Demonstation of Optical Bistability with a Nonlinear Frustrated-Total-Reflection Filter
M. Haelterman and C. Waelbroeck
The nonlinear frustrated-total-reflection filter is proposed as a remarkably simple all-optical computing element. Potential advantages of this device over nonlinear prism couplers and nonlinear thin films are presented. Optical bistability is experimentally demonstrated by using a liquid crystal as an optically nonlinear material (12 Refs.)
http://www.ulb.ac.be/polytech/soa/MARC/abs-p7.html

frustrated total reflection
Light leakage at a total reflecting interface when another highly refractive medium is brought close to it.
http://www.laurin.com/DataCenter/Dictionary/CD/df/frustore.h...
Check out their glossary, it's quite extensive!


For Gitterkoppler, I found only one instance of “lattice coupler” (see below)
Biomolecular Interaction Analysis-bioaffinity measurement device (SPR, lattice coupler)
www.ibmt.fhg.de/ibmt4_e.html

However, Gitter is often translated as “grating” in an optical context. A search on “grating coupler” yielded some 2,400 hits. The first URL below might be of particular interest to you.

http://www.photond.com/products/grating/gcm2spec.htm
www.gtrc.gatech.edu/abstracts/1745.html
www.jate.u-szeged.hu/~natosfp/sensor_ani.htm
www.jate.u-szeged.hu/~natosfp/pplan.htm

HTH!