diff --git a/matlab/ConvertHDF5_VTK.m b/matlab/ConvertHDF5_VTK.m
index 5bd22e9..1fccadc 100644
--- a/matlab/ConvertHDF5_VTK.m
+++ b/matlab/ConvertHDF5_VTK.m
@@ -12,6 +12,7 @@ function ConvertHDF5_VTK(hdf_file, vtk_prefix, varargin)
 %   'FD_Dump':  activate dump for frequency-domain data (default is on)
 %   'NumPhase': number of phase to dump frequency domain data animation
 %               (default is 36 --> 10°)
+%   'FieldName': field name written to vtk, e.g. 'E-Field'
 %
 % example:
 %   % read time-domian data from hdf5, perform dft and dump as vtk
@@ -27,40 +28,57 @@ do_FD_dump = 1;
 do_TD_dump = 0;
 phase_N = 36;
 
+fieldname = 'unknown';
+
 for n=1:2:numel(varargin)
-	if (strcmp(varargin{n},'TD_Dump')==1);
-		do_TD_dump =  varargin{n+1};
-	end
-	if (strcmp(varargin{n},'FD_Dump')==1);
-		do_FD_dump =  varargin{n+1};
-	end
-	if (strcmp(varargin{n},'NumPhase')==1);
-		phase_N =  varargin{n+1};
-	end
+    if (strcmp(varargin{n},'TD_Dump')==1);
+        do_TD_dump =  varargin{n+1};
+    end
+    if (strcmp(varargin{n},'FD_Dump')==1);
+        do_FD_dump =  varargin{n+1};
+    end
+    if (strcmp(varargin{n},'NumPhase')==1);
+        phase_N =  varargin{n+1};
+    end
+    if (strcmp(varargin{n},'FieldName')==1);
+        fieldname =  varargin{n+1};
+    end
 end
 
 [field mesh] = ReadHDF5Dump(hdf_file, varargin{:});
 
+if ((do_TD_dump==0) && (do_FD_dump==0))
+    warning('openEMS:ConvertHDF5_VTK','FD and TD dump disabled, nothing to be done...');
+end
+
 if (do_FD_dump)
-    ph = linspace(0,360,phase_N+1);
-    ph = ph(1:end-1);
-    for n = 1:numel(field.FD.freq)
-        for p = ph
-            filename = [vtk_prefix '_' num2str(field.FD.freq(n)) '_' num2str(p,'%03d') '.vtk' ];
-            Dump2VTK(filename, real(field.FD.values{n}*exp(1j*p*pi/180)), mesh);
+    if (~isfield(field,'FD'))
+        warning('openEMS:ConvertHDF5_VTK','no FD data found skipping frequency domian vtk dump...');
+    else
+        ph = linspace(0,360,phase_N+1);
+        ph = ph(1:end-1);
+        for n = 1:numel(field.FD.freq)
+            for p = ph
+                filename = [vtk_prefix '_' num2str(field.FD.freq(n)) '_' num2str(p,'%03d') '.vtk' ];
+                Dump2VTK(filename, real(field.FD.values{n}*exp(1j*p*pi/180)), mesh, fieldname, varargin{:});
+            end
+            filename = [vtk_prefix '_' num2str(field.FD.freq(n)) '_abs.vtk' ];
+            Dump2VTK(filename, abs(field.FD.values{n}), mesh, fieldname, varargin{:});
+            filename = [vtk_prefix '_' num2str(field.FD.freq(n)) '_ang.vtk' ];
+            Dump2VTK(filename, angle(field.FD.values{n}), mesh, fieldname, varargin{:});
         end
-        filename = [vtk_prefix '_' num2str(field.FD.freq(n)) '_abs.vtk' ];
-        Dump2VTK(filename, abs(field.FD.values{n}), mesh);
-        filename = [vtk_prefix '_' num2str(field.FD.freq(n)) '_ang.vtk' ];
-        Dump2VTK(filename, angle(field.FD.values{n}), mesh);
     end
 end
 
 if (do_TD_dump)
-    disp('dumping time domain data...')
-    acc = ['%0' int2str(ceil(log10(numel(field.TD.time)+1))) 'd'];
-    for n = 1:numel(field.TD.time)
-        filename = [vtk_prefix '_TD_' num2str(n,acc) '.vtk' ];
-        Dump2VTK(filename, abs(field.TD.values{n}), mesh);
+    if (~isfield(field,'TD'))
+        warning('openEMS:ConvertHDF5_VTK','no TD data found skipping time domian vtk dump...');
+    else
+        disp('dumping time domain data...')
+        acc = ['%0' int2str(ceil(log10(numel(field.TD.time)+1))) 'd'];
+        for n = 1:numel(field.TD.time)
+            filename = [vtk_prefix '_TD_' num2str(n,acc) '.vtk' ];
+            Dump2VTK(filename, abs(field.TD.values{n}), mesh, fieldname, varargin{:});
+        end
     end
 end