It's been observed that after irradiation, the response spectra of detectors become narrower at shot wavelength while the peak and cut-offwavelength have no noticeable change.
实验结果发现：电子辐照后器件响应光谱在短波处有变窄的趋势，但响应峰值波长和截止波长基本无变化；
2
The measurements of the cut-offwavelength and the near field intensity distribution show that the PCF does have comparatively wide single-mode operating range.
截止波长测试和近场光强分布检验表明，该光子晶体光纤确实具备较宽的单模工作范围。
3
ESI parameters are obtained by measuring spot size at certain wavelength and cut-offwavelength; and by measuring spot sized at two different wavelengths.