@article {14104,
	title = {Theoretical Study of a Broadband Quasi-Optical Mode Converter for Pulse Gyrotron Devices},
	journal = {IEEE Trans. on Plasma Science},
	volume = {44},
	year = {2016},
	pages = {2348-2355},
	abstract = {Theoretical investigation of a broadband quasi-optical mode converter for 330-GHz TE62 mode gyrotron application is presented. The converter consists of a Vlasov launcher and three reflector mirrors. Special considerations, including a Vlasov launcher with reasonably large aperture radius and optimized combination of two elliptic reflectors and a bifocal parabolic reflector, are the keys to achieve broadband mode converting. The optimized internal converter is well compatible with the gyrotron electron-optical system and generates Gaussian beam with efficiency higher than 80\% in an extraordinary broadband range between 310 and 340 GHz. The principle of the broadband converter can also be applied to gyrotron amplifiers.},
	url = {http://ieeexplore.ieee.org/document/7572128/},
	author = {Chao-Hai Du},
	editor = {Xiang-Bo Qi}
}
