Webthe Rowland mounting type in which the input and output waveguides are located on the arc of the so-called Rowland circle [1]. This ... the Rowland circle, the slab region, and the lens, respectively. (b) Cross-section of the star coupler with silicon nitride (Si 3N WebIn this work, an alternative way of designing a flat-focal-field arrayed-waveguide grating (AWG) using an integrated field-flattening lens is presented. Integrated spectrometers are …
Geometrical optimization of the transmission and ... - ResearchGate
WebRowland went on to investigate the action of the concave grating theoretically, and described the most useful type of mounting [the 'Rowland' mounting]. These gratings, with … WebIn this work, an alternative way of designing a flat-focal-field arrayed-waveguide grating (AWG) using an integrated field-flattening lens is presented. Integrated spectrometers are usually of the Rowland mounting type [1]. For applications in which a continuous output spectrum needs to be imaged directly onto a linear detector array, the curved image plane … html disable text highlighting
10.3.2.1.9 Mountings of spectral apparatus Littrow prism
WebLocation 240 Attwell Drive Toronto, ON M9W 5B2 Toll Free: 1-877-ROWLAND Phone: 905-670-0601 Fax: 905-670-8540 [email protected] WebThese gratings are used in mountings based on the Rowland circle, which has a diameter equal to the radius of curvature of the grating. Useful for wide spectral ranges, ZEISS Rowland gratings achieve high resolution … WebDec 1, 1970 · 3. GRAZING INCIDENCE MOUNTINGS Consider first the in-plane grazing incidence Rowland mounting [6J; the main aberration term [4J which involves w is the Seidel spherical aberration given by Mw>l) -C4(w2+12)2 . (8) Because of the high values of the C4 coefficient at grazing incidence, the image quality is now characterized by the value of Q. html display absolute