Proceedings ArticleDOI
Fabrication of multilevel spiral phase plates by focused ion beam milling
V. Pramitha,Anand Vijayakumar,Shanti Bhattacharya +2 more
- Vol. 8769, pp 480-486
TLDR
In this article, a focused Ga + ion beam was used to mill a multilevel spiral phase plate at an acceleration voltage of 30 kV on an indium-tin-oxide coated glass plate.Abstract:
A focused Ga + ion beam is used to mill a multilevel spiral phase plate at an acceleration voltage of 30 kV. Circular spiral phase plate with eight levels is fabricated directly on an indium-tin-oxide coated glass plate. Scanning electron microscopy images demonstrate the realization of multilevel phase plate on glass plate using focused ion beam milling.read more
Citations
More filters
Journal ArticleDOI
Generation and decomposition of scalar and vector modes carrying orbital angular momentum: a review
Srinivas Pachava,Raghu Dharmavarapu,Raghu Dharmavarapu,Anand Vijayakumar,Anand Vijayakumar,Sruthy Jayakumar,Amogh Manthalkar,Awakash Dixit,Nirmal K. Viswanathan,Balaji Srinivasan,Shanti Bhattacharya +10 more
TL;DR: In this article, the authors address the needs of scientists and engineers who desire to generate/detect OAM modes and are looking for the technique (active or passive) best suited for their application.
Journal ArticleDOI
Direct patterning of vortex generators on a fiber tip using a focused ion beam
Pramitha Vayalamkuzhi,Shanti Bhattacharya,Ulrike Eigenthaler,Kahraman Keskinbora,C. T. Samlan,Michael Hirscher,Joachim P. Spatz,Nirmal K. Viswanathan +7 more
TL;DR: The realization of spiral phase optical elements on the cleaved end of an optical fiber by focused ion beam milling is presented and are expected to be promising candidates for all-fiber beam shaping and optical trapping applications.