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Inside Back Cover: Giant two‐photon absorption in monolayer MoS 2 (Laser Photonics Rev. 9(4)/2015)
Publication year - 2015
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.201570047
Subject(s) - photonics , monolayer , laser , absorption (acoustics) , cover (algebra) , optoelectronics , photon , two photon absorption , saturable absorption , materials science , layer (electronics) , physics , optics , nanotechnology , fiber laser , engineering , mechanical engineering
The MoS 2 monolayer and few‐layer show entirely distinct nonlinear absorption modulations for the ultrashort pulses at near infrared region. Unlike the general idea that the thick (optical) substance blocks more light while the thinner substance blocks less, the layered MoS2 works in an opposite way – the thick (few‐layer) MoS 2 allows light transmit (i.e., saturable absorption), while the thinnest (monolayer) MoS 2 absorbs more light (two‐photon absorption). (Picture: Yuanxin Li et al., 10.1002/lpor.201500052 pp. 427–434, in this issue)