Toward superfast three-dimensional optical metrology with digital micromirror device platforms

Note: Toward multiple addressable optical trapping.

We describe a setup for addressable optical trapping in which a laser source is focused on a digital micromirror device and generates an optical trap in a microfluidic cell. In this paper, we report a proof-of-principle single beam/single micromirror/single three-dimensional trap arrangement that should serve as the basis for a multiple-trap instrument.

Compact single mode tunable laser using a digital micromirror device.

The wavelength tuning properties of a tunable external cavity laser based on multiplexed volume holographic gratings and a commercial micromirror device are reported. The 3x3x3 cm(3) laser exhibits single mode operation in single or multi colors between 776 nm and 783 nm with less than 7.5 MHz linewidth, 37 mW output power, 50 μs rise/fall time constant and a maximum switching rate of 0.66 KHz ...

Digital micromirror device as a diffractive reconfigurable optical switch for telecommunication

Fabrication of a Micromirror with Sidewall Electrodes

We designed and fabricated a micromirror with sidewall electrodes in the Cornell NanoScale Science & Technology Facility (CNF) for endoscopic application. The micromirror can perform 2-dimensional scanning. The static and dynamic performances of the micromirror are improved over that of a micromirror without sidewall electrodes. In addition, undesired spring-softening effect that is commonly fo...

Infrared Holography for Wavefront Reconstruction and Interferometric Metrology

Long wavelength interferometry has been widely applied in different fields, such as infrared optics, infrared transmitting materials, high-reflective multilayer dielectric coatings for highpower laser systems. In optical metrology, long-wave interferometers are also employed for shape measurement of reflective rough surfaces and for testing optical systems that requires deep aspherics. An advan...