| 摘要 |
An optical probe comprises a probe head (32) housing a transmission element(4), preferably comprising a fibre-optic (46) and a collection element (10), preferably comprising a fibre optic (48) each having a distal end (6,12) at which optical radiation is respectively transmitted into and collected from a sample receiving volume 8 defined, at least in part, by non parallel opposing side-walls (34, 36) of the probe head (32) in which the respective distal ends (6, 12) terminate. The respective distal ends (6,12) are disposed in an off-axis configuration in which the distal end (12) of the collection element (10) is located outside the acceptance cone (14) of the transmission element (4) to avoid collection at the distal end (12) of the collection element (10) of uninterrupted radiation emitted from the distal end (6) of the transmission element (4). |
