首页 > 期刊 > 栏目列表 > 栏目 (Terahertz Plasmonics and Metamaterials)

摘要

We present a thermal active control over terahertz (THz) extraordinary transmission induced by a plasmon in a periodic subwavelength holes array and a patch array. Both arrays consist of high transition temperature YBCO superconductors using THz time domain spectroscopy (THz-TDS). In the periodic subwavelength YBCO holes array, we observe a transition between a virtual excitati

PDF全文 Chinese Optics Letters | 2011,9(s1):s10403
分享:
0 507 2060

摘要

We present a systematic study of freestanding terahertz (THz) metamaterials fabricated on Mylar film by self-aligned photolithography. THz time-domain spectroscopy (THz-TDS) transmission measurements and numerical simulations reveal the negative index of refraction in the frequency range of 0.66–0.90 THz under normal wave incidence. The observed resonance behaviors can be expl

PDF全文 Chinese Optics Letters | 2011,9(s1):s10404
分享:
0 399 1843

摘要

A metamaterial (MM) absorber is very attractive in the terahertz (THz) regime for its potential applications as a bolometer and thermal emitter. In this letter, we propose a transmission line model for the MM absorber in order to identify the basic absorption mechanism involved. Some strategies are put forward to widen the absorption bands to over 250 GHz. A new kind of MM abso

PDF全文 Chinese Optics Letters | 2011,9(s1):s10402
分享:
0 475 2327

摘要

We propose a three-dimensional chiral metamaterial consisting of arrays of multi-layered mutually twisted sandwich metallic spirals. Such structure exhibits a negative refractive index at terahertz frequencies for its chirality. The chirality with varied refractive index can be achieved and tuned by changing the configurations. The presented structure offers flexibility for inv

PDF全文 Chinese Optics Letters | 2011,9(s1):s10401
分享:
0 381 2472
首页上一页1下一页尾页