Optical mapping of surface roughness by implementation of a spatial light modulator

2017 ◽  
Author(s):  
Min Lu ◽  
Shengjia Wang ◽  
Laura M. Aulbach ◽  
Alexander W. Koch ◽  
Franziska Pöller
Keyword(s):  
Surface Roughness ◽  
Spatial Light Modulator ◽  
Optical Mapping ◽  
Light Modulator

scholarly journals Non-Contact Surface Roughness Measurement by Implementation of a Spatial Light Modulator

Sensors ◽  
2017 ◽  
Vol 17 (3) ◽  
pp. 596 ◽  
Author(s):  
Laura Aulbach ◽  
Félix Salazar Bloise ◽  
Min Lu ◽  
Alexander Koch
Keyword(s):  
Surface Roughness ◽  
Contact Surface ◽  
Spatial Light Modulator ◽  
Roughness Measurement ◽  
Light Modulator ◽  
Surface Roughness Measurement

scholarly journals Snapshot multidimensional photography through active optical mapping

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Jongchan Park ◽  
Xiaohua Feng ◽  
Rongguang Liang ◽  
Liang Gao
Keyword(s):  
Spatial Light Modulator ◽  
Optical Mapping ◽  
Incident Light ◽  
Image Sensor ◽  
Image Sensors ◽  
Light Modulator ◽  
Optical Fields ◽  
Ultrafast Imaging ◽  
Acquisition Scheme ◽  
Other Information

Abstract Multidimensional photography can capture optical fields beyond the capability of conventional image sensors that measure only two-dimensional (2D) spatial distribution of light. By mapping a high-dimensional datacube of incident light onto a 2D image sensor, multidimensional photography resolves the scene along with other information dimensions, such as wavelength and time. However, the application of current multidimensional imagers is fundamentally restricted by their static optical architectures and measurement schemes—the mapping relation between the light datacube voxels and image sensor pixels is fixed. To overcome this limitation, we propose tunable multidimensional photography through active optical mapping. A high-resolution spatial light modulator, referred to as an active optical mapper, permutes and maps the light datacube voxels onto sensor pixels in an arbitrary and programmed manner. The resultant system can readily adapt the acquisition scheme to the scene, thereby maximising the measurement flexibility. Through active optical mapping, we demonstrate our approach in two niche implementations: hyperspectral imaging and ultrafast imaging.

A high-end mask writer using a spatial light modulator

2005 ◽  
Author(s):  
Ulric B. Ljungblad ◽  
Per Askebjer ◽  
Tord Karlin ◽  
Tor Sandstrom ◽  
Henrik Sjoeberg
Keyword(s):  
Spatial Light Modulator ◽  
Light Modulator

Generation of vector beams array with a single spatial light modulator

2021 ◽  
pp. 126915
Author(s):  
Lijiao Guo ◽  
Zhiqing Feng ◽  
Yating Fu ◽  
Changjun Min
Keyword(s):  
Spatial Light Modulator ◽  
Light Modulator ◽  
Vector Beams
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