.png){kind=icon}
返回
Quantum cascade lasers with integrated plasmonic antenna-array collimators
.png){kind=icon}
OA
AI
DOI：10.1364/OE.16.019447.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
We demonstrated in simulations and experiments that by defining a properly designed two-dimensional metallic aperture-grating structure on the facet of quantum cascade lasers, a small beam divergence angle can be achieved in directions both perpendicular and parallel to the laser waveguide layers (denoted as theta(perpendicular to) and theta(parallel to), respectively). Beam divergence angles as small as theta(perpendicular to)=2.7 degrees and theta(parallel to)=3.7 degrees have been demonstrated. This is a reduction by a factor of similar to 30 and similar to 10, respectively, compared to those of the original lasers emitting at a wavelength of 8.06 mu m. The devices preserve good room temperature performance with output power as high as similar to 55% of that of the original unpatterned lasers. We studied in detail the trade-off between beam divergence and power throughput for the fabricated devices. We demonstrated plasmonic collimation for buried heterostructure lasers and ridge lasers; devices with different waveguide structures but with the same plasmonic collimator design showed similar performance. We also studied a device patterned with a spider's web pattern, which gives us insight into the distribution of surface plasmons on the laser facet. (C) 2008 Optical Society of America
Keyword:
SURFACE-EMITTING LASER
SUBWAVELENGTH APERTURE
POLARIZATION CONTROL
LIGHT
GRATINGS
LITHOGRAPHY
GENERATION
NANOHOLES
FILMS
期刊
IF:
3.3
论文数:
6.1W
被引数:
14.3W
机构
引用论文
Surface plasmon generation and light transmission by isolated nanoholes and arrays of nanoholes in thin metal films.png)
OPTICS EXPRESSOAAI
OPTICS EXPRESSIF3.3
OAAI分享收藏分享收藏Physical origin of photonic energy gaps in the propagation of surface plasmons on gratingsPHYSICAL REVIEW B
PHYSICAL REVIEW BIF3.7
PREAI
分享收藏A clinical analysis of systemic chemotherapy combined with radiotherapy for advanced gastric cancerMedicine
OAAI
MedicineIF0
OAAI分享收藏
查看更多内容