High resolution digital transmission microscopy : a Fourier holography approach
Author
Summary, in English
A spherical reference field is used to construct a digital holography system
with a demonstrated resolution down to 228 line pairs per mm. The reference
field origin from a GRIN lens placed 1mm from the illuminated object.
This allows the use of a standard sensor to record the hologram with the
required numerical aperture. The image is determined by evaluation of the
Rayleigh-Sommerfeld diffraction integral that relates the object field in the
image plane to the object field in the sensor plane. Experimental results are
given for two charge couple device sensors and one complementary metaloxide-
semiconductor active pixel sensor.
with a demonstrated resolution down to 228 line pairs per mm. The reference
field origin from a GRIN lens placed 1mm from the illuminated object.
This allows the use of a standard sensor to record the hologram with the
required numerical aperture. The image is determined by evaluation of the
Rayleigh-Sommerfeld diffraction integral that relates the object field in the
image plane to the object field in the sensor plane. Experimental results are
given for two charge couple device sensors and one complementary metaloxide-
semiconductor active pixel sensor.
Publishing year
2002
Language
English
Publication/Series
Technical Report LUTEDX/(TEAT-7106)/1-11/(2002)
Full text
Document type
Report
Publisher
[Publisher information missing]
Topic
- Electrical Engineering, Electronic Engineering, Information Engineering
Status
Published
Report number
TEAT-7106
Research group
- Electromagnetic theory