Experimental design and numerical investigation of a photoacoustic sensor for a low-power, continuous-wave, laser-based frequency-domain photoacoustic microscopy
作者: Krishnan SathiyamoorthyMichael C. Kolios
作者单位: 1Ryerson University
2Institute for Biomedical Engineering, Science, and Technology (iBEST)
3Keenan Research Centre for Biomedical Science, St. Michael’s Hospital
刊名: Journal of Biomedical Optics, 2019, Vol.24 (12), pp.121912-121912
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.JBO.24.12.121912
关键词: MicroscopePhotoacousticLasersCOMSOLResonatorMicrophoneBiomedical
原始语种摘要: We have developed a photoacoustic (PA) sensor using a low-power, continuous- wave laser and a kHz-range microphone. The sensor is simple, flexible, cost-effective, and compatible with commercial optical microscopes. The sensor enables noncontact PA measurements through air, whereas most current existing PA techniques require an acoustic coupling liquid for detection. The PA sensor has three main components: one is the chamber that holds the sample, the second is a resonator column used to amplify the weak PA signals generated within the sample chamber, and the third is a microphone at the end of the resonator column to detect the amplified signals. The chamber size was designed to be 8 mm × 3 mm as the thermal diffusion length and viscous-thermal damping of air at room pressure and...
全文获取路径: SPIE 
影响因子:2.881 (2012)

  • photoacoustic 光声的
  • continuous 连续的
  • resonator 共振器
  • sensor 感受器
  • investigation 研究
  • microphone 传声器
  • frequency 频率
  • microscopy 显微镜检查
  • laser 激光
  • column