Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Deotare, Parag B."'
Autor:
Sung, Suk Hyun, Goh, Yin Min, Yoo, Hyobin, Engelke, Rebecca, Xie, Hongchao, Zhang, Kuan, Li, Zidong, Ye, Andrew, Deotare, Parag B., Tadmor, Ellad B., Mannix, Andrew J., Park, Jiwoong, Zhao, Liuyan, Kim, Philip, Hovden, Robert
Publikováno v:
Nature Communications 13, 7826 (2022)
Twisted 2D materials form complex moir\'e structures that spontaneously reduce symmetry through picoscale deformation within a mesoscale lattice. We show twisted 2D materials contain a torsional displacement field comprised of three transverse period
Externí odkaz:
http://arxiv.org/abs/2203.06510
Autor:
Datta, Kanak, Lyu, Zhengyang, Li, Zidong, Taniguchi, Takashi, Watanabe, Kenji, Deotare, Parag B.
Two-dimensional transition metal dichalcogenides (TMDs) provide an attractive platform for studying strain dependent exciton transport at room temperature due to large exciton binding energy and strong bandgap sensitivity to mechanical stimuli. Here,
Externí odkaz:
http://arxiv.org/abs/2108.06418
Autor:
Li, Zidong, Lu, Xiaobo, Leon, Darwin F. Cordovilla, Hou, Jize, Lu, Yanzhao, Kaczmarek, Austin, Lyu, Zhengyang, Taniguchi, Takashi, Watanabe, Kenji, Zhao, Liuyan, Yang, Li, Deotare, Parag B.
The predicted formation of moire superlattices leading to confined excitonic states in heterostructures formed by stacking two lattice mismatched transition metal dichalcogenide (TMD) monolayers was recently experimentally confirmed. Such periodic po
Externí odkaz:
http://arxiv.org/abs/2002.01561
Publikováno v:
Phys. Rev. B 100, 241401 (2019)
We experimentally demonstrate hot exciton transport in h-BN encapsulated WSe2 monolayers via spatially and temporally resolved photoluminescence measurements at room temperature. We show that the nonlinear evolution of the mean squared displacement o
Externí odkaz:
http://arxiv.org/abs/1908.07648
Autor:
Deotare, Parag B., Bulu, Irfan, Frank, Ian W., Quan, Qimin, Zhang, Yinan, Ilic, Rob, Loncar, Marko
We demonstrate broad-band reconfiguration of coupled photonic crystal nanobeam cavities by using optical gradient force induced mechanical actuation. Propagating waveguide modes that exist over wide wavelength range are used to actuate the structures
Externí odkaz:
http://arxiv.org/abs/1201.3157
Autor:
Choy, Jennifer T., Bradley, Jonathan D. B., Deotare, Parag B., Burgess, Ian B., Evans, Christopher C., Mazur, Eric, Loncar, Marko
We demonstrate waveguide-coupled titanium dioxide (TiO2) racetrack resonators with loaded quality factors of 2x10^4 for the visible wavelengths. The structures were fabricated in sputtered TiO2 thin films on oxidized silicon substrates using standard
Externí odkaz:
http://arxiv.org/abs/1111.3545
We experimentally demonstrate high Quality factor dual-polarized TE-TM photonic crystal nanobeam cavities. The free-standing nanobeams are fabricated in a 500 nm thick silicon layer, and are probed using both tapered optical fiber and free-space reso
Externí odkaz:
http://arxiv.org/abs/1011.2739
Publikováno v:
Appl. Phys. Lett. 96, 203102 (2010)
A deterministic design of an ultrahigh Q, wavelength scale mode volume photonic crystal nanobeam cavity is proposed and experimentally demonstrated. Using this approach, cavities with Q>10^6 and on-resonance transmission T>90% are designed. The devic
Externí odkaz:
http://arxiv.org/abs/1002.1319
Wavelength-scale, high Q-factor photonic crystal cavities have emerged as a platform of choice for on-chip manipulation of optical signals, with applications ranging from low-power optical signal processing and cavity quantum electrodynamics, to bioc
Externí odkaz:
http://arxiv.org/abs/0909.2278
We describe the design, fabrication, and spectroscopy of coupled, high Quality (Q) factor silicon nanobeam photonic crystal cavities. We show that the single nanobeam cavity modes are coupled into even and odd superposition modes, and we simulate the
Externí odkaz:
http://arxiv.org/abs/0905.0109