| 摘要 |
<p>Thermal conductivity of a sample (30), e.g. a diamond film, is measured by setting up a thermal gradient (38). This may be done, for example, using a heater (34) and heat sink (36). The temperature of a plurality of points (19) along the thermal gradient is then measured by illuminating them with a laser beam (10), and taking the ratio between the intensities of Stokes and anti-Stokes Raman scattering. Having determined the temperature of such points, the thermal gradient, is calculated, and from that the thermal conductivity.</p> |
