The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Single higher-order transverse mode operation with radial polarization of a Nd:YAG laser was demonstrated by use of a spatially reflectivity-modulated output coupler. By adjusting the cavity, TM02, TM03, and TM04 modes were selectively obtained.
A novel polarisation-analysing CMOS photosensor is proposed, and its application demonstrated. A wire grid structure configured with a metal wiring layer on a photosensor pixel is used as an embedded polariser. The polarisation-dependent sensitivity of the photosensor is demonstrated even in a wavelength region that is smaller than the grid pitch. The polarimetric measurement of a sucrose solution...
Transverse mode conversion by second harmonic generation is demonstrated using focused axially symmetric, polarized beams with spatial variation of ellipticity. Superposition of higher order transverse modes of Hermite-Gaussian or Laguerre-Gaussian beams forms peculiar intensity patterns.
Cylindrical vector beams were generated from a Nd:YAG laser cavity including an undoped c-cut YVO4 crystal. By simply adjusting the length of an asymmetric concentric cavity, the selection of radial or azimuthal polarization was possible.
Guided-wave directional couplers having good polarisation-maintaining characteristics have been made in glass and assembled with polarisation maintaining fibre arrays fabricated by a novel technique using capillaries on a V-grooved substrate. The extinction ratios of the output ports were over 31 dB for waveguide chips and 26 dB for fibre array-assembled devices, respectively.<<ETX>>
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.