TWO-DIMENSIONAL CIRCULARLY-POLARIZED-LIGHT PHOTOELECTRON DIFFRACTION FOR THE ANALYSIS OF MAGNETIC AND ELECTRONIC PROPERTIES ON SURFACES

2000 ◽  
Vol 07 (05n06) ◽  
pp. 643-647 ◽  
Author(s):  
K. ENOMOTO ◽  
Y. MIYATAKE ◽  
K. FUKUMOTO ◽  
A. KOBAYASHI ◽  
K. HATTORI ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Polarized Light ◽  
Emission Angle ◽  
Two Dimensional ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Photoelectron Diffraction ◽  
Angle Dependence ◽  
First Time ◽  
Good Agreement

Circular dichroism has been measured in the photoelectron diffraction of bulk W 4f photoelectrons from the W(110)(1×1) clean surface. The forward focusing peaks along the symmetric axis in the diffraction pattern showed an azimuthal rotation similar to those reported in a prior experiment on Si(001) and chemically shifted W 4f photoelectrons from the W(110)(1×1)-O surface. The emission angle dependence of the rotation angles has been measured and analyzed for the first time and the angles observed are in good agreement with those calculated using the formula Δ ϕ=m/kR sin 2θ derived previously by Daimon et al. [Jpn. J. Phys.32, L1480 (1993)] considering the angular dependence of m. This property gives a basis for the analysis of structure or various magnetic and electronic properties on surfaces.

Circularly polarized light‐induced dichroism in photoelectron diffraction observed with display‐type spherical mirror analyzer

1995 ◽  
Vol 66 (2) ◽  
pp. 1510-1512 ◽  
Author(s):  
Hiroshi Daimon ◽  
Takeshi Nakatani ◽  
Shin Imada ◽  
Shigemasa Suga ◽  
Yasushi Kagoshima ◽  
...  
Keyword(s):  
Polarized Light ◽  
Display Type ◽  
Spherical Mirror ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Photoelectron Diffraction

scholarly journals Light helicity detector based on 2D magnetic semiconductor CrI3

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xing Cheng ◽  
Zhixuan Cheng ◽  
Cong Wang ◽  
Minglai Li ◽  
Pingfan Gu ◽  
...  
Keyword(s):  
Magnetic State ◽  
Magnetic Semiconductors ◽  
Magnetic Circular Dichroism ◽  
Optoelectronic Devices ◽  
Polarized Light ◽  
Magnetic Semiconductor ◽  
Two Dimensional ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Physical Phenomena

AbstractTwo-dimensional magnetic semiconductors provide a platform for studying physical phenomena at atomically thin limit, and promise magneto-optoelectronic devices application. Here, we report light helicity detectors based on graphene-CrI3-graphene vdW heterostructures. We investigate the circularly polarized light excited current and reflective magnetic circular dichroism (RMCD) under various magnetic fields in both monolayer and multilayer CrI3 devices. The devices exhibit clear helicity-selective photoresponse behavior determined by the magnetic state of CrI3. We also find abnormal negative photocurrents at higher bias in both monolayer and multilayer CrI3. A possible explanation is proposed for this phenomenon. Our work reveals the interplay between magnetic and optoelectronic properties in CrI3 and paves the way to developing spin-optoelectronic devices.

Isopinocampheyl-based C-BODIPYs: A model strategy to construct cost-effective boron-chelate emitters of circularly polarized light

2021 ◽  
Author(s):  
Josue Jiménez ◽  
Florencio Moreno Jiménez ◽  
Teresa Arbeloa López ◽  
Trevor A. Cabreros ◽  
Gilles Muller ◽  
...  
Keyword(s):  
Polarized Light ◽  
Cost Effective ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence ◽  
First Time ◽  
Boron Chelate

Efficient circularly polarized luminescence (CPL) brightness from 4,4-diisopinocampheylBODIPY is detected for the first time. This finding demonstrates the workability of a new design, based on using chiral-pool derived chloro(diisopinocampheyl)borane, to...

scholarly journals Chiroptical Metasurfaces: Principles, Classification, and Applications

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4381
Author(s):  
Joohoon Kim ◽  
Ahsan Sarwar Rana ◽  
Yeseul Kim ◽  
Inki Kim ◽  
Trevon Badloe ◽  
...  
Keyword(s):  
Mirror Symmetry ◽  
Polarized Light ◽  
Two Dimensional ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
The Past ◽  
Sensing Platforms ◽  
Chiral Sensing ◽  
Chiral Materials ◽  
Significant Attention

Chiral materials, which show different optical behaviors when illuminated by left or right circularly polarized light due to broken mirror symmetry, have greatly impacted the field of optical sensing over the past decade. To improve the sensitivity of chiral sensing platforms, enhancing the chiroptical response is necessary. Metasurfaces, which are two-dimensional metamaterials consisting of periodic subwavelength artificial structures, have recently attracted significant attention because of their ability to enhance the chiroptical response by manipulating amplitude, phase, and polarization of electromagnetic fields. Here, we reviewed the fundamentals of chiroptical metasurfaces as well as categorized types of chiroptical metasurfaces by their intrinsic or extrinsic chirality. Finally, we introduced applications of chiral metasurfaces such as multiplexing metaholograms, metalenses, and sensors.

Rotation of two-dimensional arrays of microparticles trappedby circularly polarized light

2004 ◽  
Vol 84 (26) ◽  
pp. 5440-5442 ◽  
Author(s):  
Kenji Miyakawa ◽  
Hiroto Adachi ◽  
Yoshinori Inoue
Keyword(s):  
Polarized Light ◽  
Two Dimensional ◽  
Circularly Polarized Light ◽  
Circularly Polarized
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