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Pyramidal micromirrors for microsystems and atom chips
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10.1063/1.2172412
/content/aip/journal/apl/88/7/10.1063/1.2172412
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/7/10.1063/1.2172412
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Scanning electron microscopy micrographs of the etched and gold-coated pyramids. (a) Top view showing pyramids in a rectangular array with a pitch of . (b) Cross-sectional view of a single pyramid. This was obtained by cleaving the pyramid parallel to one of its edges. The base of the pyramid has a side of length , corresponding to a perpendicular depth of .

Image of FIG. 2.
FIG. 2.

(Color online) Measured intensity distribution of reflected light, at a distance of from the array of pyramids, when it is illuminated at normal incidence. A central bright spot, which is caused by reflection from the region between pyramids, was blocked to improve the visibility of light reflected from the pyramids. The circles in (a) show the reflection pattern expected for a perfect pyramid, while the circles in (b) indicate the calculated reflection pattern for a pyramid with rounded corners. Size indicates expected relative intensity.

Image of FIG. 3.
FIG. 3.

(Color online) (a) Cross section in the plane through a pyramid, showing type (1) and (2) trajectories. These involve reflections from mirrors on opposite sides of the pyramid. (b) View of the entrance aperture of the pyramid, showing the regions that produce type (1), (2), and (3) rays.

Image of FIG. 4.
FIG. 4.

Views of the vertex pyramidal mirror under an optical microscope at magnification. Top row: Raytracing simulation. Bottom row: Photographs. (a) and (d) without polarizers; (b) and (e) parallel polarizer and analyzer; (c) and (f) crossed polarizer and analyzer.

Image of FIG. 5.
FIG. 5.

(Color online). Fluorescence image of atoms magneto-optically trapped in a 70.5° pyramid. Two reflections are also visible. The aperture of the pyramid (solid line) and its sloping edges (dashed lines) have been added to guide the eye of the reader. The outline of the incident laser beam is shown dotted. Some light is scattered from the edges of the pyramid and from the plane outside.

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/content/aip/journal/apl/88/7/10.1063/1.2172412
2006-02-15
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Pyramidal micromirrors for microsystems and atom chips
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/7/10.1063/1.2172412
10.1063/1.2172412
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