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Title: Far Infrared Synchrotron Near-Field Nanoimaging and Nanospectroscopy

Journal Article · · ACS Photonics
ORCiD logo [1];  [2];  [2]; ORCiD logo [3];  [4]
  1. Univ. of Colorado, Boulder, CO (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Univ. of Colorado, Boulder, CO (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)

Scattering scanning near-field optical microscopy ($$s$$-SNOM) has emerged as a powerful imaging and spectroscopic tool for investigating nanoscale heterogeneities in biology, quantum matter, and electronic and photonic devices. However, many materials are defined by a wide range of fundamental molecular and quantum states at far-infrared (FIR) resonant frequencies currently not accessible by $$s$$-SNOM. Here we show ultrabroadband FIR $$s$$-SNOM nanoimaging and spectroscopy by combining synchrotron infrared radiation with a novel fast and low-noise copper-doped germanium (Ge:Cu) photoconductive detector. This approach of FIR synchrotron infrared nanospectroscopy (SINS) extends the wavelength range of $$s$$-SNOM to 31 μm (320 cm-1, 9.7 THz), exceeding conventional limits by an octave to lower energies. We demonstrate this new nanospectroscopic window by measuring elementary excitations of exemplary functional materials, including surface phonon polariton waves and optical phonons in oxides and layered ultrathin van der Waals materials, skeletal and conformational vibrations in molecular systems, and the highly tunable plasmonic response of graphene.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704; AC02-05CH11231
OSTI ID:
1439299
Alternate ID(s):
OSTI ID: 1526534
Report Number(s):
BNL-205714-2018-JAAM
Journal Information:
ACS Photonics, Vol. 5, Issue 7; ISSN 2330-4022
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 59 works
Citation information provided by
Web of Science

References (45)

Scanning Interferometric Apertureless Microscopy: Optical Imaging at 10 Angstrom Resolution journal August 1995
Near-field probing of vibrational absorption for chemical microscopy journal May 1999
Performance of visible and mid-infrared scattering-type near-field optical microscopes journal June 2003
Nano-optical imaging and spectroscopy of order, phases, and domains in complex solids journal December 2012
Infrared vibrational nanocrystallography and nanoimaging journal October 2016
Vibrational nano-spectroscopic imaging correlating structure with intermolecular coupling and dynamics journal April 2014
High-spatial-resolution mapping of catalytic reactions on single particles journal January 2017
Mott Transition in VO2 Revealed by Infrared Spectroscopy and Nano-Imaging journal December 2007
Nanotextured phase coexistence in the correlated insulator V2O3 journal September 2016
Gate-tuning of graphene plasmons revealed by infrared nano-imaging journal June 2012
Optical nano-imaging of gate-tunable graphene plasmons journal June 2012
Tunable Phonon Polaritons in Atomically Thin van der Waals Crystals of Boron Nitride journal March 2014
Polaritons in van der Waals materials journal October 2016
A cryogenic scattering-type scanning near-field optical microscope journal February 2013
Ultrafast Dynamics of Surface Plasmons in InAs by Time-Resolved Infrared Nanospectroscopy journal July 2014
Ultrafast multi-terahertz nano-spectroscopy with sub-cycle temporal resolution journal October 2014
Nanoscale Probing of Dynamics in Local Molecular Environments journal October 2015
Ultrafast Nanoimaging of the Photoinduced Phase Transition Dynamics in VO 2 journal April 2016
Atomic-force-microscope-compatible near-field scanning microwave microscope with separated excitation and sensing probes journal June 2007
Terahertz Near-Field Nanoscopy of Mobile Carriers in Single Semiconductor Nanodevices journal November 2008
Nanoscale electrodynamics of strongly correlated quantum materials journal November 2016
Far-Infrared Spectroscopy of Protein Higher-Order Structures journal November 2010
Nano-FTIR Absorption Spectroscopy of Molecular Fingerprints at 20 nm Spatial Resolution journal July 2012
Terahertz Nanoscopy of Plasmonic Resonances with a Quantum Cascade Laser journal August 2017
Spectroscopic THz near-field microscope journal January 2008
Quantitative coherent scattering spectra in apertureless terahertz pulse near-field microscopes journal July 2012
Dielectric probe for scattering-type terahertz scanning near-field optical microscopy journal October 2013
Narrow-band near-field nanoscopy in the spectral range from 1.3 to 8.5 THz journal March 2016
Infrared nanoscopy down to liquid helium temperatures journal March 2018
Ultrabroadband infrared nanospectroscopic imaging journal May 2014
Broadband-infrared assessment of phonon resonance in scattering-type near-field microscopy journal January 2011
Optical constants of silica glass from extreme ultraviolet to far infrared at near room temperature journal January 2007
Infrared dielectric anisotropy and phonon modes of sapphire journal March 2000
Phonon and Raman scattering of two-dimensional transition metal dichalcogenides from monolayer, multilayer to bulk material journal January 2015
Theoretical studies of the vibrational properties of the 3,4,9,10,-perylene tetracarboxylic dianhydride (PTCDA) molecule journal May 2003
Phase-Resolved Surface Plasmon Interferometry of Graphene journal July 2014
Highly confined low-loss plasmons in graphene–boron nitride heterostructures journal December 2014
Ultrafast optical switching of infrared plasmon polaritons in high-mobility graphene journal March 2016
Electrodynamics of correlated electron materials journal June 2011
Band-like temperature dependence of mobility in a solution-processed organic semiconductor journal August 2010
Graphene Plasmonics: Challenges and Opportunities journal February 2014
Graphene Plasmonics for Terahertz to Mid-Infrared Applications journal January 2014
Naturally hyperbolic journal March 2015
A far-infrared Fourier transform spectrometer with an antenna-coupled niobium bolometer journal October 2007
Measuring optical frequencies in the 0–40 THz range with non-synchronized electro–optic sampling journal October 2007

Cited By (6)

Ultrabroadband infrared near-field spectroscopy and imaging of local resonators in percolative gold films journal January 2019
Comparison of active and passive methods for the infrared scanning near-field microscopy journal April 2019
Infrared nanospectroscopic imaging in the rotating frame journal January 2019
Probing Polaritons in 2D Materials with Synchrotron Infrared Nanospectroscopy journal December 2019
Modern Scattering‐Type Scanning Near‐Field Optical Microscopy for Advanced Material Research journal April 2019
Nanoimaging and Nanospectroscopy of Polaritons with Time Resolved s ‐SNOM journal September 2019

Figures / Tables (4)