In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 38, No. 1R ( 1999-01-01), p. 89-
Abstract:
Anamorphic liquid crystal (LC) microlenses are fabricated using elliptical hole-patterned
electrodes of various sizes and ellipticity. The relationships between their optical properties and electrode structure are investigated experimentally and summarized as follows. 1) The
maximum values of the numerical aperture (NA) in the directions parallel and perpendicular to the rubbing direction simultaneously depend on the diameters in the direction parallel and
perpendicular to the rubbing direction (D ∥ and D ⊥ ), respectively. 2)The normalized
longitudinal aberrations, which are closely related to the spherical aberration, in the directions parallel and perpendicular to the rubbing direction strongly depend on D ∥ and D ⊥ , respectively.
3)The astigmatism strongly depends on the ellipticity (D ∥ /D ⊥ ) of the electrode pattern. Finally,
an optical setup for collimating an astigmatic beam emitted from a laser diode (LD) is realized using an anamorphic LC microlens. As a result, a round collimated beam is obtained,
and the potential of the anamorphic LC microlenses for collimating a laser diode beam is confirmed.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1999
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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