Martin Wagner
University of California, San Diego
Terahertz radiationSemiconductorPlasmonOpticsPhysicsQuantum dotPolaritonInfraredNanotechnologyUltrashort pulseAtomic physicsChemistryMaterials sciencePhononCondensed matter physicsNano-Quantum wellGrapheneSpectroscopyOptoelectronicsGallium arsenideLaserExcitation
83Publications
22H-index
4,108Citations
Publications 80
Newest
#1Le Wang (Lehigh University)H-Index: 8
#2Martin WagnerH-Index: 22
Last. Xiaoji G. Xu (Lehigh University)H-Index: 17
view all 7 authors...
Source
#1Le Wang (Lehigh University)H-Index: 8
#2Martin WagnerH-Index: 22
Last. Xiaoji G. Xu (Lehigh University)H-Index: 17
view all 7 authors...
Source
#1Martin WagnerH-Index: 22
#2Devon S. Jakob (Lehigh University)H-Index: 6
Last. Xiaoji G. Xu (Lehigh University)H-Index: 17
view all 9 authors...
Scattering-type scanning near-field optical microscopy (s-SNOM) enables infrared spectroscopy at 10–20 nm spatial resolution through elastic light scattering. Coupled with an infrared light source, s-SNOM characterizes chemical compositions or probes nanoscale photonic phenomena on length scales 2 orders of magnitude below the diffraction limit. However, widespread use of s-SNOM as an analytical standard tool has been restrained to a large extent by the lack of a bright and affordable broadband ...
Source
#1Aaron Sternbach (Columbia University)H-Index: 10
#2J. Hinton (UCSD: University of California, San Diego)H-Index: 1
Last. Dimitri Basov (Columbia University)H-Index: 86
view all 14 authors...
We report on the first implementation of ultrafast near field measurements carried out with the transient pseudoheterodyne detection method (Tr-pHD). This method is well suited for efficient and artifact free pump-probe scattering-type near-field optical microscopy with nanometer scale resolution. The Tr-pHD technique is critically compared to other data acquisition methods and found to offer significant advantages. Experimental evidence for the advantages of Tr-pHD is provided in the near-IR fr...
Source
#1Aaron SternbachH-Index: 10
#2James HintonH-Index: 6
Last. Dimitri BasovH-Index: 86
view all 14 authors...
We report on the first implementation of ultrafast near field nanoscopy carried out with the transient pseudoheterodyne detection method (Tr-pHD). This method is well suited for efficient and artifact free pump-probe scattering-type near-field optical microscopy with nanometer scale resolution. The Tr-pHD technique is critically compared to other data acquisition methods and found to offer significant advantages. Experimental evidence for the advantages of Tr-pHD is provided in the Near-IR frequ...
#1Le Wang (Lehigh University)H-Index: 8
#2Haomin Wang (Lehigh University)H-Index: 31
Last. Xiaoji G. Xu (Lehigh University)H-Index: 17
view all 6 authors...
Nondestructive chemical and mechanical measurements of materials with ~10-nm spatial resolution together with topography provide rich information on the compositions and organizations of heterogeneous materials and nanoscale objects. However, multimodal nanoscale correlations are difficult to achieve because of the limitation on spatial resolution of optical microscopy and constraints from instrumental complexities. We report a novel noninvasive spectroscopic scanning probe microscopy method—pea...
Source
#1Siyuan Dai (UCSD: University of California, San Diego)H-Index: 22
#2Qiong Ma (MIT: Massachusetts Institute of Technology)H-Index: 27
Last. Alexander McLeod (UCSD: University of California, San Diego)H-Index: 29
view all 23 authors...
Uniaxial materials whose axial and tangential permittivities have opposite signs are referred to as indefinite or hyperbolic media. While hyperbolic responses are normally achieved with metamaterials, hexagonal boron nitride (hBN) naturally possesses this property due to the anisotropic phonons in the mid-infrared. Using scattering-type scanning near-field optical microscopy, we studied polaritonic phenomena in hBN. We performed infrared nano-imaging of highly confined and low-loss hyperbolic ph...
Source
Source
#1Martin WagnerH-Index: 22
#2Mengkun Liu (SBU: Stony Brook University)H-Index: 37
Near- and mid-infrared plasmonics are exciting research areas with applications in nanoscale energy concentration, sensing or ultrafast switching for telecommunication. Now, a new efficient way to manipulate plasmon resonances in semiconductor nanoarrays at ultrafast timescales has been found.
Source
#1Guangxin Ni (UCSD: University of California, San Diego)H-Index: 25
#2Lei Wang (Columbia University)H-Index: 58
Last. Dimitri BasovH-Index: 86
view all 13 authors...
Non-equilibrium photoinduced plasmons in a high-mobility graphene monolayer are investigated at infrared wavelengths.
Source
This website uses cookies.
We use cookies to improve your online experience. By continuing to use our website we assume you agree to the placement of these cookies.
To learn more, you can find in our Privacy Policy.