Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Ménard Jean-Michel"'
Autor:
Maleki, Ali, Heindl, Moritz B., Xin, Yongbao, Boyd, Robert W., Herink, Georg, Ménard, Jean-Michel
Graphene has unique properties paving the way for groundbreaking future applications. Its large optical nonlinearity and ease of integration in devices notably makes it an ideal candidate to become a key component for all-optical switching and freque
Externí odkaz:
http://arxiv.org/abs/2405.17125
Autor:
Zhang, Chang, Yalavarthi, Eeswar K., Giroux, Mathieu, Cui, Wei, Stephan, Michel, Maleki, Ali, Weck, Arnaud, Ménard, Jean-Michel, St-Gelais, Raphael
We achieve high detectivity terahertz sensing using a silicon nitride nanomechanical resonator functionalized with a metasurface absorber. High performances are achieved by striking a fine balance between the frequency stability of the resonator, and
Externí odkaz:
http://arxiv.org/abs/2401.16503
Autor:
Fandio, Défi Junior Jubgang, Vishnuradhan, Aswin, Yalavarthi, Eeswar Kumar, Cui, Wei, Couture, Nicolas, Gamouras, Angela, Ménard, Jean-Michel
We combine parametric frequency upconversion with single-photon counting technology to achieve detection sensitivity down to the terahertz (THz) single-photon level. Our relatively simple detection scheme employs a near-infrared ultrafast source, a G
Externí odkaz:
http://arxiv.org/abs/2310.08452
Autor:
Couture, Nicolas, Lippl, Markus, Cui, Wei, Gamouras, Angela, Joly, Nicolas Y., Ménard, Jean-Michel
Slow data acquisition in terahertz time-domain spectroscopy (THz-TDS) has hindered the technique's ability to resolve "fast" dynamics occurring on the microsecond timescale. This timescale, arguably too slow to be accessed via standard optical pump-p
Externí odkaz:
http://arxiv.org/abs/2309.09803
Autor:
Huttunen Mikko J., Bin-Alam Saad, Reshef Orad, Mamchur Yaryna, Stolt Timo, Ménard Jean-Michel, Dolgaleva Ksenia, Boyd Robert W., Kauranen Martti
Publikováno v:
EPJ Web of Conferences, Vol 238, p 11002 (2020)
Nonlinear optical phenomena are paramount in many photonic applications ranging from frequency broadening and generation of ultrashort pulses to frequency comb-based metrology. A recent trend has been to miniaturize photonic components, resulting als
Externí odkaz:
https://doaj.org/article/d6ba38cbc05744e0949e628d9527cfcf
Autor:
Jaber, Ahmed, Reitz, Michael, Singh, Avinash, Maleki, Ali, Xin, Yongbao, Sullivan, Brian, Dolgaleva, Ksenia, Boyd, Robert W., Genes, Claudiu, Ménard, Jean-Michel
Publikováno v:
Nature Communications 15, 4427 (2024)
Physical and chemical properties of materials can be modified by a resonant optical mode. Such recent demonstrations have mostly relied on a planar cavity geometry, others have relied on a plasmonic resonator. However, the combination of these two de
Externí odkaz:
http://arxiv.org/abs/2304.03654
Autor:
Cui, Wei, Yalavarthi, Eeswar Kumar, Radhan, Aswin Vishnu, Bashirpour, Mohammad, Gamouras, Angela, Ménard, Jean-Michel
Publikováno v:
Optics Express 31, 32468 (2023)
We demonstrate a table-top high-field terahertz (THz) source based on optical rectification of a collimated near-infrared pulse in gallium phosphide (GaP) to produce peak fields exceeding 300 kV/cm with a spectrum centered at 2.6 THz. The experimenta
Externí odkaz:
http://arxiv.org/abs/2301.09467
Autor:
Zibod, Soheil, Rasekh, Payman, Yildrim, Murat, Cui, Wei, Bhardwaj, Ravi, Ménard, Jean-Michel, Boyd, Robert W., Dolgaleva, Ksenia
We report on the first experimental observation of a very strong nonlinear response in crystalline quartz in the terahertz (THz) frequency region through THz time-domain spectroscopy (THz-TDS). Theoretical modelling is presented and predicts a Kerr c
Externí odkaz:
http://arxiv.org/abs/2210.01926
Autor:
Maleki, Ali, Singh, Avinash, Jaber, Ahmed, Cui, Wei, Xin, Yongbao, Sullivan, Brian T., Boyd, Robert W., Menard, Jean-Michel
We present octave-wide bandpass filters in the terahertz (THz) region based on bilayer-metamaterial (BLMM) structures. The passband region has a super-Gaussian shape with a maximum transmittance approaching 70% and a typical stopband rejection of 20
Externí odkaz:
http://arxiv.org/abs/2208.08434
Autor:
Couture, Nicolas, Cui, Wei, Lippl, Markus, Ostic, Rachel, Fandio, Défi Junior Jubgang, Yalavarthi, Eeswar Kumar, Radhan, Aswin Vishnu, Gamouras, Angela, Joly, Nicolas, Ménard, Jean-Michel
Slow motion movies are not only fascinating to watch, they also allow us to see intricate details of the mechanical dynamics of complex phenomena. If the images in each frame are replaced by terahertz (THz) waves, such movies can monitor low-energy r
Externí odkaz:
http://arxiv.org/abs/2207.11766