Optical and Structural Properties of Bilayer Circular Filter Prepared by Glancing Angle Deposition

Park, Yong Jun; Sobahan, Km Abdus; Kim, Jin Joo; Hwangbo, Chang Kwon

doi:10.3807/josk.2009.13.2.218

Cited by 10 publications

(8 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The CdO thin film deposition by oblique angle (θ° = 017), has larger clusters and becomes rougher. This result is in good agreement with those in literature [0][1][2][3][4][5][6][7][8][9]. This may be due to in columnar structure of films produce by oblique deposition technique accompanied by self shadowing effect and film thickness [08].…”

Section: B) Atomic Force Microscopesupporting

confidence: 82%

“…By this technique it has been possible to produce zigzags [4], pillars [0], chevrons [2], spirals [0] and other film microstructures from various materials including metals, insulators and semiconductors [6]. Potential applications include optical polarizers, high birefringence biaxial films, thin-film wave plates, optical humidity sensors, magnetic storage media, nanoemitters, and actuators.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Preparation and Characterization of CdO Thin Films Obtained by Oxidation of Obliquely Evaporated Cd Thin Films

Khalef¹

2017

JNUS

View full text Add to dashboard Cite

In this work, oblique angle deposition technique (OAD) was used to grow cadmium thin films onto glass substrates at different angles (1º and 01º), and then oxidized in air at (011 °C) for 0 hour by conventional furnace as the oxidation source. The effect of deposition angle on the structural, morphology, optical and electrical properties of cadmium oxide thin film were studied. XRD technique used to study the crystalline structure of these films confirm the polycrystalline nature of these films and the higher intensity accompanied that deposited with (01˚) with preferred orientation (000). Some structural parameters such as grain size was calculated. The surface morphology shows an improvement with higher incident angle. The optical properties shows that the transmition decreasing with increases deposition angle and the optical energy gap (Eg) values are (4.2 and 4.9) eV for normal and oblique deposition respectively. The dark current increases linearity with applied voltage and deceases with increasing deposition angle at the fixed applied voltage (ohmic behavior) with activation energy found to be (1.0022 -1.0040) ( eV) for normal and oblique deposition respectively .

show abstract

Section: B) Atomic Force Microscopesupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of CdO Thin Films Obtained by Oxidation of Obliquely Evaporated Cd Thin Films

Khalef¹

2017

JNUS

View full text Add to dashboard Cite

show abstract

“…Small deviation of λ 0 Bragg peaks from those of the single-layer films may be due to slightly deviated p and n avg of each layer in the hetero-chiral film during the sequential GLAD. Interestingly, the magnitude of the chiroptical response of the hetero-chiral film is much higher than that of single-layer films, which may be attributed to the combined response 17 23 from the TiO 2 and the SnO 2 individual layers constituting the hetero-chiral film as well as the interference effect occurring at the hetero-interfaces.…”

Section: Resultsmentioning

confidence: 98%

Highly photoresponsive and wavelength-selective circularly-polarized-light detector based on metal-oxides hetero-chiral thin film

Lee

Singh

Sung

et al. 2016

Sci Rep

View full text Add to dashboard Cite

A highly efficient circularly-polarized-light detector with excellent wavelength selectivity is demonstrated with an elegant and simple microelectronics-compatible way. The circularly-polarized-light detector based on a proper combination of the geometry-controlled TiO2-SnO2 hetero-chiral thin film as an effective chiroptical filter and the Si active layer shows excellent chiroptical response with external quantum efficiency as high as 30% and high helicity selectivity of ~15.8% in an intended wavelength range. Furthermore, we demonstrated the ability of manipulating both bandwidth and responsivity of the detector simultaneously in whole visible wavelength range by a precise control over the geometry and materials constituting hetero-chiral thin film. The high efficiency, wavelength selectivity and compatibility with conventional microelectronics processes enabled by the proposed device can result in remarkable developments in highly integrated photonic platforms utilizing chiroptical responses.

show abstract

“…Mirror scattering has two parts, one is the surface scattering which comes from the irregularity of each material interface and another is the volume scattering which comes from the thin film microstructure as described in reference [10][11]. Therefore the surface quality of the substrate is an important factor to reduce the surface scattering.…”

Section: Mirror Coatingmentioning

confidence: 99%

Design and Development of an Ultralow Optical Loss Mirror Coating for Zerodur Substrate

Cho¹,

Lee²,

Lee³

2012

Journal of the Optical Society of Korea

View full text Add to dashboard Cite

A high reflectance mirror, which has very low absorption and scattering loss, was coated onto a crystalline substrate by ion beam sputtering and then annealed at 450℃. We carefully selected the mirror coating material, and designed the high reflectance mirror, in order to avoid UV degradation which comes from the He-Ne plasma. We measured the surface roughness of the Zerodur substrate using phase shift interferometry and atomic force microscopy, and compared it with the TIS scattering of the mirror. The cavity ring-down method was used to measure the absorption of the mirror, and the thin film structure was correlated to its results. We also compared the optical properties of coated mirrors before and after annealing.

show abstract

Optical and Structural Properties of Bilayer Circular Filter Prepared by Glancing Angle Deposition

Cited by 10 publications

References 31 publications

Preparation and Characterization of CdO Thin Films Obtained by Oxidation of Obliquely Evaporated Cd Thin Films

Preparation and Characterization of CdO Thin Films Obtained by Oxidation of Obliquely Evaporated Cd Thin Films

Highly photoresponsive and wavelength-selective circularly-polarized-light detector based on metal-oxides hetero-chiral thin film

Design and Development of an Ultralow Optical Loss Mirror Coating for Zerodur Substrate

Contact Info

Product

Resources

About