Optimize images

12 files changed, 20 insertions, 8 deletions

diff --git a/content/know/concept/dispersive-broadening/index.pdc b/content/know/concept/dispersive-broadening/index.pdc
index 7342295..f053eb6 100644
--- a/content/know/concept/dispersive-broadening/index.pdc
+++ b/content/know/concept/dispersive-broadening/index.pdc
@@ -64,7 +64,9 @@ This phenomenon is illustrated below for our example of a Gaussian pulse
 with parameter values $T_0 = 1\:\mathrm{ps}$, $P_0 = 1\:\mathrm{kW}$,
 $\beta_2 = -10 \:\mathrm{ps}^2/\mathrm{m}$ and $\gamma = 0$:
 
-<img src="pheno-disp.jpg">
+<a href="pheno-disp.jpg">
+<img src="pheno-disp-small.jpg">
+</a>
 
 The **instantaneous frequency** $\omega_\mathrm{GVD}(z, t)$,
 which describes the dominant angular frequency at a given point in the time domain,
diff --git a/content/know/concept/dispersive-broadening/pheno-disp-small.jpg b/content/know/concept/dispersive-broadening/pheno-disp-small.jpg
new file mode 100644
index 0000000..8c70eac
--- /dev/null
+++ b/content/know/concept/dispersive-broadening/pheno-disp-small.jpg
diff --git a/content/know/concept/modulational-instability/index.pdc b/content/know/concept/modulational-instability/index.pdc
index d912c04..26d2552 100644
--- a/content/know/concept/modulational-instability/index.pdc
+++ b/content/know/concept/modulational-instability/index.pdc
@@ -177,7 +177,9 @@ $$\begin{aligned}
     = \sqrt{P_0} \sech\!\Big(\frac{t}{T_0}\Big)
 \end{aligned}$$
 
-<img src="pheno-mi.jpg">
+<a href="pheno-mi.jpg">
+<img src="pheno-mi-small.jpg">
+</a>
 
 Where $L_\mathrm{NL} = 1/(\gamma P_0)$ is the characteristic length of nonlinear effects.
 Note that no noise was added to the simulation;
diff --git a/content/know/concept/modulational-instability/pheno-mi-small.jpg b/content/know/concept/modulational-instability/pheno-mi-small.jpg
new file mode 100644
index 0000000..995ec81
--- /dev/null
+++ b/content/know/concept/modulational-instability/pheno-mi-small.jpg
diff --git a/content/know/concept/optical-wave-breaking/index.pdc b/content/know/concept/optical-wave-breaking/index.pdc
index 3c509fe..757a633 100644
--- a/content/know/concept/optical-wave-breaking/index.pdc
+++ b/content/know/concept/optical-wave-breaking/index.pdc
@@ -39,7 +39,9 @@ Shortly before the slope would become infinite,
 small waves start "falling off" the edge of the pulse,
 hence the name *wave breaking*:
 
-<img src="pheno-break-inst.jpg">
+<a href="pheno-break-inst.jpg">
+<img src="pheno-break-inst-small.jpg">
+</a>
 
 Several interesting things happen around this moment.
 To demonstrate this, spectrograms of the same simulation
@@ -57,7 +59,7 @@ which eventually melt together, leading to a trapezoid shape in the $t$-domain.
 Dispersive broadening then continues normally:
 
 <a href="pheno-break-sgram.jpg">
-<img src="pheno-break-sgram.jpg" style="width:80%;display:block;margin:auto;">
+<img src="pheno-break-sgram-small.jpg" style="width:80%;display:block;margin:auto;">
 </a>
 
 We call the distance at which the wave breaks $L_\mathrm{WB}$,
@@ -87,7 +89,7 @@ expression can be reduced to:
 $$\begin{aligned}
     \omega_i(z,t)
     \approx \frac{\beta_2 tz}{T_0^4} \bigg( 1 + 2\frac{\gamma P_0 T_0^2}{\beta_2} \exp\!\Big(\!-\!\frac{t^2}{T_0^2}\Big) \bigg)
-    = \frac{\beta_2 t z}{T_0^4} \bigg( 1 \pm 2 N_\mathrm{sol}^2 \exp\!\Big(\!-\!\frac{t^2}{T_0^2}\Big) \bigg)
+    = \frac{\beta_2 t z}{T_0^4} \bigg( 1 + 2 N_\mathrm{sol}^2 \exp\!\Big(\!-\!\frac{t^2}{T_0^2}\Big) \bigg)
 \end{aligned}$$
 
 Where we have assumed $\beta_2 > 0$,
@@ -183,7 +185,9 @@ $$\begin{aligned}
 This prediction for $L_\mathrm{WB}$ appears to agree well
 with the OWB observed in the simulation:
 
-<img src="pheno-break.jpg">
+<a href="pheno-break.jpg">
+<img src="pheno-break-small.jpg">
+</a>
 
 Because all spectral broadening up to $L_\mathrm{WB}$ is caused by SPM,
 whose frequency behaviour is known, it is in fact possible to draw
diff --git a/content/know/concept/optical-wave-breaking/pheno-break-inst-small.jpg b/content/know/concept/optical-wave-breaking/pheno-break-inst-small.jpg
new file mode 100644
index 0000000..f7568e6
--- /dev/null
+++ b/content/know/concept/optical-wave-breaking/pheno-break-inst-small.jpg
diff --git a/content/know/concept/optical-wave-breaking/pheno-break-sgram-small.jpg b/content/know/concept/optical-wave-breaking/pheno-break-sgram-small.jpg
new file mode 100644
index 0000000..3c493f2
--- /dev/null
+++ b/content/know/concept/optical-wave-breaking/pheno-break-sgram-small.jpg
diff --git a/content/know/concept/optical-wave-breaking/pheno-break-small.jpg b/content/know/concept/optical-wave-breaking/pheno-break-small.jpg
new file mode 100644
index 0000000..f29a32a
--- /dev/null
+++ b/content/know/concept/optical-wave-breaking/pheno-break-small.jpg
diff --git a/content/know/concept/self-phase-modulation/index.pdc b/content/know/concept/self-phase-modulation/index.pdc
index 868fd68..1ec3fdd 100644
--- a/content/know/concept/self-phase-modulation/index.pdc
+++ b/content/know/concept/self-phase-modulation/index.pdc
@@ -71,7 +71,9 @@ $$\begin{aligned}
     A(z, t) = \sqrt{P_0} \exp\!\Big(\!-\!\frac{t^2}{2 T_0^2}\Big) \exp\!\bigg( i \gamma z P_0 \exp\!\Big(\!-\!\frac{t^2}{T_0^2}\Big) \bigg)
 \end{aligned}$$
 
-<img src="pheno-spm.jpg">
+<a href="pheno-spm.jpg">
+<img src="pheno-spm-small.jpg">
+</a>
 
 The **instantaneous frequency** $\omega_\mathrm{SPM}(z, t)$,
 which describes the dominant angular frequency at a given point in the time domain,
diff --git a/content/know/concept/self-phase-modulation/pheno-spm-small.jpg b/content/know/concept/self-phase-modulation/pheno-spm-small.jpg
new file mode 100644
index 0000000..6f041ec
--- /dev/null
+++ b/content/know/concept/self-phase-modulation/pheno-spm-small.jpg
diff --git a/content/know/concept/self-steepening/index.pdc b/content/know/concept/self-steepening/index.pdc
index efbdfe4..97999b7 100644
--- a/content/know/concept/self-steepening/index.pdc
+++ b/content/know/concept/self-steepening/index.pdc
@@ -118,7 +118,9 @@ $L_\mathrm{shock} = 0.847\,\mathrm{m}$,
 which turns out to be accurate,
 although the simulation breaks down due to insufficient resolution:
 
-<img src="pheno-steep.jpg">
+<a href="pheno-steep.jpg">
+<img src="pheno-steep-small.jpg">
+</a>
 
 Unfortunately, self-steepening cannot be simulated perfectly: as the
 pulse approaches $L_\mathrm{shock}$, its spectrum broadens to infinite
diff --git a/content/know/concept/self-steepening/pheno-steep-small.jpg b/content/know/concept/self-steepening/pheno-steep-small.jpg
new file mode 100644
index 0000000..bb2a158
--- /dev/null
+++ b/content/know/concept/self-steepening/pheno-steep-small.jpg