10 dB emission suppression in a structured low index medium

نویسندگان

چکیده

Significant suppression of radiation in 3D structured media with small refractive indices 1.4–1.6, such as glass or polymers, is a desirable feature yet to be obtained. We present here quasiperiodic structures homogeneous distribution Bragg peaks on sphere reciprocal space obtained by an overlap multiple gratings. Simulations revealed limitation emission contrasting from theoretical predictions. The effect number gratings and index contrast the investigated. demonstrate almost independent −10dB for low 1.30.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Low Power Low Voltage Rail to Rail Constant gm Differential Amplifier with 150 dB CMRR and Enhanced Frequency Performance

This paper proposes a low voltage (±0.55V supply voltage) low power (44.65µW) high common mode rejection ratio (CMRR) differential amplifier (d.a.) with rail to rail input common mode range (ICMR), constant transconductance (gm) and enhanced frequency performance. Its high performance is obtained using a simple negative averaging method so that it cancels out the common mode input signals at th...

متن کامل

A Determination of the Spectral Index of Galactic Synchrotron Emission in the 1-10 GHz range

We present an analysis of simultaneous multifrequency measurements of the Galactic emission in the 1-10 GHz range with 18◦ angular resolution taken from a high altitude site. Our data yield a determination of the synchrotron spectral index between 1.4 GHz and 7.5 GHz of αsyn = 2.81 ± 0.16. Combining our data with the maps from Haslam et al. (1982) and Reich & Reich (1986) we find αsyn = 2.76 ± ...

متن کامل

[Health-related physical fitness in Brazilian adolescents from areas having a medium/low Human Development Index].

OBJECTIVE Evaluating health-related, physical fitness (HRPF) in adolescents from a town having a medium/low Human Development Index (HDI). METHODS This was a descriptive study involving 627 adolescents (266 boys and 361 girls) from public schools aged 14 to 17. Anthropometric measurements were obtained and the students were given motor tests analysed according to the cut-off points suggested ...

متن کامل

hand grip strength in low, medium, and high body mass index males and females

conclusions the current study revealed that a significant difference existed in hgs among the low, medium, and high bmi groups. a positive correlation existed between hgs and weight and height, while sex was the most significant factor affecting hgs. these findings can serve as a reference to assess hgs prediction, whereby the sex effect should be considered. results the results showed that the...

متن کامل

Low Molecular Weight Heparin Overdose: A 10 Year Case Series

  Background: Low molecular weight heparin (LMWH) is used for the treatment and prevention of coagulative disorders. Few patients receiving therapeutic doses of LMWH develop major hemorrhage. Currently there are few reports in the literature on acute overdose on adults.  In this study, clinical profile, treatment and outcome of 21 patients who acutely overdosed enoxaparin are described. Method...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of The Optical Society of America B-optical Physics

سال: 2023

ISSN: ['0740-3224', '1520-8540']

DOI: https://doi.org/10.1364/josab.477576