P. O'Hara, R. Tom, Thomas A. Moore","doi":"10.1364/pas.1981.tub29","DOIUrl":null,"url":null,"abstract":"Spectroscopic studies of the absorption of light by pigments in lichen in situ have been hindered by the optical properties of the samples. Characteristic of many biological samples, the crustose lichen Acarospora schleicheri have a low reflectivity and high optical density. These properties make conventional transmittance spectroscopy and diffuse reflectance measurements difficult. Photoacoustic spectroscopy (PAS), however, is ideally suited for measuring the spectral characteristics of opaque and/or low reflecting samples.","PeriodicalId":202661,"journal":{"name":"Second International Meeting on Photoacoustic Spectroscopy","volume":"136 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Absorption of Light by Pigments in Lichens Studied by Photoacoustic Spectroscopy\",\"authors\":\"Ellen P. O'Hara, R. Tom, Thomas A. Moore\",\"doi\":\"10.1364/pas.1981.tub29\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Spectroscopic studies of the absorption of light by pigments in lichen in situ have been hindered by the optical properties of the samples. Characteristic of many biological samples, the crustose lichen Acarospora schleicheri have a low reflectivity and high optical density. These properties make conventional transmittance spectroscopy and diffuse reflectance measurements difficult. Photoacoustic spectroscopy (PAS), however, is ideally suited for measuring the spectral characteristics of opaque and/or low reflecting samples.\",\"PeriodicalId\":202661,\"journal\":{\"name\":\"Second International Meeting on Photoacoustic Spectroscopy\",\"volume\":\"136 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Second International Meeting on Photoacoustic Spectroscopy\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1364/pas.1981.tub29\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Second International Meeting on Photoacoustic Spectroscopy","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1364/pas.1981.tub29","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Absorption of Light by Pigments in Lichens Studied by Photoacoustic Spectroscopy
Spectroscopic studies of the absorption of light by pigments in lichen in situ have been hindered by the optical properties of the samples. Characteristic of many biological samples, the crustose lichen Acarospora schleicheri have a low reflectivity and high optical density. These properties make conventional transmittance spectroscopy and diffuse reflectance measurements difficult. Photoacoustic spectroscopy (PAS), however, is ideally suited for measuring the spectral characteristics of opaque and/or low reflecting samples.
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