Related Experiment Video
Updated: Jul 7, 2026
06:26
Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
Published on: May 15, 2017
Reflective integrated optical elements produced by ion exchange in glass.
Applied Optics
|February 21, 2008
Summary
Waveguide achromatic elements using total internal reflection were designed with parabolic and elliptical boundaries. The parabolic design, fabricated via ion exchange, shows effective focusing and optical fiber compatibility.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Total internal reflection is crucial for optical device functionality.
- Waveguide achromatic elements are essential for chromatic aberration correction in optical systems.
Purpose of the Study:
- To explore the implementation of waveguide achromatic elements using total internal reflection.
- To propose and analyze parabolic and elliptical boundary geometries for these elements.
Main Methods:
- Theoretical analysis of parabolic and elliptical boundary geometries.
- Fabrication of a parabolic boundary waveguide using selective ion exchange.
- Experimental demonstration of focusing capabilities and numerical aperture compatibility.
Main Results:
- The parabolic boundary geometry was successfully fabricated.
- Demonstrated focusing capabilities of the parabolic boundary.
- Confirmed compatibility of the numerical aperture with standard optical fibers.
Conclusions:
- Total internal reflection is a viable mechanism for creating waveguide achromatic elements.
- The parabolic boundary offers promising performance for optical integration.
- Fabricated elements show potential for practical applications in optical systems.
Related Concept Videos
01:05Total Internal Reflection Fluorescence Microscopy
Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
01:09Ion-Exchange Chromatography
Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
01:17Ion Exchange
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or basic...