| Автор | R V Jones |
| Дата выпуска | 1961-02-01 |
| dc.description | The history of the optical lever is briefly reviewed from its invention by Poggendorf in 1826 to the recognition by Ising in 1926 of Brownian fluctuations of a galvanometer in the records obtained by Moll and Burger in 1925 with their thermoelectric relay.The design of optical levers and amplifiers by the author and his collaborators is outlined; these give sensitivities of the order 10<sup>-10</sup> radian for a mirror 2.0 mm × 2.0 mm, and an observation bandwidth of 10 c/s. The effects of convection currents and photon fluctuations are indicated. The applications of optical levers to a range of measurements, including Brownian fluctuations, radiation pressure, linear expansion and infra-red detection are described. Optical and photoelectric systems similar to those developed for the optical lever can be used for alignment measurement; applications include refractometry for refractive index changes of order 10<sup>-9</sup>, and a test of the constancy of the velocity of light in a transverse magnetic field. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Some developments and applications of the optical lever |
| Тип | paper |
| DOI | 10.1088/0950-7671/38/2/301 |
| Print ISSN | 0950-7671 |
| Журнал | Journal of Scientific Instruments |
| Том | 38 |
| Первая страница | 37 |
| Последняя страница | 45 |
| Аффилиация | R V Jones; Department of Natural Philosophy, University of Aberdeen |
| Выпуск | 2 |
