Absorption Spectrometry Using a Diffractive Optical Element Constructed by Gel Electrophoresis

Absorption spectrometry using a diffractive optical element constructed by gel electrophoresis.

A novel diffractive optical element was constructed by means of gel electrophoresis. Five capillaries were filled with a methylene blue solution and inserted into a slab gel. An electrical potential was then applied to the slab gel. Methylene Blue in the capillaries underwent electrophoretic migration, forming clear blue bands in the gel. The bands functioned as a transmission grating, and diff...

Research on the Design of an Optical Information Storage Sensing System Using a Diffractive Optical Element

This paper introduces a compact optical information storage sensing system. Applications of this system include longitudinal surface plasmon resonance detection of gold nanorods with a single femtosecond laser in three-dimensional space as well as data storage. A diffractive optical element (DOE) is applied in the system to separate the recording-reading beam from the servo beam. This allows us...

Simultaneous multicolor image formation with a single diffractive optical element.

A design for a novel diffractive optical element (DOE) that can reconstruct three different intensity patterns when it is illuminated by three different wavelengths is presented. If the chosen wavelengths are red, green, and blue, full-color reconstruction capability is obtained. Reconstruction is achieved in the near field (Fresnel domain). Computer simulation results as well as experimental e...

Pulsed field gel electrophoresis using a double-decker gel system.

Pulsed field gel electrophoresis (PFGE) is capable of resolving large DNA molecules of up to two million nucleotides and is becoming a widely used technique in DNA studies (1—3). Three factors can potentially limit PFGE in a laboratory: 1. the cost of the apparatus, 2. reproducibility of electrophoretic conditions, and 3. unusually long electrophoretic time. To alleviate some of these problems ...

New analytical tools combining gel electrophoresis and mass spectrometry