High-speed femtosecond laser beam shaping based on binary holography using a digital micromirror device
Optics Letters, ISSN: 1539-4794, Vol: 40, Issue: 21, Page: 4875-4878
2015
- 54Citations
- 79Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations54
- Citation Indexes54
- 54
- CrossRef40
- Captures79
- Readers79
- 79
Article Description
In this Letter, we present a digital micromirror device (DMD)-based ultrafast beam shaper, i.e., DUBS. To our knowledge, the DUBS is the first binary laser beam shaper that can generate high-resolution (1140 × 912 pixels) arbitrary beam modes for femtosecond lasers at a rate of 4.2 kHz; the resolution and pattern rate are limited by the DMD. In the DUBS, the spectrum of the input pulsed laser is first angularly dispersed by a transmission grating and subsequently imaged to a DMD with beam modulation patterns; the transmission grating and a high-reflectivity mirror together compensate the angular dispersion introduced by the DMD. The mode of the output beam is monitored by a CCD camera. In the experiments, the DUBS is programmed to generate four different beam modes, including an Airy beam, Bessel beam, Laguerre-Gaussian (LG) beam, and a custom-designed "peace-dove" beam via the principle of binary holography. To verify the high shaping rate, the Airy beam and LG beam are generated alternately at 4.2 kHz, i.e., the maximum pattern rate of our DMD. The overall efficiency of the DUBS is measured to be 4.7%. With the high-speed and high-resolution beamshaping capability, the DUBS may find important applications in nonlinear microscopy, optical manipulation, and microscale/nanoscale laser machining, etc.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84957594751&origin=inward; http://dx.doi.org/10.1364/ol.40.004875; http://www.ncbi.nlm.nih.gov/pubmed/26512472; https://www.osapublishing.org/abstract.cfm?URI=ol-40-21-4875; https://www.osapublishing.org/viewmedia.cfm?URI=ol-40-21-4875&seq=0; https://opg.optica.org/abstract.cfm?URI=ol-40-21-4875; https://dx.doi.org/10.1364/ol.40.004875; https://opg.optica.org/ol/abstract.cfm?uri=ol-40-21-4875
The Optical Society
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