Bell, TebohoForbes, ANgcobo, SandileNaidoo, Darryl2017-07-282017-07-282016-03Bell, T., Forbes, A., Ngcobo, S. et al. Thermal lensing measurement from the coefficient of defocus aberration. SPIE Photonics West, San Francisco, CA, USA, March 2016http://hdl.handle.net/10204/9317Poster presented at SPIE Photonics West, San Francisco, CA, USA, March 2016We measured the thermally induced lens from the coefficient of defocus aberration using a Shack-Hartmann wavefront sensor (SHWFS). As a calibration technique, we infer the focal length of standard lenses probed by a collimated Gaussian beam of wavelength 633 nm. The technique was applied to an Nd:YAG crystal that is actively pumped by a diode laser operating at 808 nm.enThermal lensing measurementShack-Hartmann Wavefront SensorConference PresentationBell, T., Forbes, A., Ngcobo, S., & Naidoo, D. (2016). Thermal lensing measurement from the coefficient of defocus aberration. http://hdl.handle.net/10204/9317Bell, Teboho, A Forbes, Sandile Ngcobo, and Darryl Naidoo. "Thermal lensing measurement from the coefficient of defocus aberration." (2016): http://hdl.handle.net/10204/9317Bell T, Forbes A, Ngcobo S, Naidoo D, Thermal lensing measurement from the coefficient of defocus aberration; 2016. http://hdl.handle.net/10204/9317 .TY - Conference Presentation AU - Bell, Teboho AU - Forbes, A AU - Ngcobo, Sandile AU - Naidoo, Darryl AB - We measured the thermally induced lens from the coefficient of defocus aberration using a Shack-Hartmann wavefront sensor (SHWFS). As a calibration technique, we infer the focal length of standard lenses probed by a collimated Gaussian beam of wavelength 633 nm. The technique was applied to an Nd:YAG crystal that is actively pumped by a diode laser operating at 808 nm. DA - 2016-03 DB - ResearchSpace DP - CSIR KW - Thermal lensing measurement KW - Shack-Hartmann Wavefront Sensor LK - https://researchspace.csir.co.za PY - 2016 T1 - Thermal lensing measurement from the coefficient of defocus aberration TI - Thermal lensing measurement from the coefficient of defocus aberration UR - http://hdl.handle.net/10204/9317 ER -