PMID- 23913059 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20140522 LR - 20181023 IS - 1539-4522 (Electronic) IS - 1559-128X (Linking) VI - 52 IP - 22 DP - 2013 Aug 1 TI - Infrared/microwave (IR/MW) micromirror array beam combiner design and analysis. PG - 5411-9 LID - 10.1364/AO.52.005411 [doi] AB - We investigated the design method of an infrared (IR)/microwave (MW) micromirror array type of beam combiner. The size of micromirror is in microscopic levels and comparable to MW wavelengths, so that the MW will not react in these dimensions, whereas the much shorter optical wavelengths will be reflected by them. Hence, the MW multilayered substrate was simplified and designed using transmission line theory. The beam combiner used an IR wavefront-division imaging technique to reflect the IR radiation image to the unit under test (UUT)'s pupil in a parallel light path. In addition, the boresight error detected by phase monopulse radar was analyzed using a moment-of method (MoM) and multilevel fast multipole method (MLFMM) acceleration technique. The boresight error introduced by the finite size of the beam combiner was less than 1 degrees . Finally, in order to verify the wavefront-division imaging technique, a prototype of a micromirror array was fabricated, and IR images were tested. The IR images obtained by the thermal imager verified the correctness of the wavefront-division imaging technique. FAU - Tian, Yi AU - Tian Y AD - School of Opto-Electronics, Beijing Institute of Technology, Beijing, China. ty.hit.edu@163.com FAU - Lv, Lijun AU - Lv L FAU - Jiang, Liwei AU - Jiang L FAU - Wang, Xin AU - Wang X FAU - Li, Yanhong AU - Li Y FAU - Yu, Haiming AU - Yu H FAU - Feng, Xiaochen AU - Feng X FAU - Li, Qi AU - Li Q FAU - Zhang, Li AU - Zhang L FAU - Li, Zhuo AU - Li Z LA - eng PT - Journal Article PL - United States TA - Appl Opt JT - Applied optics JID - 0247660 EDAT- 2013/08/06 06:00 MHDA- 2013/08/06 06:01 CRDT- 2013/08/06 06:00 PHST- 2013/08/06 06:00 [entrez] PHST- 2013/08/06 06:00 [pubmed] PHST- 2013/08/06 06:01 [medline] AID - 259621 [pii] AID - 10.1364/AO.52.005411 [doi] PST - ppublish SO - Appl Opt. 2013 Aug 1;52(22):5411-9. doi: 10.1364/AO.52.005411.