Exceptional Points in Random-Defect Phonon Lasers

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 量子光学重点实验室

	Exceptional Points in Random-Defect Phonon Lasers
	Kuang, L. -M.; Jing, H.; Ozdemir, S. K.; Lu, H.; Nori, Franco
刊名	Phys. Rev. Appl.
	2017
卷号	8 期号:4
通讯作者	sko9@psu.edu ; fnori@riken.jp ; jinghui73@gmail.com
英文摘要	Intrinsic defects in optomechanical devices are generally viewed to be detrimental for achieving coherent amplification of phonons, and great care has thus been exercised in fabricating devices and materials with no (or a minimal number of) defects. Contrary to this view, here we show that, by surpassing an exceptional point (EP), both the mechanical gain and the phonon number can be enhanced despite increasing defect losses. This counterintuitive effect, well described by an effective non-Hermitian phonon-defect model, provides a mechanical analog of the loss-induced purely optical lasing. This opens the way to operating random-defect phonon devices at EPs.
收录类别	SCI
资助信息	973 Program [2013CB921804]; National Natural Science Foundation of China [11375060, 11434011, 11474087, 11774086]; ARO Grant [W911NF-16-1-0339]; Pennsylvania State University Materials Research Institute; RIKEN iTHES Project; MURI Center for Dynamic Magneto-Optics via AFOSR [FA9550-14-1-0040]; IMPACT program of JST, CREST [JPMJCR1676]; JSPS; Sir John Templeton Foundation
WOS记录号	WOS:000413862800004
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/27779]
专题	上海光学精密机械研究所_量子光学重点实验室
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Kuang, L. -M.,Jing, H.,Ozdemir, S. K.,et al. Exceptional Points in Random-Defect Phonon Lasers[J]. Phys. Rev. Appl.,2017,8(4).
APA	Kuang, L. -M.,Jing, H.,Ozdemir, S. K.,Lu, H.,&Nori, Franco.(2017).Exceptional Points in Random-Defect Phonon Lasers.Phys. Rev. Appl.,8(4).
MLA	Kuang, L. -M.,et al."Exceptional Points in Random-Defect Phonon Lasers".Phys. Rev. Appl. 8.4(2017).