A novel defect mode is realized in a three-layered structure: a left-handed cholesteric liquid crystal (CLC) layer sandwiched between right-handed CLC films (see Figure). The defect states emerge, and the photonic density of state is resonantly enhanced when the defect mode coincides with the edge mode. The lasing from this enhanced mode is found to show a lower threshold value.
If you can't find a tool you're looking for, please click the link at the top of the page to "Go to old article view". Alternatively, view our Knowledge Base articles for additional help. Your feedback is important to us, so please let us know if you have comments or ideas for improvement.