Potential for GPC-based laser direct writing.

Andrew Bañas, Jesper Glückstad

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


Generalized Phase Contrast (GPC) is an efficient light shaping method for generating speckle-free contiguous distributions useful in diverse applications such as static beam shaping, optical manipulation or for two-photon excitation in optogenetics. GPC increases the utilization of typical Gaussian lasers for such applications by using phase modulation as opposed to amplitude truncating masks. Here, we explore GPC’s potential for increasing the yield of micropscopic 3D printing also known as direct laser writing. Many light based additive manufacturing techniques, adopt a point scanning approach which uses up a lot of time and is prone to roughness in the output. A high-speed layer based approach based on GPC may boost the printing speeds by 10x to 100x, making microscopic 3D printing more practical for industry and manufacture. Such an increase in printing speed would extend its use out of research, and potentially allow advanced lab-produced components in everyday consumer products. © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Original languageEnglish
Title of host publicationProceedings of SPIE
EditorsBo Gu, Henry Helvajian, Alberto Piqué
PublisherSPIE - International Society for Optical Engineering
Publication date2016
Article number973809
Publication statusPublished - 2016
EventLaser 3D Manufacturing III - San Francisco, California, United States
Duration: 13 Feb 201613 Feb 2016


ConferenceLaser 3D Manufacturing III
CountryUnited States
CitySan Francisco, California


  • Laser direct writing
  • Additive manufacturing
  • Generalized Phase Contrast

Fingerprint Dive into the research topics of 'Potential for GPC-based laser direct writing.'. Together they form a unique fingerprint.

Cite this