Interference Confocal Microscope Integrated with Spatial Phase Shifter

Interference Confocal Microscope Integrated with Spatial Phase Shifter

We present an interference confocal microscope (ICM) with a new single-body four-step simultaneous phase-shifter device designed to obtain high immunity to vibration. The proposed ICM combines the respective advantages of simultaneous phase shifting interferometry and bipolar differential confocal microscopy to obtain high axis resolution, large dynamic range, and reduce the sensitivity to vibr...

Integrated photoacoustic, confocal, and two-photon microscope.

The invention of green fluorescent protein and other molecular fluorescent probes has promoted applications of confocal and two-photon fluorescence microscopy in biology and medicine. However, exogenous fluorescence contrast agents may affect cellular structure and function, and fluorescence microscopy cannot image nonfluorescent chromophores. We overcome this limitation by integrating optical-...

Towards Optical Biopsies with an Integrated Fibered Confocal Fluorescence Microscope

This paper presents an integrated endoscope-compatible Fibered Confocal Fluorescence Microscope (FCFM) for medical imaging, the F400. In situ high resolution images can be obtained thanks to a set of flexible miniaturized optical probes of 0.5 to 1.5 mm diameter that can be inserted through the working channel of an endoscope. We briefly present in this paper the FCFM system, with a particular ...

Phase contrast and interference microscopy with the electron microscope.

Waveguide-integrated MEMS-based phase shifter for phased array antenna

This paper investigates a new concept of waveguide-based W-band phase shifters for applications in phased array antennas. The phase-shifters are based on a tuneable bilateral finline bandpass filter with 22 MEMS (microelectromechanical system) switching elements, integrated into a custom-made WR-12 waveguide with a replaceable section, whose performance is also investigated in this paper. The i...