Return-Path: Received: from [149.220.60.203] (account rp6038@hzdr.de [149.220.60.203] verified) by hzdr.de (CommuniGate Pro SMTP 6.1.12) with ESMTPSA id 16356589 for picongpu-users@hzdr.de; Wed, 08 Feb 2017 11:28:57 +0100 Message-ID: <589AF2E9.9030907@hzdr.de> Date: Wed, 08 Feb 2017 11:28:57 +0100 From: Richard Pausch User-Agent: Mozilla/5.0 (X11; Linux i686; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: picongpu-users@hzdr.de Subject: Re: [PIConGPU-Users] Laser pulse polarization References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------060200050105060003060103" This is a multi-part message in MIME format. --------------060200050105060003060103 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Dear Bifeng Lei, judging from the picture you send, it looks like you resolve 1 laser wavelength with approximately 2 cells. Could it be, that your longitudinal resolution is too low? What is the ratio of your laser wavelength to your longitudinal grid size (|WAVE_LENGTH_SI| / |CELL_HEIGHT_SI|). Is it larger than 10? Best, Richard Am 08.02.2017 um 11:22 schrieb Bifeng Lei: > Dear all, > > I am trying to use a linear polarized Gaussian laser pulse in > x-direction. So, I set the polarization in the file/, > //laserConfig//.param /for/laserGaussianBeam:/ > > enum PolarisationType > { > LINEAR_X = 1u, > LINEAR_Z = 2u, > CIRCULAR = 4u, > }; > BOOST_CONSTEXPR_OR_CONST PolarisationType Polarisation = LINEAR_X; > } > > But the result shows that the pulse seems not correct. Please see the > attachment. Is there anything I am doing wrong? > > All best > > Bifeng Lei > > > ############################################################# > This message is sent to you because you are subscribed to > the mailing list . > To unsubscribe, E-mail to: > To switch to the DIGEST mode, E-mail to > To switch to the INDEX mode, E-mail to > Send administrative queries to > --------------060200050105060003060103 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit

Dear Bifeng Lei,

judging from the picture you send, it looks like you resolve 1 laser wavelength with approximately 2 cells.
Could it be, that your longitudinal resolution is too low?
What is the ratio of your laser wavelength to your longitudinal grid size (WAVE_LENGTH_SI / CELL_HEIGHT_SI). Is it larger than 10?

Best,
Richard

Am 08.02.2017 um 11:22 schrieb Bifeng Lei:

Dear all,

I am trying to use a linear polarized Gaussian laser pulse in x-direction. So, I set the polarization in the file, laserConfig.param for laserGaussianBeam:

        enum PolarisationType
        {
            LINEAR_X = 1u,
            LINEAR_Z = 2u,
            CIRCULAR = 4u,
        };
        BOOST_CONSTEXPR_OR_CONST PolarisationType Polarisation = LINEAR_X;
    }

But the result shows that the pulse seems not correct. Please see the attachment. Is there anything I am doing wrong?

All best

Bifeng Lei
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