Optical properties and devices articles within Nature Photonics

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• News & Views | 30 November 2023

  Large-angle twist effect

  A large-angle twist between two bilayer graphene films makes a sensitive and broadband infrared–terahertz detector as a result of interlayer screening and a crystal field-induced bandgap.

  • Bingchen Deng
  •  & Fengnian Xia

• Article | 21 September 2023

  Ultra-broadband photoconductivity in twisted graphene heterostructures with large responsivity

  Thanks to the unique properties of twisted double bilayer graphene heterostructures, an ultra-broadband photoconductivity spanning the spectral range of 2–100 μm with internal quantum efficiencies of approximately 40% at speeds of 100 kHz is reported.

  • H. Agarwal
  • , K. Nowakowski
  •  & F. H. L. Koppens

• Article | 25 August 2022

  Ultrafast intrinsic optical-to-electrical conversion dynamics in a graphene photodetector

  Researchers demonstrated a gate-tunable graphene photodetector with a bandwidth of up to 220 GHz. This was achieved by suppressing the ‘RC’ time constant using a resistive zinc oxide top gate.

  • Katsumasa Yoshioka
  • , Taro Wakamura
  •  & Norio Kumada

• Letter | 07 July 2022

  Giant effective Zeeman splitting in a monolayer semiconductor realized by spin-selective strong light–matter coupling

  Researchers show spin-susceptibility in monolayer MoSe₂ and demonstrate giant effective valley Zeeman splitting and nonlinearity for trion-polaritons.

  • T. P. Lyons
  • , D. J. Gillard
  •  & A. I. Tartakovskii

• Article | 26 May 2022

  Spontaneous-polarization-induced photovoltaic effect in rhombohedrally stacked MoS₂

  It is shown that rhombohedral stacked MoS₂ can enable scalable photovoltaic effects induced by spontaneous polarization throughout few-micrometre-sized exfoliated flakes. This is exploited in a graphene–MoS₂-based photovoltaic device.

  • Dongyang Yang
  • , Jingda Wu
  •  & Ziliang Ye

• Article
  09 September 2021 | Open Access

  All-optical polarization and amplitude modulation of second-harmonic generation in atomically thin semiconductors

  All-optical modulation of second-harmonic generation in a monolayer molybdenum disulfide with a modulation depth of close to 100%, and speed limited only by the fundamental pulse duration, is achieved thanks to the crystal symmetry and the deep subwavelength thickness of the sample.

  • Sebastian Klimmer
  • , Omid Ghaebi
  •  & Giancarlo Soavi

• News & Views | 16 June 2021

  Chameleon graphene surfaces

  The unique optical properties of graphene were combined with lithium-ion battery technology to produce multispectral optical devices, with colour-changing capabilities.

  • Andrea C. Ferrari

• Letter | 29 April 2021

  Giant enhancement of optical nonlinearity in two-dimensional materials by multiphoton-excitation resonance energy transfer from quantum dots

  A simple coating of a sub-200-nm-thick quantum dot film on two-dimensional materials can drastically enhance their nonlinear optical responses through nonlinear-excitation resonance energy transfer by a high-efficiency remote dipole–dipole coupling.

  • Hao Hong
  • , Chunchun Wu
  •  & Jie Xiong

• Letter | 05 April 2021

  Multispectral graphene-based electro-optical surfaces with reversible tunability from visible to microwave wavelengths

  By converting Li-ion battery into an optical device using graphene electrodes, an electrochemical optical device which enables colour changing ability over the entire wavelength range from visible to microwave is demonstrated.

  • M. Said Ergoktas
  • , Gokhan Bakan
  •  & Coskun Kocabas

• News & Views | 27 February 2020

  Graphene light-field camera

  A new light-field imaging scheme, employing stacks of transparent graphene photodetectors, has been demonstrated, providing a path to greatly simplify the otherwise complex three-dimensional imaging.

  • Khurram Shehzad
  •  & Yang Xu

• Letter | 27 January 2020

  Attosecond-fast internal photoemission

  Femtosecond laser pulses are sent to a graphene/SiC interface to investigate photoinduced charge transfer from graphene to SiC. A charge transfer time of 300 attoseconds is obtained via laser-pulse-duration-dependent saturation fluence determination.

  • Christian Heide
  • , Martin Hauck
  •  & Peter Hommelhoff

• Letter | 20 January 2020

  Ranging and light field imaging with transparent photodetectors

  A highly transparent photodetector using graphene as the light-sensing layer, conducting channel layer, gate layer and interconnects enables new approaches for light field photodetection and imaging involving simultaneous detection across multiple focal planes.

  • Miao-Bin Lien
  • , Che-Hung Liu
  •  & Theodore B. Norris

• Article | 25 November 2019

  Ultrafast and energy-efficient all-optical switching with graphene-loaded deep-subwavelength plasmonic waveguides

  All-optical switching with a switching energy of 35 fJ and a switching time of 260 fs is reported in a nanoscale integrated optical circuit.

  • Masaaki Ono
  • , Masanori Hata
  •  & Masaya Notomi

• News & Views | 22 November 2019

  Graphene boost

  Using graphene as the ‘metal’ layer improves the localization accuracy of metal-induced energy transfer by nearly tenfold.

  • Margarida M. Barroso

• News & Views | 25 October 2019

  Hybridizing graphene and photonic crystal fibre

  While the ability to increase the light–matter interaction by depositing graphene inside the air holes of a long length of photonic crystal fibre is worth celebrating, cautious optimism is called for when we begin to discuss the industrialization of graphene-based fibre-optic components.

  • James Stone

• Letter | 02 September 2019

  Graphene-based metal-induced energy transfer for sub-nanometre optical localization

  Using graphene as the ‘metal’ layer can increase the localization accuracy of metal-induced energy transfer, enabling axial localization of single emitters and measurement of the thickness of lipid bilayers with ångström accuracy.

  • Arindam Ghosh
  • , Akshita Sharma
  •  & Jörg Enderlein

• Article | 18 March 2019

  A 90-nm-thick graphene metamaterial for strong and extremely broadband absorption of unpolarized light

  Eighty-five per cent absorptivity of unpolarized light over the wavelength range 300–2,500 nm is realized in a 90-nm-thick, 12.5 cm² metamaterial.

  • Han Lin
  • , Björn C. P. Sturmberg
  •  & Baohua Jia

• News & Views | 28 June 2018

  Electrically tuned nonlinearity

  The demonstration of broadband, electrically tunable third-order nonlinear optical responses in graphene is promising for a host of nonlinear optical applications.

  • Zhipei Sun

• Article | 04 June 2018

  Control of semiconductor emitter frequency by increasing polariton momenta

  While modifications of emission and absorption rates are commonplace in photonics, similar manipulations of emitter transition frequencies are challenging. Here, 2D polaritons in graphene are predicted to enable non-vertical electronic transitions in a quantum well, controlling the transition frequencies by inducing an effective non-locality.

  • Yaniv Kurman
  • , Nicholas Rivera
  •  & Ido Kaminer

• Letter | 11 December 2017

  Broadband gate-tunable terahertz plasmons in graphene heterostructures

  An all-optical difference frequency process is exploited to generate terahertz graphene plasmons that are tunable over an octave.

  • Baicheng Yao
  • , Yuan Liu
  •  & Chee Wei Wong

• Article | 30 October 2017

  Chalcogenide glass-on-graphene photonics

  Exploiting the peculiar properties of graphene, a series of high-performance glass-on-graphene devices, such as polarizers, thermo-optic switches and mid-infrared waveguide-integrated photodetectors and modulators are realized.

  • Hongtao Lin
  • , Yi Song
  •  & Juejun Hu

• Letter | 26 June 2017

  Electrical 2π phase control of infrared light in a 350-nm footprint using graphene plasmons

  Phase velocity of graphene plasmons is electrically controlled in a set-up enabling tuning of the phase between 0 and 2π.

  • Achim Woessner
  • , Yuanda Gao
  •  & Frank H. L. Koppens

• Article | 29 May 2017

  Broadband image sensor array based on graphene–CMOS integration

  Graphene–quantum dots on CMOS sensor offers broadband imaging.

  • Stijn Goossens
  • , Gabriele Navickaite
  •  & Frank Koppens

• Interview | 31 March 2016

  Flat talk

  Fengnian Xia from Yale University shares his opinions with Nature Photonics on the status of research into 2D materials and their prospects for commercial applications.

  • Rachel Won

• Review Article | 31 March 2016

  Optical modulators with 2D layered materials

  The recent realization that 2D layered materials could modulate light with superior performance has prompted intense research and significant advances, paving the way for realistic applications.

  • Zhipei Sun
  • , Amos Martinez
  •  & Feng Wang

• Review Article | 31 March 2016

  Photonics and optoelectronics of 2D semiconductor transition metal dichalcogenides

  The electronic and optical properties and the recent progress in applications of 2D semiconductor transition metal dichalcogenides with emphasis on strong excitonic effects, and spin- and valley-dependent properties are reviewed.

  • Kin Fai Mak
  •  & Jie Shan

• Letter | 28 March 2016

  Ultrafast optical switching of infrared plasmon polaritons in high-mobility graphene

  Non-equilibrium photoinduced plasmons in a high-mobility graphene monolayer are investigated at infrared wavelengths.

  • G. X. Ni
  • , L. Wang
  •  & D. N. Basov

• Letter | 21 March 2016

  Real-space mapping of tailored sheet and edge plasmons in graphene nanoresonators

  Researchers demonstrate graphene plasmon edge modes at infrared wavelengths. Such modes may offer additional electromagnetic field confinement compared with conventional sheet modes.

  • A. Y. Nikitin
  • , P. Alonso-González
  •  & R. Hillenbrand

• Article | 23 November 2015

  Towards graphene plasmon-based free-electron infrared to X-ray sources

  Scientists theoretically show infrared to X-ray sources that can be implemented on-chip by scattering high-energy electrons with graphene plasmons and predict that they are capable of producing tunable radiation.

  • Liang Jie Wong
  • , Ido Kaminer
  •  & Marin Soljačić

• Letter | 13 July 2015

  Graphene electro-optic modulator with 30 GHz bandwidth

  Scientists have realized a graphene electro-optic modulator operating with a 30 GHz bandwidth and with a state-of-the-art modulation efficiency of 1.5 dB V⁻¹, paving the way for fast digital communications.

  • Christopher T. Phare
  • , Yoon-Ho Daniel Lee
  •  & Michal Lipson

• Research Highlights | 31 October 2014

  Nanophotonic switching cell

  • Maria Maragkou

• Research Highlights | 31 July 2014

  Chemical potential effect

  • Noriaki Horiuchi

• Research Highlights | 27 June 2014

  Molecular engine

  • Oliver Graydon

• Article | 18 May 2014

  Fundamental limits and near-optimal design of graphene modulators and non-reciprocal devices

  Recent demonstrations of modulators, polarization rotators and isolators have indicated the potential of graphene for photonic applications. The present study investigates the fundamental limits and near-optimal design of graphene modulators and non-reciprocal devices.

  • Michele Tamagnone
  • , Arya Fallahi
  •  & Julien Perruisseau-Carrier

• Research Highlights | 28 February 2014

  Single-photon nonlinearity

  • David Pile

• Research Highlights | 24 December 2013

  Perfect absorber

  • Oliver Graydon

• Letter | 15 September 2013

  Chip-integrated ultrafast graphene photodetector with high responsivity

  A chip-integrated graphene photodetector with a high responsivity of over 0.1 A W⁻¹, high speed and broad spectral bandwidth is realized through enhanced absorption due to near-field coupling. Under zero-bias operation, response rates above 20 GHz and an instrumentation-limited 12 Gbit s⁻¹ optical data link are demonstrated.

  • Xuetao Gan
  • , Ren-Jye Shiue
  •  & Dirk Englund

• Letter | 15 September 2013

  CMOS-compatible graphene photodetector covering all optical communication bands

  A CMOS-compatible photodetector based on graphene with multi-gigahertz operation ranging from the O- to U-band of telecommunication bands is demonstrated, highlighting the promise of graphene as a new material for integrated photonics.

  • Andreas Pospischil
  • , Markus Humer
  •  & Thomas Mueller

• Letter | 15 September 2013

  High-responsivity graphene/silicon-heterostructure waveguide photodetectors

  A CMOS-compatible graphene/silicon-heterostructure photodetector formed by integrating graphene onto a silicon optical waveguide on silicon-on-insulator and operating in the near- and mid-infrared regions is demonstrated. A responsivity as high as 0.13 A W⁻¹ is obtained at a bias of 1.5 V for 2.75-μm light at room temperature.

  • Xiaomu Wang
  • , Zhenzhou Cheng
  •  & Jian-Bin Xu

• Research Highlights | 29 August 2013

  Graphene metamaterials

  • Simon Pleasants

• News & Views | 27 June 2013

  Graphene shrinks light

  • David Pile

• Research Highlights | 27 June 2013

  High photoresponsitivity

  • Rachel Won

• Review Article | 31 August 2010

  Graphene photonics and optoelectronics

  • F. Bonaccorso
  • , Z. Sun
  •  & A. C. Ferrari

• Correspondence | 01 July 2010

  The role of optics in computing

  • Rodney S. Tucker

• Letter | 02 May 2010

  Flat dielectric grating reflectors with focusing abilities

  Microscale planar optical elements based on high-reflectivity, non-periodic gratings provide a compact and convenient means for focusing and shaping light.

  • David Fattal
  • , Jingjing Li
  •  & Raymond G. Beausoleil