Concept

Homodyne detection

Related publications (40)

Simple Topology for Low-Voltage and Low-Power RF Quadrature Oscillators

A design technique for implementing a low-voltage and low-power quadrature oscillator operating at radio frequencies is proposed. The oscillator utilises a cascade of four stages of capacitive-source amplifiers to generate balanced quadrature signals. The ...

2004

DNA detection by integrable electronics

Carlotta Guiducci, Giampaolo Zuccheri

This paper presents a new electronic methodology to detect DNA hybridization for rapid identification of diseases, as well as food and environmental monitoring on a genetic base. The proposed solution exploits a new (electrical) capacitive measurement circ ...

2004

Adjustable illumination or detection beam pinhole for laser scanning microscope has two knife blades with triangular apertures moving in front of slit with lamp and optical detector

Theo Lasser, Thomas Sidler, Antonio Lopez, Ronald Gianotti

The invention relates to an adjustable pinhole, especially for the illumination beam path and/or detection beam path of a laser scanning microscope. Said pinhole consists of at least two planar basic components comprising articulation points in the form of ...

2004

Interferometer coordinate measurement system for use in measurement and machining tools has partially reflecting boundary surfaces within its measurement head with a separation shorter than the coherence length

Theo Lasser

The invention relates to an interferometer system (41), especially for use in a co-ordinate measuring system. Said interferometer system comprises, disposed in an illumination beam path, a pair of spaced-apart boundary surfaces (52, 53). A boundary surface ...

2004

Holographic refractive index detector for application in microchip-based separation systems

Nico de Rooij

A novel detection scheme for capillary electrophoresis on planar glass microchips is presented. The application of a holographic-based refractive index detector to the electrophoretic separation of carbohydrates is described. The microchip device consists ...

1998

Frequency-domain fluorescence lifetime imaging for endoscopic clinical cancer photodetection: Apparatus design and preliminary results

Hubert van den Bergh, Georges Wagnières, André Studzinski

We describe a new fluorescence imaging device for clin. cancer photodetection in hollow organs in which the tumor/normal tissue contrast is derived from the fluorescence lifetime of endogenous or exogenous fluorochromes. This fluorescence lifetime contrast ...

Springer US1997

Endoscopic frequency-domain fluorescence lifetime imaging for clinical cancer photodetection: apparatus design

Hubert van den Bergh, Georges Wagnières, André Studzinski

We describe a new fluorescence imaging device for clinical cancer photodetection in hollow organs in which the image contrast is derived from the fluorescence lifetime of the fluorochrome at each point in a 2D image. Lifetime images are created from a seri ...

1995

ROTATIONAL STATE-SELECTED VIBRATIONAL OVERTONE SPECTROSCOPY OF JET-COOLED MOLECULES

Thomas Rizzo

The combination of infrared-optical double resonance excitation with infrared laser assisted photofragment spectroscopy (IRLAPS) detection permits the measurement of rotationally resolved vibrational overtone spectra of jet-cooled CF3H. The IRLAPS detectio ...

1995

Ion Temperature-Measurements in a Tokamak by Collective Thomson Scattering

Basil Duval, Jonathan Bryan Lister, Antoine Pochelon, Roland Behn, Markus Siegrist

Collective Thomson scattering, using a high-power pulsed D2O laser at 385-mu-m and a heterodyne receiver system, has provided local ion temperature (T(i)) measurements of the plasma in the tokamak chauffage Alfven (TCA) tokamak. Recent improvements in the ...

1991

High resolution optical time domain reflectometry for the investigation of integrated optical devices

René Salathé, Paul Beaud

The authors report on a OTDR system using an infrared subpicosecond pulse source in conjunction with balanced heterodyne detection. Experimental results show a sensitivity of more than 100 dB and a resolution of 60 μm in air ...

IEE1988

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