University of Illinois

Asociacion Centro De Investigación Cooperativa En Nanosciencias (Cic Nanogune)

Asociación Centre De Investigación Cooperativa En Nanociencias, Cic Nanogune

Asociación Centro De Investigación Cooperativa

Asociacion-Centro De Investigacion Cooperativa En Nanociencias-Cic Nanogune

Martin Schnell

Paul Scott Carney

Rainer Hillenbrand

Rohit Bhargava

Edward Yoxall

Methods and apparatus are provided for imaging a response of a sample to radiative heating. A method in accordance with one embodiment has steps of: illuminating a first area of the sample with a radiative heating beam; illuminating a portion of the first area with a probe beam; collecting light exiting the sample due to interaction of the probe beam with the sample; superimposing the light exiting the sample with a reference beam derived from the probe beam, wherein the reference is characterized by an optical phase relative to the probe beam; detecting a spatial portion of the light exiting the sample and the reference beam with at least one detector to generate an interference signal; and processing the interference signal to obtain an image of the sample associated with absorption of the radiative heating beam.

Infrared-optical hybrid imaging technology for all-digital histopathology

The invention relates to a device for conducting near-field optical measurements of a sample comprising a wavelength-tunable monochromatic light source. Further the invention relates to methods for measuring the near-field using such a device.

Near field optical microscope for acquiring spectra

Methods and apparatus for imaging a phase or amplitude that characterizes a scattered field emanating from a physical medium. A local probe is stepped to a plurality of successive probe positions and illuminated with an illuminating beam, while a specified phase function is imposed on a reference beam relative to the illuminating beam. A field associated with the scattered field is superimposed with the reference beam and the detection of both yields a detected signal which is recorded as a function of probe position in order to obtain a hologram. The holograph is transformed, filtered, and retransformed to generate an image. Alternatively, the illuminating beam may directly illuminate successive positions of the physical medium.

Synthetic optical holography

Growing community of inventors

Berlin, Germany

Martin Schnell