Search Results - "Klemm, Richard A."

Output from a Josephson stimulated terahertz amplified radiation emitter by Klemm, Richard A, Kadowaki, Kazuo

“…The angular dependence of the radiation-zone output power and electric polarization of stimulated terahertz amplified radiation (STAR) emitted from a dc…”
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Pristine and intercalated transition metal dichalcogenide superconductors by Klemm, Richard A.

“…•This review article focusses upon three materials, 2H-NbSe2, TaS2(pyridine)1/2 and (LaSe)1.14(NbSe2).•Two of these exhibit superconducting dimensional…”
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Towards a Microscopic Theory of the Knight Shift in an Anisotropic, Multiband Type-II Superconductor by Klemm, Richard

“…A method is proposed to extend the zero-temperature Hall-Klemm microscopic theory of the Knight shift K in an anisotropic and correlated, multi-band metal to…”
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An advance in the arithmetic of the Lie groups as an alternative to the forms of the Campbell-Baker-Hausdorff-Dynkin theorem by Kim, Sunghyun, Liu, Zhichen, Klemm, Richard A

“…Abstract The exponential of an operator or matrix is widely used in quantum theory, but it sometimes can be a challenge to evaluate. For non-commutative…”
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Integrated, Portable, Tunable, and Coherent Terahertz Sources and Sensitive Detectors Based on Layered Superconductors by Delfanazari, Kaveh, Klemm, Richard A., Joyce, Hannah J., Ritchie, David A., Kadowaki, Kazuo

“…Current compact emitter and receiver technologies are generally inefficient and impractical at terahertz (THz) frequencies between 0.1 and 10 THz. Hence, a gap…”
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High-Tc superconducting THz emitters fabricated by wet etching by Shibano, Yuuki, Kashiwagi, Takanari, Komori, Yuki, Sakamoto, Kazuki, Tanabe, Yuki, Yamamoto, Takashi, Minami, Hidetoshi, Klemm, Richard A., Kadowaki, Kazuo

“…We studied the etching of small crystals of the high-Tc superconductor Bi2Sr2CaCu2O8+δ (Bi2212) with various dilute compositions of hydrochloric and nitric…”
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A high-Tc intrinsic Josephson junction emitter tunable from 0.5 to 2.4 terahertz by Kashiwagi, Takanari, Sakamoto, Kazuki, Kubo, Hiroyuki, Shibano, Yuuki, Enomoto, Takuma, Kitamura, Takeo, Asanuma, Kentaro, Yasui, Takaki, Watanabe, Chiharu, Nakade, Kurama, Saiwai, Yoshihiko, Katsuragawa, Takuya, Tsujimoto, Manabu, Yoshizaki, Ryozo, Yamamoto, Takashi, Minami, Hidetoshi, Klemm, Richard A., Kadowaki, Kazuo

“…Strong, monochromatic, coherent and continuous terahertz (THz) radiation was generated from the intrinsic Josephson junctions in a cylindrical stand-alone mesa…”
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Terahertz Emission From Thermally Managed Square Intrinsic Josephson Junction Microstrip Antennas by Klemm, Richard A., Davis, Andrew E., Wang, Qing X.

“…We show for thin square microstrip antennas that the transverse magnetic electromagnetic cavity modes are greatly restricted in number due to the point group…”
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Evidence for a Dual-Source Mechanism of Terahertz Radiation from Rectangular Mesas of Single Crystalline Bi2Sr2CaCu2O8+\delta Intrinsic Josephson Junctions by Kadowaki, Kazuo, Tsujimoto, Manabu, Yamaki, Kazuhiro, Yamamoto, Takashi, Kashiwagi, Takanari, Minami, Hidetoshi, Tachiki, Masashi, Klemm, Richard A

“…The THz radiation emitted from rectangular mesas of single-crystal Bi 2 Sr 2 CaCu 2 O 8+\delta was studied using angular distribution measurements and Fourier…”
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Continuous 30 μW terahertz source by a high- Tc superconductor mesa structure by Sekimoto, S., Watanabe, C., Minami, H., Yamamoto, T., Kashiwagi, T., Klemm, Richard A., Kadowaki, K.

“…Using a modified mesa structure of high-Tc superconducting Bi2Sr2CaCu2O8+δ with a thin underlaying base superconductor (∼3 μm), the effective working…”
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Applications using high-Tc superconducting terahertz emitters by Nakade, Kurama, Kashiwagi, Takanari, Saiwai, Yoshihiko, Minami, Hidetoshi, Yamamoto, Takashi, Klemm, Richard A., Kadowaki, Kazuo

“…Using recently-developed THz emitters constructed from single crystals of the high- T c superconductor Bi 2 Sr 2 CaCu 2 O 8+ δ , we performed three prototype…”
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Liquid helium-free high-Tc superconducting terahertz emission system and its applications by Saiwai, Yoshihiko, Kashiwagi, Takanari, Nakade, Kurama, Tsujimoto, Manabu, Minami, Hidetoshi, Klemm, Richard A., Kadowaki, Kazuo

“…We constructed a compact THz emission-detection system based upon the emitters developed by us from the intrinsic Josephson junctions in single crystals of…”
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Influence of the local heating position on the terahertz emission power from high- T c superconducting Bi2Sr2CaCu2O8+ δ mesas by Watanabe, C., Minami, H., Kitamura, T., Asanuma, K., Nakade, K., Yasui, T., Saiwai, Y., Shibano, Y., Yamamoto, T., Kashiwagi, T., Klemm, Richard A., Kadowaki, K.

“…Simultaneous measurements of spectroscopic terahertz emissions from and SiC photoluminescent local temperature T(r) distributions of high transition…”
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Anomalous angular dependence of the upper critical induction of orthorhombic ferromagnetic superconductors with completely broken p -wave symmetry by Lörscher, Christopher, Zhang, Jingchuan, Gu, Qiang, Klemm, Richard A.

“…We employ the Klemm-Clem transformations to map the equations of motion for the Green functions of a clean superconductor with a general ellipsoidal Fermi…”
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Quantum terahertz electronics (QTE) using coherent radiation from high temperature superconducting Bi2Sr2CaCu2O8+δ intrinsic Josephson junctions by Kadowaki, Kazuo, Tsujimoto, Manabu, Delfanazari, Kaveh, Kitamura, Takeo, Sawamura, Masashi, Asai, Hidehiro, Yamamoto, Takashi, Ishida, Kazuya, Watanabe, Chiharu, Sekimoto, Shunsuke, Nakade, Kurama, Yasui, Takaki, Asanuma, Kentaro, Kashiwagi, Takanari, Minami, Hidetoshi, Tachiki, Masashi, Hattori, Toshiaki, Klemm, Richard A.

“…•An attempt to Quantum Terahertz Electronics (QTE) has been made by improving IJJ characteristics.•High power THz emission was observed in a stand-alone type…”
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The phase-sensitive c-axis twist experiments on Bi2Sr2CaCu2O8+δ and their implications by Klemm, Richard A.

“…In order to determine the orbital symmetry of the superconducting order parameter (OP) in the high temperature superconducting compounds (HTSC), an experiment…”
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Study of coherent and continuous terahertz wave emission in equilateral triangular mesas of superconducting Bi2Sr2CaCu2O8+δ intrinsic Josephson junctions by Delfanazari, Kaveh, Asai, Hidehiro, Tsujimoto, Manabu, Kashiwagi, Takanari, Kitamura, Takeo, Yamamoto, Takashi, Sawamura, Masashi, Ishida, Kazuya, Tachiki, Masashi, Klemm, Richard A., Hattori, Toshiaki, Kadowaki, Kazuo

“…► We observed intense and coherent THz waves in the equilateral triangular mesas. ► We numerically investigated EM modes of the mesas which emitted intense THz…”
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Geometrical Full-Wavelength Resonance Mode Generating Terahertz Waves from a Single-Crystalline Bi2Sr2CaCu2O8+\delta Rectangular Mesa by Kashiwagi, Takanari, Yamaki, Kazuhiro, Tsujimoto, Manabu, Deguchi, Kouta, Orita, Naoki, Koike, Takashi, Nakayama, Ryo, Minami, Hidetoshi, Yamamoto, Takashi, Klemm, Richard A, Tachiki, Masashi, Kadowaki, Kazuo

“…The terahertz radiation from a rectangular mesa of single-crystalline Bi 2 Sr 2 CaCu 2 O 8+\delta with dimensions of $80 \times 320 \times 1.6$ μm 3 fabricated…”
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Angular Dependence of the Radiation Power of a Josephson STAR-emitter by Klemm, Richard A., Kadowaki, Kazuo

“…We calculate the angular dependence of the power of stimulated terahertz amplified radiation (STAR) emitted from a dc voltage applied across a stack of…”
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Terahertz Oscillating Devices Based Upon the Intrinsic Josephson Junctions in a High Temperature Superconductor by Delfanazari, Kaveh, Asai, Hidehiro, Tsujimoto, Manabu, Kashiwagi, Takanari, Kitamura, Takeo, Ishida, Kazuya, Watanabe, Chiharu, Sekimoto, Shunsuke, Yamamoto, Takashi, Minami, Hidetoshi, Tachiki, Masashi, Klemm, Richard A., Hattori, Toshiaki, Kadowaki, Kazuo

“…Recent developments of coherent terahertz (THz) oscillators based on the intrinsic Josephson junctions (IJJs) in mesas of the high temperature superconductor…”
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