Search Results - "Yun‐Goo Lee"

Giant electrostrictive coefficient in rapidly cooled nanodisordered KTa1−xNbxO3 lead-free single crystals by Shang, Annan, Chen, Chang-Jiang, Liu, Ruijia, Lee, Yun Goo, Chao, Ju-Hung, Yin, Shizhuo

“…The temperature dependent electrostrictive effect, with respect to increasing the cooling rate to a cooling temperature, was quantitatively investigated in…”
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Domain Engineering Enabled Giant Linear Electro‐Optic Effect and High Transparency in Ferroelectric KTa1−x Nb x O3 Single Crystals by Shang, Annan, Liu, Ruijia, Chen, Chang-Jiang, Lee, Yun‐Goo, Chao, Ju-Hung, Zhang, Wei, Wetherington, Maxwell, Yin, Shizhuo

“…A giant linear electro‐optic (EO) effect and high transparency in ferroelectric potassium tantalate niobate [( K T a 1 − x N b x O 3 ), KTN] crystal is…”
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Domain Engineering Enabled Giant Linear Electro‐Optic Effect and High Transparency in Ferroelectric KTa1−xNbxO3 Single Crystals by Shang, Annan, Liu, Ruijia, Chang-Jiang, Chen, Yun‐Goo Lee, Ju-Hung, Chao, Zhang, Wei, Wetherington, Maxwell, Yin, Shizhuo

“…A giant linear electro‐optic (EO) effect and high transparency in ferroelectric potassium tantalate niobate [(KTa1−xNbxO3), KTN] crystal is achieved via a…”
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Ultrahigh light extraction efficiency light emitting diodes by harnessing asymmetric obtuse angle microstructured surfaces by Chen, Chang-Jiang, Yao, Jimmy, Zhu, Wenbin, Chao, Ju-Hung, Shang, Annan, Lee, Yun-Goo, Yin, Shizhuo

“…We report an ultrahigh light extraction efficiency (LEE) light emitting diodes (LEDs) by incorporating innovative asymmetric obtuse angle microstructured…”
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Harman Measurements for Thermoelectric Materials and Modules under Non-Adiabatic Conditions by Roh, Im-Jun, Lee, Yun Goo, Kang, Min-Su, Lee, Jae-Uk, Baek, Seung-Hyub, Kim, Seong Keun, Ju, Byeong-Kwon, Hyun, Dow-Bin, Kim, Jin-Sang, Kwon, Beomjin

“…Accuracy of the Harman measurement largely depends on the heat transfer between the sample and its surroundings, so-called parasitic thermal effects (PTEs)…”
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Correction of the Electrical and Thermal Extrinsic Effects in Thermoelectric Measurements by the Harman Method by Kang, Min-Su, Roh, Im-Jun, Lee, Yun Goo, Baek, Seung-Hyub, Kim, Seong Keun, Ju, Byeong-Kwon, Hyun, Dow-Bin, Kim, Jin-Sang, Kwon, Beomjin

“…Although the Harman method evaluates the thermoelectric figure-of-merit in a rapid and simple fashion, the accuracy of this method is affected by several…”
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Design and Experimental Investigation of Thermoelectric Generators for Wearable Applications by Lee, Yun Goo, Kim, Junsoo, Kang, Min‐Su, Baek, Seung‐Hyub, Kim, Seong Keun, Lee, Seung‐Min, Lee, Jaewoo, Hyun, Dow‐Bin, Ju, Byeong‐Kwon, Moon, Seung Eon, Kim, Jin‐Sang, Kwon, Beomjin

“…A critical challenge in using thermoelectric generators (TEGs) for charging the portable or wearable electronics has been their limited outputs, as available…”
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Study of thermal and spatial dependent electric field-induced phase transition in relaxor ferroelectric crystals using Raman spectroscopy by Chen, Chang-Jiang, Zhu, Wenbin, Chao, Ju-Hung, Shang, Annan, Lee, Yun Goo, Liu, Ruijia, Yin, Stuart (Shizhuo), Dubinskii, Mark, Hoffman, Robert C.

“…Electric field-induced phase transition in perovskite relaxor ferroelectric crystals has been studied using Raman spectroscopy. The findings revealed that by…”
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Domain Engineering Enabled Giant Linear Electro‐Optic Effect and High Transparency in Ferroelectric KTa 1− x Nb x O 3 Single Crystals by Shang, Annan, Liu, Ruijia, Chen, Chang-Jiang, Lee, Yun‐Goo, Chao, Ju-Hung, Zhang, Wei, Wetherington, Maxwell, Yin, Shizhuo

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Domain Engineering Enabled Giant Linear Electro‐Optic Effect and High Transparency in Ferroelectric KTa1−x Nb x O3 Single Crystals by Shang, Annan, Liu, Ruijia, Chen, Chang-Jiang, Lee, Yun‐Goo, Chao, Ju-Hung, Zhang, Wei, Wetherington, Maxwell, Yin, Shizhuo

“…In article 2200005, a giant linear electro‐optic effect as large as γ51 ∼ 51,200 pm V‐1 and high transparency in ferroelectric potassium tantalate niobate…”
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Domain Engineering Enabled Giant Linear Electro‐Optic Effect and High Transparency in Ferroelectric KTa 1− x Nb x O 3 Single Crystals by Shang, Annan, Liu, Ruijia, Chen, Chang-Jiang, Lee, Yun‐Goo, Chao, Ju-Hung, Zhang, Wei, Wetherington, Maxwell, Yin, Shizhuo

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Analysis on the electric field distribution in a relaxor ferroelectric KTN crystal near field-induced phase transition using optical deflection measurements by Chen, Chang-Jiang, Chao, Ju-Hung, Lee, Yun Goo, Shang, Annan, Liu, Ruijia, Yin, Stuart (Shizhuo), Hoffman, Robert C.

“…Spatially analyzing non-uniform distributions of electric phenomena such as electric field and permittivity in ferroelectric devices is very challenging. In…”
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Higher speed, wider angle linear electro-optic deflection via domain engineered KTN crystals by Shang, Annan, Liu, Ruijia, Lee, Yun Goo, Kabir, Mohammad Ahsanul, Ji, Yaoyang, Wu, Kaicheng, Yin, Shizhuo

“…Pulsed-biased higher speed (> 10 MHz @ 30 V, 100 ns pulse width) and DC-biased wider angle (105 mrads @ 410 V/mm) linear electro-optic (EO) deflection is…”
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Photon excitation enabled large aperture space-charge-controlled potassium tantalate niobate (KTN) beam deflector by Zhu, Wenbin, Chao, Ju-Hung, Chen, Chang-Jiang, Shang, Annan, Lee, Yun Goo, Yin, Shizhuo, Dubinskii, Mark, Hoffman, Robert C.

“…To overcome the depth limitation of the space-charge-controlled (SCC) potassium tantalate niobate (KTN) deflectors, we report in this paper a method of…”
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Polarization-independent reflective-type KTN beam deflector with a single KTN crystal by Lee, Yun Goo, Jr, Annan Shang, Zhang, Wei, Liu, Ruijia, Yin, Shizhuo, Frantz, Jesse

“…In this paper, we present a compact size polarization-independent reflection-type potassium tantalate niobate (KTN) beam deflector, including (1) a single KTN…”
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Electrode surface topology enhanced KTN deflector by Liu, Ruijia, Shang, Annan, Lee, Yun Goo, Kabir, Mohammad Ahsanul, Ji, Yaoyang, Yin, Shizhuo

“…In this letter we present the first study on the electrode surface topology enhanced KTN deflector, in which one of the electrodes contains sharp edges. In…”
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Enhanced c-axis KTN beam deflector by compensating compositional gradient effect with a thermal gradient by Lee, Yun Goo, Chen, Chang-Jiang, Shang, Annan, Liu, Ruijia, Chao, Ju-Hung, Yin, Shizhuo

“…In this paper, we propose an enhanced c-axis potassium tantalate niobate (KTN) based electro-optic (EO) deflector by compensating the performance degradation…”
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