Ultrathin broadband nearly perfect absorber with symmetrical coherent illumination

Optics Express
Mingbo PuXiangang Luo

Abstract

As highlighted by recent articles [Phys. Rev. Lett. 105, 053901 (2010) and Science 331, 889-892 (2011)], the coherent control of narrowband perfect absorption in intrinsic silicon slab has attracted much attention. In this paper, we demonstrate that broadband coherent perfect absorber (CPA) can be achieved by heavily doping an ultrathin silicon film. Two distinct perfect absorption regimes are derived with extremely broad and moderately narrow bandwidth under symmetrical coherent illumination. The large enhancement of bandwidth may open up new avenues for broadband applications. Subsequently, interferometric method is used to control the absorption coherently with extremely large contrast between the maximum and minimum absorptance. Compared with the results in literatures, the thin film CPAs proposed here show much more flexibility in both operation frequency and bandwidth.

References

Jul 13, 2005·Optics Letters·J KimG Angelow
Jun 4, 2008·Physical Review Letters·N I LandyW J Padilla
Sep 28, 2010·Physical Review Letters·Y D ChongA D Stone
Nov 24, 2011·Physical Review Letters·Y D Chong, A D Stone

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Citations

Jun 2, 2014·Nature Materials·Guancong MaPing Sheng
Aug 5, 2015·Scientific Reports·Junho YoonChang Kwon Hwangbo
Oct 28, 2015·Scientific Reports·Zeyu ZhaoXiangang Luo
Jun 13, 2014·Optics Express·Jianfa ZhangShiqiao Qin
Jan 7, 2017·Optics Letters·Lorelle N PyeAyman F Abouraddy
Jan 18, 2018·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Yinghui GuoXiangang Luo
Jun 20, 2019·Advanced Materials·Mengxin RenJingjun Xu
Jul 24, 2020·Advanced Materials·Ziying ZhangAndrea Alù
Sep 15, 2015·Optics Express·Myoung Jin JungSeok Ho Song
Jul 26, 2017·Scientific Reports·Alok GhanekarYi Zheng
May 3, 2018·Optics Express·Sanjeeb DeyDesai Narayana Rao
Aug 15, 2014·Optics Letters·Ming KangHui-Tian Wang
Jul 22, 2015·Physical Review Letters·Yoshiro UradeMasao Kitano
Aug 10, 2017·Optics Express·Weiren ZhuRonghong Jin
Apr 22, 2016·Light, Science & Applications·Maria PapaioannouNikolay I Zheludev
May 6, 2019·Optics Express·Ming KangJing Chen
Aug 14, 2013·Optics Express·Heeso NohHui Cao
Dec 10, 2014·Optics Letters·Omer Kotlicki, Jacob Scheuer
Aug 15, 2015·Optics Letters·Shun-Tung Yen, Pei-Kang Chung
Sep 29, 2018·Scientific Reports·Patrick J BradleyYang Hao

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