Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

Session Overview
MOS 8: Manufacturing of Optical Systems: Optical Microsystems
Wednesday, 28/06/2017:
10:30 - 11:45

Session Chair: Sven Kiontke, asphericon GmbH
Location: Room 21, 2nd floor, ICM

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10:30 - 10:45

3D direct laser writing of micro corner cube retroreflectors

Yann Tanguy, Fabian Niesler, Michael Thiel

Nanoscribe GmbH, Germany

Micro corner cube retroreflectors were written by two-photon laser lithography, and its process optimised to obtain suitable manufacturing times, optical surfaces and shape accuracy to serve as polymer master for industrial replication.

10:45 - 11:00

Refractive Index Modulation in Media with Saturable Photosensitivity

Sergiy Mokhov

Univ. of Central Florida, CREOL - the College of Optics

Bragg gratings are fabricated by thermal treatment of glass specimen initially exposed by spatially modulated UV dosage. Obtained refractive index modulation depends on dosage nonlinearly due to saturability of photosensitivity. An analytical expression for the efficient amplitude of Bragg modulation is derived.

11:00 - 11:15

Computer-Controlled Process of Off-Axis Asperics Production with Asphericity up to 20 mm

Aleksandr P. Semenov, Magomed A. Abdulkadyrov, Sergey P. Belousov, Aleksander N. Ignatov, Vladimir E. Patrikeev

JSC LZOS/ Russia, Russian Federation

Technology using automated system with computer control and a set of special instruments, which allows aspherization of optical elements with deviation from the nearest sphere up to 20 mm, was developed.

11:15 - 11:30

Aspherical high-speed varifocal mirror for catadioptric miniature telephoto optics

Matthias C Wapler, Florian Lemke, Gazmed Alia, Ulrike Wallrabe

University of Freiburg, Germany

We present a varifocal mirror using a glass-piezo composite membrane. Its two degrees of freedom enable dynamic aspherical correction in addition to the focal range of ±8dpt, 9mm aperture and millisecond-scale response time. We demonstrate it as a secondary mirror in a catadioptric objective with f=68mm, F=3 and 16.6mm thickness.

11:30 - 11:45

Beam shapers for fractional topological charges

Rebeca Tudor1,2, Cristian Kusko2, Mihai Kusko2, Mona Mihailescu3, Andrei Avram2

1University of Bucharest, Romania, Romania; 2National Institute for R&D in Microtechnology IMT, Bucharest, Romania; 3Politehnica University of Bucharest, Physics Department, Bucharest, Romania

We present fabrication and characterization of reflective beam shapers which generate fractional optical vortices. These diffractive optical elements are designed for visible light and introduce a π phase shift in the optical wavefront, and as consequence a non-integer topological charge. The fabricated components have potential applications in beam shaping, particle rotation, communication.

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