[Holo OR] Focusing Module optimized for Beam Shapers
페이지 정보
작성자관리자조회 17,333회작성일 15-06-30 20:18
본문
Focusing Module optimized for Beam Shapers
For applications requiring an aberration-free image in the
focal plane, with high
precision, HOLO/OR developed a new optimized focusing module to be used with
our Beam Shapers.
A standard focusing lens (or objective) is normally optimized for
focusing a Gaussian beam, thus, its use with Beam-Shapers often causes
aberrations of the Top-Hat image and requires special design of a focusing
lens or module. These aberrations will normally occur at small focal
lengths, short wavelength, large input beam and large image. To solve
this problem, HOLO/OR designed a focusing module (with focal length 50
[mm]) adapted to our Beam Shaper working at 355 [nm]. We
also offer customization for other wavelengths and focal
length.
Comparison between Square Top-Hats result at image plane
obtained by different focusing objectives:
Simulation results for a Square Top-Hat 100x100[µm2] in
size, with (from left to right): perfect lens (not real lens) for ideal
spot, aspheric lens, standard focusing module not optimized for use with a
Beam Shaper and Holo/Or’s focusing module optimized for Beam Shapers.
