@article{oai:repo.qst.go.jp:00048902,
 author = {永島, 圭介 and 坪内, 雅明 and 越智, 義浩 and 圓山, 桃子 and 永島 圭介 and 坪内 雅明 and 越智 義浩 and 圓山 桃子},
 issue = {13},
 journal = {journal of applied physics},
 month = {Apr},
 note = {We have proposed an improved contact grating device for generating terahertz waves efficiently and have succeeded in developing the device with a very high diffraction efficiency and a wide spectral width. This device has a bi-angular filter and a Fabry-Perot-type structure, which are composed of dielectric multilayers. The bi-angular filter is designed to reflect the 0th-order wave and transmit the -1st-order diffraction wave. Numerical calculations indicate that the new device has a maximum diffraction efficiency over 99% and a spectral width of approximately 20 nm. We measured a high efficiency of 90% over a broad spectral range using a fabricated device.},
 pages = {123104-1--123104-6},
 title = {IMPROVEMENT OF CONTACT GRATING DEVICE FOR EFFICIENT TERAHERTZ WAVE GENERATION USING BI-ANGULAR FILTER},
 volume = {123},
 year = {2018}
}